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        <title>PSCS Wiki</title>
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    <item rdf:about="https://wiki.pscs.co.uk/how_to:french_webmail_language_file?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>French Webmail Language File</title>
        <link>https://wiki.pscs.co.uk/how_to:french_webmail_language_file?rev=1542192349&amp;do=diff</link>
        <description>French Webmail Language File

Copy/paste the text below to a file &#039;french.lng&#039; or &#039;francais.lng&#039; in the VPOP3 directory. (French users, feel free to update/correct the text below) 


#login page
logintitle=VPOP3 Login
webadminlogin=web admin login
webmaillogin=web mail login
enterusername=You must specify your VPOP3 username here
bookmarksnotsupported=I&#039;m sorry, but your web browser does not support this function. You will have to add this page to your bookmarks manually.
loginfailed=Login Faile…</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>German Webmail Language Page</title>
        <link>https://wiki.pscs.co.uk/how_to:german_webmail_language_file?rev=1542192349&amp;do=diff</link>
        <description>German Webmail Language Page

Copy/paste the text below to a file &#039;german.lng&#039; in the VPOP3 directory.
(German users, feel free to update/correct the text below)


#login page
logintitle=VPOP3 Login
webadminlogin=web admin login
webmaillogin=Webmail Anmeldung
enterusername=Sie m&amp;uuml;ssen einen Benutzernamen angeben
bookmarksnotsupported=I&#039;m sorry, but your web browser does not support this function. You will have to add this page to your bookmarks manually.
loginfailed=Anmeldung fehlgeschlagen …</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Incoming SMTP Feed</title>
        <link>https://wiki.pscs.co.uk/how_to:incoming_smtp_feed?rev=1542192349&amp;do=diff</link>
        <description>Incoming SMTP Feed

An incoming SMTP feed is where incoming mail is sent directly to your mail server without going through your ISP&#039;s POP3 mail server on the way. 

Advantages

An incoming SMTP feed has several advantages over going via a POP3 mailbox:</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:configure_email_signatures?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Configure Email Signatures</title>
        <link>https://wiki.pscs.co.uk/how_to:configure_email_signatures?rev=1542192349&amp;do=diff</link>
        <description>Configure Email Signatures

	*  Global Signatures
	*  Personal Signatures
	*  Webmail Signatures

Notes

When creating a signature it is generally best to keep it as short as possible. 

Disclaimers &amp; confidentiality notices in emails are generally regarded as having little or no legal significance, so lengthy signatures just use up bandwidth.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:encrypt_sessions?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>How To Encrypt Sessions</title>
        <link>https://wiki.pscs.co.uk/how_to:encrypt_sessions?rev=1542192349&amp;do=diff</link>
        <description>How To Encrypt Sessions

VPOP3 Enterprise 2.6 and later supports SSL/STARTTLS encrypted sessions to VPOP3 itself. So, the email client or web browser will encrypt the data passed to VPOP3 so it cannot be intercepted.

This requires an SSL Certificate to be created for VPOP3.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:installation_conflicts?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Installation conficts</title>
        <link>https://wiki.pscs.co.uk/how_to:installation_conflicts?rev=1542192349&amp;do=diff</link>
        <description>Installation conficts

During installation, the installer program does some basic checks for conflicting software. This is software which is providing the same services as the VPOP3 software - i.e. SMTP, POP3 and/or LDAP services. For POP3/SMTP it will show the text which the conflicting software announces itself as.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:out_of_disk_space_when_sending_mail?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Out of Disk Space When Sending Mail</title>
        <link>https://wiki.pscs.co.uk/how_to:out_of_disk_space_when_sending_mail?rev=1542192349&amp;do=diff</link>
        <description>Out of Disk Space When Sending Mail

The first thing you should do is check that there is enough free disk space on the disk where VPOP3 is installed. VPOP3 requires a certain amount of free space before it will allow new messages to be sent, so the disk might not be totally full, but VPOP3 will still report that there is insufficient disk space when you try to send a new message. This buffer zone is designed to help prevent the disk totally filling up, which can cause lots of bigger problems!</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:smtp_rule_example_-_restrict_who_can_send_to_a_local_email_address?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>SMTP Rule Example - restrict who can send to a local email address</title>
        <link>https://wiki.pscs.co.uk/how_to:smtp_rule_example_-_restrict_who_can_send_to_a_local_email_address?rev=1542192349&amp;do=diff</link>
        <description>SMTP Rule Example - restrict who can send to a local email address

If you have a local email address (a user, group or distribution list) and you want to restrict which email addresses can send messages to this address, you can use SMTP rules.

There are a few ways you can configure the SMTP rules for this scenario.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:address_book_tab?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Address Book tab</title>
        <link>https://wiki.pscs.co.uk/reference:address_book_tab?rev=1542192349&amp;do=diff</link>
        <description>Address Book tab

The Address Book tab within VPOP3 webmail enables you to manage your lists of contacts and add those contacts into a new or existing message. Substantial alterations to the interface were introduced in version 5. Both interfaces are documented.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:1069_-_login_failure_-_error_when_starting_vpop3db_service?rev=1573659355&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2019-11-13T15:35:55+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>1069 or 7000 Login Failure error when starting VPOP3DB service</title>
        <link>https://wiki.pscs.co.uk/how_to:1069_-_login_failure_-_error_when_starting_vpop3db_service?rev=1573659355&amp;do=diff</link>
        <description>1069 or 7000 Login Failure error when starting VPOP3DB service

A 1069 or 7000 login failure error when starting the VPOP3DB service usually means that something is &#039;wrong&#039; with the vpop3postgres account in Windows - the password may have expired, or someone may have reset the password.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:create_an_ssl_certificate?rev=1774261123&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2026-03-23T10:18:43+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>How to create an SSL Certificate</title>
        <link>https://wiki.pscs.co.uk/how_to:create_an_ssl_certificate?rev=1774261123&amp;do=diff</link>
        <description>How to create an SSL Certificate

VPOP3 Enterprise supports SSL certificates for encrypted sessions.

The basic mechanism to create an SSL certificate is that you have to generate a CSR (Certificate Signing Request) then send that to a CA (Certificate Authority) who will sign your certificate and give you the certificate back.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:sender_domain_must_resolve?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Sender Domain Must Resolve</title>
        <link>https://wiki.pscs.co.uk/how_to:sender_domain_must_resolve?rev=1542192349&amp;do=diff</link>
        <description>Sender Domain Must Resolve

If you receive an &#039;SMTP Client Error&#039; something like:

451 (user@domain.com) Sender Domain Must Resolve

this means that the ISP&#039;s mail server cannot find the domain.com part of the email address.

Often this means that the FROM address of the message is invalid, or that the</description>
    </item>
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        <dc:format>text/html</dc:format>
        <dc:date>2020-09-03T15:07:34+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Upgrading VPOP3 to version 8.x from v7 or earlier</title>
        <link>https://wiki.pscs.co.uk/how_to:upgrade_vpop3_to_version_8?rev=1599145654&amp;do=diff</link>
        <description>Upgrading VPOP3 to version 8.x from v7 or earlier

VPOP3 v8.x uses PostgreSQL 10 as its database engine, which is the latest supported 32 bit version of PostgreSQL. Later versions of PostgreSQL are 64-bit only, which means we cannot use them while continuing to support 32 bit versions of Windows.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:upgrade_vpop3_to_version_9?rev=1773866994&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2026-03-18T20:49:54+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Upgrading VPOP3 to version 9.x from v7 or v8</title>
        <link>https://wiki.pscs.co.uk/how_to:upgrade_vpop3_to_version_9?rev=1773866994&amp;do=diff</link>
        <description>Upgrading VPOP3 to version 9.x from v7 or v8

VPOP3 v9 and later requires a 64 bit version of Windows 8.1 or later 

VPOP3 v9.x uses PostgreSQL 18 as its database engine. This can only easily be upgraded from PostgreSQL 9.3 or later, which means it must be an upgrade of VPOP3 v7 or later. If you are using an earlier version of VPOP3, then upgrade it to v8.7 first, then upgrade to v9 or later</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:database_backups?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Database -&gt; Backups Tab</title>
        <link>https://wiki.pscs.co.uk/reference:database_backups?rev=1542192349&amp;do=diff</link>
        <description>Database -&gt; Backups Tab

The Backups tab lets you specify how VPOP3 will make its daily backup of its database.

We strongly recommend that you backup the database regularly in case of disk problems or file corruption. You can use the VPOP3 backup feature, or manually backup the PostgreSQL database using the pg_dump command, or use another program to backup the PostgreSQL database if you wish. Note that a simple disk copy will</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:lua_smtp_mx_control?rev=1771948188&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2026-02-24T15:49:48+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Lua SMTP MX Control</title>
        <link>https://wiki.pscs.co.uk/reference:lua_smtp_mx_control?rev=1771948188&amp;do=diff</link>
        <description>Lua SMTP MX Control

Every time VPOP3 is going to send messages using direct MX sending, it runs a script called mxout.lua which can be created/edited in Settings -&gt; Scripts (or in the VPOP3 directory in VPOP3 v6.6 or earlier).

Global Variables

Starting with v8.8, the following global variables are defined:</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:sender_direct_settings?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>SMTP Direct Sender Settings</title>
        <link>https://wiki.pscs.co.uk/reference:sender_direct_settings?rev=1542192349&amp;do=diff</link>
        <description>SMTP Direct Sender Settings

Mail Connectors -&gt; Mail Senders -&gt; SMTP Direct Sender -&gt; Settings tab

The SMTP Direct Settings tab lets you set how VPOP3 will send mail using SMTP Direct

DNS Servers to Use

This setting tells VPOP3 the IP addresses of the DNS servers it should use to find the recipients&#039; mail servers. Separate multiple addresses with commas.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_statement_if?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: If</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_statement_if?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: If
Statement  If Version  2.1.7+ Purpose  Enables you to perform a simple relational test on a variable 
You can specify a variable or a constant on either or both sides of the relational operator. The relational operator can be one of:</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/adminapi:userrulelist?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>UserRuleList Replacement</title>
        <link>https://wiki.pscs.co.uk/adminapi:userrulelist?rev=1542192349&amp;do=diff</link>
        <description>UserRuleList Replacement

Use:
~userrulelist~
&lt;format string&gt;
~end~

Required parameter: Account

This returns the message rule list (in order) for the specified user

The format string can have the replacements

	*  id - numeric ID of the rule
	*  order - numeric order number (1-n) of the rule</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/faq:can_i_change_the_vpop3_licence_owner_name?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Can I change the VPOP3 licence owner name?</title>
        <link>https://wiki.pscs.co.uk/faq:can_i_change_the_vpop3_licence_owner_name?rev=1542192349&amp;do=diff</link>
        <description>Can I change the VPOP3 licence owner name?

The VPOP3 licence owner name is tied to the licence key, so you cannot just change the name without getting a new licence key.

There is generally no need to change the licence owner name since it is not published anywhere, but if you really must change the name, then you can request a name change if you upgrade to a later version or larger size of VPOP3 or there is a £10 administration fee if you just want to change the name without upgrading the lice…</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/faq:gdpr_for_vpop3?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>GDPR for VPOP3 self-hosted software</title>
        <link>https://wiki.pscs.co.uk/faq:gdpr_for_vpop3?rev=1542192349&amp;do=diff</link>
        <description>GDPR for VPOP3 self-hosted software

VPOP3 is an email server program, it is not a service, so if you use VPOP3 on your own computer we are not a “data controller” or a “data processor” under GDPR rules as we never see any of your data (unless you give us permission to remotely connect to your PC for technical support purposes).</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/faq:how_can_i_place_an_order?rev=1544023484&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-12-05T15:24:44+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>How can I place an order</title>
        <link>https://wiki.pscs.co.uk/faq:how_can_i_place_an_order?rev=1544023484&amp;do=diff</link>
        <description>How can I place an order

Online

The easiest way to place an order is online. Click on the Purchase item in our website navigation bar, and select the appropriate product. You will be presented with a price list. Choose the required item and click the</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/faq:smtp_relay_service?rev=1624955743&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2021-06-29T08:35:43+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>SMTP Relay Service FAQ</title>
        <link>https://wiki.pscs.co.uk/faq:smtp_relay_service?rev=1624955743&amp;do=diff</link>
        <description>SMTP Relay Service FAQ

We provide an SMTP Relay Service for many of our customers. The price starts from £40 (+VAT if applicable) per year, for up to 5000 messages, or 750MB, per month.

How do I order the SMTP Relay Service?

To order the SMTP relay service, either email</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/faq:what_is_vpop3_software_maintenance?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>What is Software Maintenance?</title>
        <link>https://wiki.pscs.co.uk/faq:what_is_vpop3_software_maintenance?rev=1542192349&amp;do=diff</link>
        <description>What is Software Maintenance?

VPOP3 Software Maintenance includes basic email support (target turnaround within 3 days) as well as version upgrades  (eg 6.19 to 6.20) free of charge when they are released during the period of validity of your Software Maintenance.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/faq:what_is_vpop3_upgrade_protection?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>What is Software Maintenance?</title>
        <link>https://wiki.pscs.co.uk/faq:what_is_vpop3_upgrade_protection?rev=1542192349&amp;do=diff</link>
        <description>What is Software Maintenance?

VPOP3 Software Maintenance includes basic email support (target turnaround within 3 days) as well as version upgrades  (eg 4.x to 5.x) free of charge when they are released during the period of validity of your Software Maintenance.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/faq:windows_server_port_conflicts?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Windows Server Port Conflicts</title>
        <link>https://wiki.pscs.co.uk/faq:windows_server_port_conflicts?rev=1542192349&amp;do=diff</link>
        <description>Windows Server Port Conflicts

LDAP Server Conflict

When you run VPOP3 on a server edition of Windows you may receive an error saying

LDAP server not started - couldn&#039;t bind socket port 389 (10048)

This error happens because VPOP3 contains an LDAP (Lightweight Directory Access Protocol) server for its global address book functionality, and the Windows 2000/2003 &#039;Active Directory Service&#039; also uses LDAP as its mechanism. These two services are conflicting.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:calendars?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Calendars</title>
        <link>https://wiki.pscs.co.uk/how_to:calendars?rev=1542192349&amp;do=diff</link>
        <description>Calendars

To use the calendar facility in VPOP3 you need a CalDAV aware client. We have tested it with the free Mozilla Sunbird &amp; Lightning products as well as the emClient email client.

These products need a URL to be able to access the CalDAV data store. Once you have the URL (see below), copy it into the</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:calendars_on_em_client?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Calendars on eM Client</title>
        <link>https://wiki.pscs.co.uk/how_to:calendars_on_em_client?rev=1542192349&amp;do=diff</link>
        <description>Calendars on eM Client

If you have used CalDAV calendars on Mozilla Lightning/Sunbird, then the eM Client configuration is quite different, but simple.

To add a CalDAV account to eM Client

	*  Go to Tools -&gt; Accounts
	*  Click New Account...
	*  Open the</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:controlling_vpop3_via_email?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Controlling VPOP3 via Email</title>
        <link>https://wiki.pscs.co.uk/how_to:controlling_vpop3_via_email?rev=1542192349&amp;do=diff</link>
        <description>Controlling VPOP3 via Email

You can control certain aspects of VPOP3 by sending emails to &#039;mailer_daemon@&lt;your domain&gt;&#039;

The subject line must be one of the lines below:

	*  Set Assistant
	*  Query Assistant
	*  Password
	*  Set Forwarding
	*  Query Forwarding</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:creating_extra_smtp_services?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Creating Extra SMTP Services</title>
        <link>https://wiki.pscs.co.uk/how_to:creating_extra_smtp_services?rev=1542192349&amp;do=diff</link>
        <description>Creating Extra SMTP Services

In VPOP3 Enterprise (not VPOP3 Basic) you can create multiple SMTP services. This can be useful if you want VPOP3 to listen on different ports and/or have different settings.

There are two ways of doing this.

Have a single SMTP service listening on multiple ports or IP addresses</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:data_stream_contained_nul_character?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Data stream contained NUL character</title>
        <link>https://wiki.pscs.co.uk/how_to:data_stream_contained_nul_character?rev=1542192349&amp;do=diff</link>
        <description>Data stream contained NUL character

Description of the problem

NUL characters (bytes with value 0) are not allowed in email messages and should not be transmitted over POP3, SMTP or IMAP4 except in certain circumstances. If an attachment contains such a byte it must be encoded using</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:error_messages?rev=1759764097&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-10-06T15:21:37+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Error Messages</title>
        <link>https://wiki.pscs.co.uk/how_to:error_messages?rev=1759764097&amp;do=diff</link>
        <description>Error Messages

This is the place to look if you are trying to trouble shoot a problem and you have received or have access to a specific error message or error code. If instead your problem is that something you think is set up correctly is not working then the best place to look would be the</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:fax_global_address_book?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Fax Printer Driver Address Book</title>
        <link>https://wiki.pscs.co.uk/how_to:fax_global_address_book?rev=1542192349&amp;do=diff</link>
        <description>Fax Printer Driver Address Book

The VPOP3 Fax Printer Driver obtains address book details using LDAP. So, you must make sure that the VPOP3 LDAP service is enabled, and that the Fax Printer Driver has the correct VPOP3 address, and the same TCP/IP port defined to access the LDAP service as VPOP3 is using.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:filtering_attachments?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>How to filter attachments</title>
        <link>https://wiki.pscs.co.uk/how_to:filtering_attachments?rev=1542192349&amp;do=diff</link>
        <description>How to filter attachments

VPOP3 can filter attachments in several ways.

The most general is to use the Settings -&gt; Attachment Processing -&gt; Filtering tab as described below.

VPOP3 can also filter attachments using the content/spam filter, or by using an integrated virus scanner.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:forwarded_emails_not_arriving?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Forwarded Emails Not Arriving</title>
        <link>https://wiki.pscs.co.uk/how_to:forwarded_emails_not_arriving?rev=1542192349&amp;do=diff</link>
        <description>Forwarded Emails Not Arriving

If you are having problems having VPOP3 forward incoming messages to an external address, but sending messages directly to that address works OK, and forwarding internal messages to that address works OK, then the problem may be the SMTP return address which VPOP3 is using.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:ghost_folders?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>IMAP4 &#039;Ghost Folders&#039;</title>
        <link>https://wiki.pscs.co.uk/how_to:ghost_folders?rev=1542192349&amp;do=diff</link>
        <description>IMAP4 &#039;Ghost Folders&#039;

Sometimes your IMAP4 email client may show folders in the folder tree, but when you select them, you get an error that the folder does not exist.

This happens because IMAP4 has the concept of being able to &#039;subscribe&#039; to folders - this means that you can hide folders by unsubscribing from them.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:handling_mail_for_multiple_incoming_domains?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Handling mail for multiple incoming domains</title>
        <link>https://wiki.pscs.co.uk/how_to:handling_mail_for_multiple_incoming_domains?rev=1542192349&amp;do=diff</link>
        <description>Handling mail for multiple incoming domains

VPOP3 can easily handle mail for several incoming domains.

Exactly how you do it depends on the exact situation.

All domains are &#039;aliases&#039;

If the domains are aliases of each other, for instance, you have &#039;mycompany.com&#039; and &#039;mycompany.org&#039;, both of which are the same, so each address at mycompany.com also exists at mycompany.org, and the emails go to the same people regardless of which domain is used, then you simply configure the domains in the ma…</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:install_to_external_pgsql?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Install VPOP3 using external PostgreSQL database</title>
        <link>https://wiki.pscs.co.uk/how_to:install_to_external_pgsql?rev=1542192349&amp;do=diff</link>
        <description>Install VPOP3 using external PostgreSQL database

(VPOP3 version 5 or later)

In some cases, advanced users may wish to have VPOP3 use an external PostgreSQL database instead of the one installed with VPOP3. This is possible by telling VPOP3 the connection details during installation.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:is_it_possible_to_stop_messages_that_vpop3_downloads_from_being_marked_as_read?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Is it possible to stop messages that VPOP3 downloads from being marked as read?</title>
        <link>https://wiki.pscs.co.uk/how_to:is_it_possible_to_stop_messages_that_vpop3_downloads_from_being_marked_as_read?rev=1542192349&amp;do=diff</link>
        <description>Is it possible to stop messages that VPOP3 downloads from being marked as read?

VPOP3 does not mark messages as read when it downloads them. In fact, the POP3 protocol doesn&#039;t have a system available for marking messages as read, so it is impossible for VPOP3 to mark messages as read.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:mail_not_downloading_from_isp?rev=1775498387&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2026-04-06T17:59:47+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Mail Not Downloading From ISP</title>
        <link>https://wiki.pscs.co.uk/how_to:mail_not_downloading_from_isp?rev=1775498387&amp;do=diff</link>
        <description>Mail Not Downloading From ISP

This normally happens because you have told VPOP3 to Leave Messages On Server (on the Mail Connectors -&gt; Mail Collectors -&gt; (name) -&gt; POP3 General tab). If you do this, VPOP3 will leave messages on the ISP&#039;s mail server for several days, and remember that it has already downloaded them. Then, the next time it connects it will see that there are some messages waiting, but it may find that it has already downloaded them, so it won&#039;t download them again.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:mozilla_thunderbird?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>How to configure Mozilla Thunderbird</title>
        <link>https://wiki.pscs.co.uk/how_to:mozilla_thunderbird?rev=1542192349&amp;do=diff</link>
        <description>How to configure Mozilla Thunderbird

This article won&#039;t show you all the possible settings in Thunderbird, because there are so many. Thunderbird is one of the most powerful &amp; flexible email clients available at the time of writing, especially if you use IMAP4 (with VPOP3 Enterprise).</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:no_transport_provider_is_available?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Outlook/Windows Messaging reports &quot;No transport provider is available&quot;</title>
        <link>https://wiki.pscs.co.uk/how_to:no_transport_provider_is_available?rev=1542192349&amp;do=diff</link>
        <description>Outlook/Windows Messaging reports &quot;No transport provider is available&quot;

If Outlook or Windows Messaging reports No transport provider is available when trying to connect to VPOP3, it can mean several things. (This must be a contender for “the world&#039;s most meaningless error message</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:outbound_messages_not_appearing_in_monitor?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Outbound Messages Not Appearing in Monitor Target Mailbox</title>
        <link>https://wiki.pscs.co.uk/how_to:outbound_messages_not_appearing_in_monitor?rev=1542192349&amp;do=diff</link>
        <description>Outbound Messages Not Appearing in Monitor Target Mailbox

For VPOP3 to monitor outbound messages it needs to be able to work out that the message is FROM: a user whose mail should be monitored. To do this it has to examine the FROM: address in the message header.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:sending_mail_from_different_email_addresses_or_domains?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Sending mail from different email addresses or domains</title>
        <link>https://wiki.pscs.co.uk/how_to:sending_mail_from_different_email_addresses_or_domains?rev=1542192349&amp;do=diff</link>
        <description>Sending mail from different email addresses or domains

VPOP3 does not (by default) place any restrictions on which email addresses or domains you can send mail from. However, there may be external restrictions on which email addresses/domains you can send from. For instance, if you send mail through your ISP&#039;s mail server, they may only allow you to send mail from specific addresses, or the domain you send mail from may have a sender policy defined, such as</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:signing_outgoing_mail_with_dkim?rev=1595413960&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-07-22T10:32:40+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Signing outgoing mail with DKIM</title>
        <link>https://wiki.pscs.co.uk/how_to:signing_outgoing_mail_with_dkim?rev=1595413960&amp;do=diff</link>
        <description>Signing outgoing mail with DKIM

DKIM, also known as DomainKeys Identified Mail, is a form of email authentication that digitally signs emails to prove that they were sent from authorized domains and aren&#039;t fake emails. Companies like Google and Yahoo use DKIM to sign their emails and it is becoming ever more popular.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:spam_filter_not_working?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam filter not working</title>
        <link>https://wiki.pscs.co.uk/how_to:spam_filter_not_working?rev=1542192349&amp;do=diff</link>
        <description>Spam filter not working

If the VPOP3 spam filter appears not to be working at all, the first thing to do is to look at the message headers of an incoming message to see if the spam filter is being run at all.

Check to see if a header line beginning with X-VPOP3-Spam</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:spanish_webmail_language_file?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spanish Webmail Language File</title>
        <link>https://wiki.pscs.co.uk/how_to:spanish_webmail_language_file?rev=1542192349&amp;do=diff</link>
        <description>Spanish Webmail Language File

Copy/paste the text below to a file &#039;spanish.lng&#039; or &#039;espanol.lng&#039; in the VPOP3 directory. (Spanish users, feel free to update/correct the text below) 


#login page
logintitle=VPOP3 Login
webadminlogin=web admin login
webmaillogin=web mail login
enterusername=Especificar aca el usuario de Correo
bookmarksnotsupported=Disculpe, pero su navegador no soporta esta funcion.
loginfailed=Login Fallido - Favor reintente nuevamente
invalidlogin=Detalles del login inválidos…</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:troubleshooting_tips?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Troubleshooting Tips</title>
        <link>https://wiki.pscs.co.uk/how_to:troubleshooting_tips?rev=1542192349&amp;do=diff</link>
        <description>Troubleshooting Tips

Telnet

One of the most basic, and useful, tools for troubleshooting email systems is a Telnet client. 

Installing Telnet Client

Unfortunately, since Windows XP, Microsoft do not install the Telnet client into Windows by default, so you may need to install the Telnet client yourself.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:upgrade_vpop3_to_version_7?rev=1593427438&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-06-29T10:43:58+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>How to upgrade VPOP3 to version 7 or later from version 6 or earlier</title>
        <link>https://wiki.pscs.co.uk/how_to:upgrade_vpop3_to_version_7?rev=1593427438&amp;do=diff</link>
        <description>How to upgrade VPOP3 to version 7 or later from version 6 or earlier

As usual the process to upgrade is simply to install the later version over your existing installation (do not uninstall anything first). The below is technical information detailing an extra step performed by the installer in this particular upgrade step.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:use_download_rules_for_incoming_pop3_filtering?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Use Download Rules for incoming POP3 message filtering</title>
        <link>https://wiki.pscs.co.uk/how_to:use_download_rules_for_incoming_pop3_filtering?rev=1542192349&amp;do=diff</link>
        <description>Use Download Rules for incoming POP3 message filtering

If you have VPOP3 retrieving messages from a POP3 account on an ISP, then you can use Download Rules to do basic filtering on incoming messages. 
(If you have incoming SMTP, then use SMTP Rules instead)

Download rules cannot perform all mail filtering tasks. For more features,</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/how_to:vpop3_xxxxx_server_access_not_allowed?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>VPOP3 Server Access Not Allowed</title>
        <link>https://wiki.pscs.co.uk/how_to:vpop3_xxxxx_server_access_not_allowed?rev=1542192349&amp;do=diff</link>
        <description>VPOP3 Server Access Not Allowed

If you get an error like:

-ERR VPOP3 Server access not allowed!

when trying to access VPOP3, then this means that the relevant server&#039;s IP Access Restrictions defined in VPOP3 do not allow access from your client computer.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/mailapi:messageview4?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>MessageView4 Replacement</title>
        <link>https://wiki.pscs.co.uk/mailapi:messageview4?rev=1542192349&amp;do=diff</link>
        <description>MessageView4 Replacement

Use:
~messageview4~

Parameters:

	*  “headers” (optional - “y” means show full headers, otherwise show condensed headers)
	*  “msgformat” (optional - specifies format of &#039;message&#039; in result. “text” means UTF8 text, otherwise UTF8</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/mailapi:userrulelist?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>UserRuleList Replacement</title>
        <link>https://wiki.pscs.co.uk/mailapi:userrulelist?rev=1542192349&amp;do=diff</link>
        <description>UserRuleList Replacement

Use:
~userrulelist~
&lt;format string&gt;
~end~

Required parameter: None

This returns the message rule list (in order) for the current user

The format string can have the replacements

	*  id - numeric ID of the rule
	*  order - numeric order number (1-n) of the rule</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:admin_settings?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Settings -&gt; Admin Settings</title>
        <link>https://wiki.pscs.co.uk/reference:admin_settings?rev=1542192349&amp;do=diff</link>
        <description>Settings -&gt; Admin Settings

The Admin Settings page allows you to perform three key functions:

	*  
	*  
	*  

Choosing a Main Administrator

The Main Administrator receives notification emails, such as daily reports and errors/problems which may require manual intervention.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:calendar_events?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Calendar.Events table</title>
        <link>https://wiki.pscs.co.uk/reference:calendar_events?rev=1542192349&amp;do=diff</link>
        <description>Calendar.Events table

The Calendar.Events table contains a record of all the events in calendars managed by VPOP3.

An &#039;event&#039; is an iCalendar event. Note that if an event is a recurring series, there will only be one &#039;event&#039; in the database, not one event per instance of the recurrence.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:download_rules?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Download Rules</title>
        <link>https://wiki.pscs.co.uk/reference:download_rules?rev=1542192349&amp;do=diff</link>
        <description>Download Rules

Download rules are a facility in VPOP3 where it can look at message summary information before downloading a message from an ISP POP3 mailbox (they do not work on incoming SMTP messages - use SMTP Rules for that)

To edit download rules, go to</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:global_address_book?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Settings -&gt; Global Address Book</title>
        <link>https://wiki.pscs.co.uk/reference:global_address_book?rev=1542192349&amp;do=diff</link>
        <description>Settings -&gt; Global Address Book

The VPOP3 global address book allows users to access a shared address book from any email client which supports the &#039;LDAP&#039; protocol (most modern email clients do, but they may call it &#039;directory service&#039;

Importing Entries</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:groups?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Groups</title>
        <link>https://wiki.pscs.co.uk/reference:groups?rev=1542192349&amp;do=diff</link>
        <description>Groups

In VPOP3 a &#039;group&#039; is mainly an administrative feature. If you only wish to have a list of email addresses to send messages to under one address, you should use the &#039;List&#039; feature instead. The main function of Groups is to let you set certain user attributes for a whole group of users at once.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:local_mail_general?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Settings -&gt; Local Mail -&gt; General</title>
        <link>https://wiki.pscs.co.uk/reference:local_mail_general?rev=1542192349&amp;do=diff</link>
        <description>Settings -&gt; Local Mail -&gt; General

The Local Mail -&gt; General page allows you to configure a few simple, but fundamentally important settings.

Default Domain

In the majority† of cases, this is the domain name that VPOP3 will use when sending automated messages; for instance, users may receive a message from</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:lua_scripting?rev=1774568941&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2026-03-26T23:49:01+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Lua Scripting</title>
        <link>https://wiki.pscs.co.uk/reference:lua_scripting?rev=1774568941&amp;do=diff</link>
        <description>Lua Scripting

Lua is a simple scripting programming language often used for embedding in other applications. VPOP3 uses it to customise behaviour in places where most people will be happy with the default behaviour, but occasionally people will want to do something more complicated. Rather than having lots of extra options to complicate things for most users, we have opted to go for a more flexible scripting facility.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:lua_smtp_relay_control?rev=1755163495&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-08-14T09:24:55+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Lua SMTP Relay Control</title>
        <link>https://wiki.pscs.co.uk/reference:lua_smtp_relay_control?rev=1755163495&amp;do=diff</link>
        <description>Lua SMTP Relay Control

Every time VPOP3 is going to send messages via SMTP Relay, it runs a script called relayout.lua in the VPOP3 directory.

Global Variables

This script may have global variables, depending on your version of VPOP3.

In VPOP3 3.0.0L and later, there are two read-only global variables set at the start of the script:</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:mail_tab?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Mail tab</title>
        <link>https://wiki.pscs.co.uk/reference:mail_tab?rev=1542192349&amp;do=diff</link>
        <description>Mail tab

The Mail tab within VPOP3 webmail enables you to manage your sent and received messages.

As you can see from the screenshot, the page is divided into three main sections:
Menu bar    General tab bar          Status bar  
[Mail tab - VPOP3 Version 5 Webmail]

Page structure

Mail toolbar

The Mail toolbar contains the following buttons:</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:misc_advanced?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Misc -&gt; Advanced Tab</title>
        <link>https://wiki.pscs.co.uk/reference:misc_advanced?rev=1542192349&amp;do=diff</link>
        <description>Misc -&gt; Advanced Tab

Settings -&gt; Misc Settings -&gt; Advanced

You will normally not need to change any settings on this page unless VPOP3 technical support have suggested it.

If you do make changes, and want to go back to the original settings, the Restore Defaults button will restore the settings to their defaults.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:misc_dns?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Misc -&gt; DNS Tab</title>
        <link>https://wiki.pscs.co.uk/reference:misc_dns?rev=1542192349&amp;do=diff</link>
        <description>Misc -&gt; DNS Tab

Settings -&gt; Misc Settings -&gt; DNS

The DNS tab lets you specify which DNS servers VPOP3 will use. DNS (Domain Name System) is a system which converts Internet host names (eg www.google.com) into a numeric IP address (eg 1.2.3.4), because all connections on the Internet are actually performed using numeric IP addresses, but it is easier for people to remember names.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:quarantine_viewer?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spamfilter Quarantine Viewer</title>
        <link>https://wiki.pscs.co.uk/reference:quarantine_viewer?rev=1542192349&amp;do=diff</link>
        <description>Spamfilter Quarantine Viewer

Settings -&gt; Spamfilter -&gt; Quarantine Viewer

The Quarantine Viewer lets you see messages which have been quarantined by the VPOP3 Spam Filter. As an administrator you can see quarantined messages for any user, and release them if appropriate. If you release a message, it will be sent into the original recipient&#039;s Inbox, not into your Inbox.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:sent_message_summary?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Sent message summary</title>
        <link>https://wiki.pscs.co.uk/reference:sent_message_summary?rev=1542192349&amp;do=diff</link>
        <description>Sent message summary

This will display the number of messages sent and total size over the past month. (It counts each recipient as its own message). You must have Historical Logging enabled in VPOP3 (Settings -&gt; Logging)

At a command prompt in the VPOP3 directory run</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:smtp_direct?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Mail Connectors -&gt; Mail Senders -&gt; SMTP Direct</title>
        <link>https://wiki.pscs.co.uk/reference:smtp_direct?rev=1542192349&amp;do=diff</link>
        <description>Mail Connectors -&gt; Mail Senders -&gt; SMTP Direct

VPOP3 can be configured to send mail directly to the recipient&#039;s mail server (or the recipient&#039;s mail service provider). Usually this is only used if you have a high-end business class Internet connection - such as a leased line, or your mail server is co-located in a data centre. Attempts to use SMTP Direct sending on a dial-up/ADSL/Cable/FTTC/etc connection may be problematic since the receiving mail server may think you a home user who has been …</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spam_filter_rules?rev=1674057433&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2023-01-18T15:57:13+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules</title>
        <link>https://wiki.pscs.co.uk/reference:spam_filter_rules?rev=1674057433&amp;do=diff</link>
        <description>Spam Filter Rules

VPOP3 Versions 2.1.7 and later have a built-in spam filter system which supports a simple script language optimised for content- and spam-filtering of email messages.

This reference contains a definition of the spam filtering script language supported by VPOP3. Note that as later versions of VPOP3 are released, more language features may be added, so this reference indicates in which version of VPOP3 a particular feature was added.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_assignments?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: Assignments</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_assignments?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: Assignments

You can assign values to variables using the syntax


${variable} = value | ${variable}


Assignment operators

The spam filter rules support the following assignment operators:
=  Specify the value of the variable to equal the value after the assignment operator</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_comments?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: Comments</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_comments?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: Comments

In the spam filter scripts, blank lines are ignored.

Any line beginning with a # character is treated as a comment. Comments must be on a line of their own; there is no way to add a comment to the end of a line.

Examples</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_statement_bulkscan?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: BulkScan</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_statement_bulkscan?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: BulkScan
Statement  BulkScan Version  2.1.7+ Purpose  Allows you to specify lots of search strings in one section without needing the verbose If statement 
The BulkScan statement requires a variable name and a limitless number of search specifiers, in the format</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_statement_foreach?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: ForEach</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_statement_foreach?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: ForEach
Statement  ForEach Version  2.1.7+ Purpose  Causes a loop to be run through for all values within specified criteria 
The ForEach statement requires either two or three parameters (depending on the type of loop that is being conducted), in the format</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_statement_goto?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: Goto</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_statement_goto?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: Goto
Statement  Goto Version  2.1.7+ Purpose  A mechanism for directing the script towards a specified label 
The Goto statement requires a label name, in the format
Goto &lt;label name&gt;
Labels are single word entries that appear on a line of their own, immediately preceded by the colon (:) character. 
The colon character is not part of the label name.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_statement_ifinbag?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: IfInBag</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_statement_ifinbag?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: IfInBag
Statement  IfInBag Version  2.3.7+ Purpose  Checks if a specified value is in a particular bag 
The IfInBag statement requires a bag name and value, in the format
IfInBag &lt;bag name&gt; &lt;value&gt;
	* All IfInBag statements must be followed by an</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_statement_iflocaladdress?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: IfLocalAddress</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_statement_iflocaladdress?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: IfLocalAddress
Statement  IfLocalAddress Version  2.2.1+ Purpose  Allows you to check if a specified email address is local to your VPOP3 installation 
IfLocalAddress requires just one paramater; the address, in the format
IfLocalAddress &lt;address&gt;</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_statement_ifmatch?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: IfMatch</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_statement_ifmatch?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: IfMatch
Statement  IfMatch Version  2.1.7+ Purpose  Allows you to perform a regular or substring match on a variable or part of the message being processed 
IfMatch statements require a data parameter and a search value, in the format</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:spamrules_statement_star_ifsupport?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spam Filter Rules: *IFSUPPORT</title>
        <link>https://wiki.pscs.co.uk/reference:spamrules_statement_star_ifsupport?rev=1542192349&amp;do=diff</link>
        <description>Spam Filter Rules: *IFSUPPORT
Statement  *IFSUPPORT Version  2.2.5+ Purpose  Allows the script to determine whether a particular command or function is supported by the installed version of VPOP3 
The *IFSUPPORT statement requires a command or a function, in the format</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:status_monitor_protocol?rev=1566205125&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2019-08-19T08:58:45+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Status Monitor (port 5109) protocol</title>
        <link>https://wiki.pscs.co.uk/reference:status_monitor_protocol?rev=1566205125&amp;do=diff</link>
        <description>Status Monitor (port 5109) protocol

This page documents the protocol used between VPOP3 and the Status Monitor. It&#039;s not intended for any other purpose, so it&#039;s a bit limited, but in certain cases you may find this useful

Login

Before the Status Monitor receives any updates or can issue commands it must log in using a user&#039;s credentials.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:user_autoresponder?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Autoresponder</title>
        <link>https://wiki.pscs.co.uk/reference:user_autoresponder?rev=1542192349&amp;do=diff</link>
        <description>Autoresponder

An autoresponder is a way of automatically replying to messages as they arrive in a user&#039;s mailbox.

In VPOP3, an incoming message must arrive in a user&#039;s mailbox for the autoresponder to trigger. If you use forwards, assistants, mappings, etc to divert a message before it arrives in the mailbox, the autoresponder will never trigger. If you want to use an autoresponder, but not keep the original message, then make sure the message arrives in the mailbox (eg by using an &#039;Assistant&#039;…</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:user_message_rules?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Message Rules</title>
        <link>https://wiki.pscs.co.uk/reference:user_message_rules?rev=1542192349&amp;do=diff</link>
        <description>Message Rules

The Edit User -&gt; Message Rules tab can be used to create/edit rules which are processed when messages arrive in a User&#039;s mailbox.

They can be used to copy messages, mark them as read, delete them, etc

VPOP3 will process Message Rules in the order they appear in the list. If you want to change the order of the rules, you can drag &amp; drop them into the correct order. Usually when VPOP3 has processed a rule, it will go on to check further rules, but you can use the</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:users_autoresponderconditions?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Users.AutoresponderConditions table</title>
        <link>https://wiki.pscs.co.uk/reference:users_autoresponderconditions?rev=1542192349&amp;do=diff</link>
        <description>Users.AutoresponderConditions table

The Users.AutoresponderConditions table contains a record of all autoresponder trigger conditions created in VPOP3.

These tell VPOP3 when a particular autoresponder should fire for a particular user. Each autoresponder can have zero or more conditions. An autoresponder with zero conditions will never fire but can be reactivated later by adding a new condition.</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:vpop3.postgresquery?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>VPOP3.PostgresQuery</title>
        <link>https://wiki.pscs.co.uk/reference:vpop3.postgresquery?rev=1542192349&amp;do=diff</link>
        <description>VPOP3.PostgresQuery

The Lua function &#039;VPOP3.PostgresQuery&#039; performs a query on the PostgreSQL database and returns the results in a table

It takes a single parameter which is the SQL query to perform (Note that any relations used in the query must have the schema specified).</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:vpop3.setsetting?rev=1615307830&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2021-03-09T16:37:10+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>VPOP3.SetSetting</title>
        <link>https://wiki.pscs.co.uk/reference:vpop3.setsetting?rev=1615307830&amp;do=diff</link>
        <description>VPOP3.SetSetting

The Lua function &#039;VPOP3.SetSetting&#039; sets a general setting forVPOP3

It takes two parameters:

	*  The name of the setting. This can either by the &#039;Name&#039; field of the &#039;Settings.Settings&#039; database table or the internal setting name
	*  The data to set (must be a string)</description>
    </item>
    <item rdf:about="https://wiki.pscs.co.uk/reference:white_black_lists?rev=1542192349&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2018-11-14T10:45:49+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Spamfilter White/Blacklists</title>
        <link>https://wiki.pscs.co.uk/reference:white_black_lists?rev=1542192349&amp;do=diff</link>
        <description>Spamfilter White/Blacklists

This lets you set whitelists &amp; blacklists for the spam filter.

There are four lists you can manage. The Whitelist Addresses &amp; Blacklist Addresses lists let you specify sender email addresses to check. With the default rule weights, if a sender&#039;s address is on the Whitelist, it will be allowed through the spam filter, and if it is on the Blacklist it will be blocked. If an address is on both the Whitelist and the Blacklist, they will cancel each other out, and the me…</description>
    </item>
</rdf:RDF>
