PSCS Wiki

Seeing where a message came from

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Seeing where a message came from Sometimes you need to check to see where a message really came from. The 'From:' email address is easily forged, so that cannot be relied upon. The first thing you have to do is to get the full message headers. These may look daunting, but are very useful for problem diagnosis.

ListServer Commands

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

ListServer Commands The ListServer is an automated process in VPOP3 which manages mailing lists. People can send commands to the ListServer to perform various functions remotely. Whether these commands are allowed, and exactly how they work depends on the particular mailing list's settings.

Formatting Syntax

Anonymous (anonymous@undisclosed.example.com) — 2026-03-16T16:00:10+00:00

Formatting Syntax DokuWiki supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing

Mail Connectors -> Mail Senders -> SMTP Direct

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Mail Connectors -> Mail Senders -> SMTP Direct VPOP3 can be configured to send mail directly to the recipient's mail server (or the recipient'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 …

Spam Filter Rules: ForEach

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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

SMTP Rule Example - restrict who can send to a local email address

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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.

Spam Filter Rules: IfMatch

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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

Spamfilter White/Blacklists

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spamfilter White/Blacklists This lets you set whitelists & blacklists for the spam filter. There are four lists you can manage. The Whitelist Addresses & Blacklist Addresses lists let you specify sender email addresses to check. With the default rule weights, if a sender'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…

Performance Requirements

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Performance Requirements The performance requirements for VPOP3 depends on many factors, so we can't give specific details for any scenario. How to detect limiting factors * Use the Windows Performance Monitor (perfmon.msc) * Add counters for:

Spam Filter Rules: GetAddressType

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: GetAddressType Statement GetAddressType Version 2.4.6+ Purpose Analyses a specified email address and reports what 'type' of address it is The GetAddressType statement requires an email address and variable name, in the format

Settings -> Local Mail -> General

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Settings -> Local Mail -> General The Local Mail -> 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

Spam Filter Rules: Comments

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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

Spam Filter Rules: AddBag

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: AddBag Statement AddBag Version 2.2.1+ Purpose Adds a value into a 'bag' containing a collection of values, creating the bag if necessary The AddBag statement requires a type, bag name and value, in the format AddBag

Spam Filter Rules: DefineRule

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: DefineRule Statement DefineRule Version 2.1.9+ Purpose Defines a rule name, default weighting and description. See Rule names and weights The DefineRule statement requires a name, default weight and description, in the format DefineRule "" ""

Spam Filter Rules: GlobalMatch

Anonymous (anonymous@undisclosed.example.com) — 2025-06-06T08:15:50+00:00

Spam Filter Rules: GlobalMatch Statement GlobalMatch Version 2.3.13+ Purpose Does a RegExp match on the supplied data and puts the results in a bag The GlobalMatch statement requires a data parameter, a search value, and the name of a bag to place the matches into, in the format

Attachments have been removed or renamed

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Attachments have been removed or renamed If you have received an email and one or more of its attachments have been removed or renamed, it might be a result of Attachment Filtering. You can inspect the filtering rules by going to Administration Settings -> Settings ->

Configure SRS

Anonymous (anonymous@undisclosed.example.com) — 2025-08-18T15:28:11+00:00

Configure SRS In VPOP3 8.8 and later, you can use Lua scripting to implement 'SRS' (Sender Rewriting Scheme') in VPOP3 This involves adding a couple of functions to rewrite outgoing return paths in 'relayout.lua' or 'mxout.lua' as appropriate and a couple of functions to redirect rewritten bounce message recipients in 'smtpsvr.lua'

How to create an SSL Certificate

Anonymous (anonymous@undisclosed.example.com) — 2026-03-23T10:18:43+00:00

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.

Setting up VPOP3 to work with Exchange 2003

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Setting up VPOP3 to work with Exchange 2003 The instructions below are for Exchange Server 2003. For other versions of Exchange see here. You can link VPOP3 to Exchange Server, so that Exchange Server sends outgoing mail through VPOP3 and VPOP3 sends any incoming mail directly to Exchange Server.

Full Text Search

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Full Text Search In VPOP3 Enterprise v7.0 a facility for full-text-search on message content was added. Because the full-text-search indexes can be quite big, this facility is optional. For several reasons, the full-text-search is stored in a separate PostgreSQL database. This means that it is not backed up with your standard backups. After a restore, the full-text-search index can be rebuilt from the raw message content.

Route MX Sent (Direct) Outbound Mail Through Your ISP

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Route MX Sent (Direct) Outbound Mail Through Your ISP Some mail providers (for example Hotmail, AOL and GMail) will reject mail sent from servers running on dynamic IP addresses. It is possible to route such mail through your ISP's relay server whilst still sending most mail direct to the recipient server using MX

Signing outgoing mail with DKIM

Anonymous (anonymous@undisclosed.example.com) — 2020-07-22T10:32:40+00:00

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't fake emails. Companies like Google and Yahoo use DKIM to sign their emails and it is becoming ever more popular.

SMTP Rules

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

SMTP Rules Download rules are applied to messages which arrive at VPOP3 using SMTP - either locally sent messages, or incoming messages received through an SMTP mail feed. To configure the rules, go to the VPOP3 settings, then Services -> SMTP Service

How To Setup VPOP3 Service Security

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

How To Setup VPOP3 Service Security VPOP3 can be configured to restrict access to its various services depending on the client computer's IP address. This is useful if you want to allow access from only certain IP addresses (eg within your LAN) and prevent access from other IP addresses (eg the Internet).

Attachment Extraction Scripting

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Attachment Extraction Scripting This is the 'extraction.lua' script. (Added in V6.17) This script has one functions: * Extract This functions is called if the attachment extraction is enabled in Settings -> Attachment Processing -> Extraction.

Settings -> Attachment Processing

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Settings -> Attachment Processing The Attachment Processing page allows you to configure VPOP3 to perform two distinct functions on messages that contain attachments: * * Filtering The Filtering tab is divided into four main sections: Attachment Filtering

Group a user's folders into letter groups

Anonymous (anonymous@undisclosed.example.com) — 2026-03-16T11:12:42+00:00

Group a user's folders into letter groups This is useful in VPOP3 Enterprise if you have a large folder with many subfolders and want to group the subfolders into other subfolders based on their first letter For example, if you have * Customers

Outgoing Message Scripting

Anonymous (anonymous@undisclosed.example.com) — 2024-03-21T10:49:54+00:00

Outgoing Message Scripting Every time VPOP3 adds a message to the Outgoing mail queue, it runs a script called outmessage.lua. Scripts are stored as files in the VPOP3 directory in VPOP3 v6.6 and earlier, or managed through the Settings -> Scripts page in VPOP3 v6.7 and later.

Password Strength Checking Script

Anonymous (anonymous@undisclosed.example.com) — 2026-01-05T09:25:39+00:00

Password Strength Checking Script You can tell VPOP3 to enforce password strength checks by using a Lua script which performs the checks for you. The Lua script can be edited in Settings -> Scripts and is called passwordcheck.lua (in older versions of VPOP3 it is stored in a file called

Spamfilter Rule Weights

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spamfilter Rule Weights To edit the spamfilter rule weights, go to Settings -> Spamfilter -> General -> Rule Weights The VPOP3 spamfilter contains several rules which test for certain things, eg 'adult words', or entries in real-time blacklist databases, or whitelisted email addresses etc.

Spam Filter Rules: BulkScan

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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

Spam Filter Rules: ClearBag

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: ClearBag Statement ClearBag Version 2.2.1+ Purpose Clears all items from a 'bag' The ClearBag requires a bag name, in the format ClearBag Example The following example removes all values from the 'recipient' bag ClearBag recipient

Spam Filter Rules: CountMatches

Anonymous (anonymous@undisclosed.example.com) — 2025-06-06T08:12:37+00:00

Spam Filter Rules: CountMatches Statement CountMatches Version 2.3.13+ Purpose Counts the number of times a specific regular expression matches in a string CountMatches statements require a data parameter, a search value, and the name of the variable to place the count into, in the format

Spam Filter Rules: DNS

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: DNS Statement DNS Version 2.1.11+ Purpose Allows the script to perform an arbitrary DNS lookup, returning the result into a specified variable The DNS statement requires a type, hostname and variable name, in the format DNS

Spam Filter Rules: DNSBL

Anonymous (anonymous@undisclosed.example.com) — 2020-10-23T16:07:49+00:00

Spam Filter Rules: DNSBL Statement DNSBL Version 2.1.7+ Purpose Allows the script to perform a DNS blacklist lookup, returning the result into a specified variable The DNSBL statement requires a hostname, DNSBL zone and variable name, in the format

Spam Filter Rules: GetDecodedSection

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: GetDecodedSection Statement GetDecodedSection Version 2.1.11+ Purpose Returns a specified MIME section of a message into a variable, after processing any Base64 or Quoted-Printable encoding of the raw message data The GetDecodedSection

Spam Filter Rules: GetMD5

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: GetMD5 Statement GetMD5 Version 2.3.6+ Purpose Performs an MD5 hash on a string, and returns the result into the specified variable in hex encoded form The GetMD5 statement requires a string and variable name, in the format GetMD5

Spam Filter Rules: GetSectionEncoding

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: GetSectionEncoding Statement GetSectionEncoding Version 2.3.9+ Purpose Retrieves the MIME encoding method for the specified MIME section number, and returns the result into the specified variable The GetSectionEncoding statement requires a message section number and variable name, in the format

Spam Filter Rules: GetSectionMD5

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: GetSectionMD5 Statement GetSectionMD5 Version 2.3.6+ Purpose Performs an MD5 hash on a specified MIME section of the message, and returns the result into the specified variable in hex encoded form The GetSectionMD5 statement requires a message section number and variable name, in the format

Spam Filter Rules: GetUserGroup

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: GetUserGroup Statement GetUserGroup Version 2.4.5+ Purpose Checks if the specified user is assigned to a VPOP3 group, and returns the group name The GetUserGroup statement requires a username and variable name, in the format GetUserGroup

Spam Filter Rules: Goto

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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 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.

Spam Filter Rules: HTTPGet

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: HTTPGet Statement HTTPGet Version 2.3.7+ Purpose Enables the script to retrieve a web page The HTTPGet statement requires a url, headers variable name and content variable name, in the format HTTPGet

Spam Filter Rules: HTTPGetMD5

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: HTTPGetMD5 Statement HTTPGetMD5 Version 2.3.7+ Purpose Enables the script to retrieve a web page, returning an MD5 hash of its contents in hex encoded form The HTTPGetMD5 statement requires a url, headers variable name and MD5 hash variable name, in the format

Spam Filter Rules: HTTPPost

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: HTTPPost Statement HTTPPost Version 2.4.9+ Purpose Enables the script to post data to a web server The HTTPPost statement requires a url, data string, headers variable name and content variable name, in the format HTTPPost

Spam Filter Rules: IfInBag

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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 * All IfInBag statements must be followed by an

Spam Filter Rules: Redirect

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Redirect Statement Redirect Version 2.1.7+ Purpose Remove all original recipients, and send the message to the specified recipient (and optionally folder) Examples To redirect the message to the Postmaster user's inbox Redirect Postmaster

Spam Filter Rules: SendMessage

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: SendMessage Statement SendMessage Version 2.4.5+ Purpose Allows you to send a message The SendMessage statement requires a recipient, subject, message text and a currently unused options parameter, in the format SendMessage

Spam Filter Rules: SURBL

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: SURBL Statement SURBL Version 2.1.7+ Purpose Allows a SURBL lookup on the specified hostname or IP address in the specified SURBL zone, and returns the result into the specified variable The SURBL statement requires a hostname, SURBL zone and variable name, in the format

Spam Filter Rules: WinHTTPGet

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: WinHTTPGet Statement WinHTTPGet Version 2.4.9+ Purpose Enables the script to retrieve a web page using the WinINET functionality The WinHTTPGet statement requires a url, headers variable name and content variable name, in the format

Spam Filter Rules: ZipContents

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: ZipContents Statement ZipContents Version 6.7+ Purpose Enables the script to obtain the list of files contained in a ZIP attachment The ZipContents statement requires a message section number and bag name, in the format ZipContent

Spam Filter Rules: ZipContentsFull

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: ZipContentsFull Statement ZipContentsFull Version 6.7+ Purpose Enables the script to obtain the list of files contained in a ZIP attachment The ZipContentsFull statement requires a message section number and bag name, in the format

Spam Filter Rules: ZipCount

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: ZipCount Statement ZipCount Version 6.7+ Purpose Enables the script to obtain the number of files contained in a ZIP attachment The ZipCount statement requires a message section number and variable name, in the format ZipCount

User Routing Script

Anonymous (anonymous@undisclosed.example.com) — 2023-03-27T10:32:18+00:00

User Routing Script If there is a /user_redirect.lua script, this Lua script can override VPOP3's message routing options. You can edit this either in the Settings -> Scripts page in the settings, or via the 'Routing' tab in the user's settings in the VPOP3 administration console. This script affects how VPOP3 will handle how messages

Autoresponders / Out of Office

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Autoresponders / Out of Office VPOP3 has an autoresponder facility for sending automatic replies when a message arrives in a mailbox. This is often used for 'Out of Office' replies, but it is not limited to that use. To set an autoresponder, the administrator can edit the user and go to the

How to Backup VPOP3

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

How to Backup VPOP3 By default VPOP3 v3 and later will automatically perform a daily backup of the database into a file called DBBACK-x.DMP, where the backup file rotates on a weekly basis (DBBACK-0.DMP is Sunday's backup, DBBACK-1.DMP is Monday's backup, etc).

Accepting Incoming SMTP through a router

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Accepting Incoming SMTP through a router If your ISP is providing you with an SMTP mail feed (incoming SMTP) and you have VPOP3 connecting to the ISP through a router then you will probably need to modify the router configuration to allow this. Most routers' default configuration will only allow outbound connections (ie connections from the local network out to the Internet). If you need to accept incoming SMTP mail, then you need to tell the router to allow inbound connections on port 25 for …

Database Backup Failed

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Database Backup Failed VPOP3 version 3 and later will, by default, make a backup of the database used by VPOP3 into a file. This uses the PostgreSQL utility 'pg_dump' If an error occurs whilst running this program, VPOP3 will create a 'Database Backup Failed' error message to the administrator.

How to Forward Messages to an External Address

Anonymous (anonymous@undisclosed.example.com) — 2025-08-18T15:13:06+00:00

How to Forward Messages to an External Address There are two possible methods to forward messages to an external address: * Use this method if it is for a person who might want to receive their email whilst in the office and/or get the mail sent to an external address.

IMAP4 'Ghost Folders'

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

IMAP4 'Ghost Folders' 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 'subscribe' to folders - this means that you can hide folders by unsubscribing from them.

Handling mail for multiple incoming domains

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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 'aliases' If the domains are aliases of each other, for instance, you have 'mycompany.com' and 'mycompany.org', 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…

How to make VPOP3 re-download POP3 messages from the ISP

Anonymous (anonymous@undisclosed.example.com) — 2026-04-06T17:57:00+00:00

How to make VPOP3 re-download POP3 messages from the ISP If you have the VPOP3 Mail Collector setting Leave Mail On Server enabled, then VPOP3 will leave your messages on the ISP POP3 server for the specified number of days after downloading it. If, during this time, you want to make VPOP3 download those messages again, then you can do so.

Redirect message for a user if a sender is a particular email address

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Redirect message for a user if a sender is a particular email address Say you want messages addressed to 'user1' to be redirected to 'user2' if they came from customer@domain.com This is an unusual requirement, so there is no way to do it in VPOP3.

Repairing corrupted database

Anonymous (anonymous@undisclosed.example.com) — 2024-01-15T11:35:45+00:00

Repairing corrupted database With PostgreSQL (as with most high-end databases) the database system will automatically recover after power failures etc, if it can. If it can't then there is no manual 'repair' function, because the data cannot totally be recovered (or it would automatically have been recovered).

Restore a database backup

Anonymous (anonymous@undisclosed.example.com) — 2025-12-17T09:19:40+00:00

Restore a database backup By default VPOP3 makes a daily backup of the VPOP3 database to a file 'DBBACK-n.DMP' in the VPOP3 installation directory (it is possible to change this in the settings). These are cycled on a weekly basis so you will usually have the last seven days' worth of backups. These can be useful if the database gets damaged somehow.

Restricting the number of recipients sent to

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Restricting the number of recipients sent to Some ISPs set restrictions on the number of recipients that you are allowed to send in a certain time period, eg 50 messages per hour, or the number of recipients that you are allowed to send per message or per connection.

Restricting the number of messages sent

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Restricting the number of messages sent Some ISPs set restrictions on the number of messages that you are allowed to send in a certain time period, eg 50 messages per hour, or the number of messages that you are allowed to send per connection. Restriction of messages per connection

Some PCs cannot access VPOP3 when VPOP3 is connected to the Internet

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Some PCs cannot access VPOP3 when VPOP3 is connected to the Internet This error happens when you have multiple TCP/IP subnets on your network. The computers which are on different subnets from the VPOP3 computer will not be able to see VPOP3 whilst VPOP3 is connected to the Internet (through a dial-up connection). Whenever VPOP3 is offline, it will work correctly.

Use Download Rules for incoming POP3 message filtering

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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,

How to use the VPOP3 Status Monitor

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

How to use the VPOP3 Status Monitor The VPOP3 Status Monitor is a small program which displays a postbox icon (usually red) in the Windows notification area (usually at the bottom right of the screen - by the clock). This icon can be used for quick access to various VPOP3 facilities. Note that the Status Monitor is

Access Restrictions Internal Format

Anonymous (anonymous@undisclosed.example.com) — 2023-08-02T08:22:37+00:00

Access Restrictions Internal Format VPOP3 internally stores service IP Access Restrictions in its settings database using the following format to encode the multiple entries These are stored in the settings database as *ALLOWED*.DAT (using VPOP3SETTINGS GET *ALLOWED*.DAT will list them)

Address Book tab

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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.

Settings -> Admin Settings

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Settings -> 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.

Archive Script

Anonymous (anonymous@undisclosed.example.com) — 2023-03-25T23:33:31+00:00

Archive Script (from VPOP3 v6 onwards) Archive scripting lets you indicate whether full message content should be stored in the message archive. This could be used, for instance, for filtering out messages containing credit card details. The message headers will still be archived, along with the explanation text returned by the script.

Autoresponders - v3 and v4

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Autoresponders - v3 and v4 This section lets you define an autoresponder for a user. An autoresponder is a message which is sent back in response to a message which arrives in this user's mailbox. The Autoresponder Type can be set to None, Simple Autoresponder

Connections

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Connections In VPOP3 a Connection tells VPOP3 how to 'connect' to the Internet. VPOP3 supports up to 10 Connections, which can be either network connections or Dial-Up connections (using a modem) A Connection is linked to one Mail Sender and zero or more Mail Collectors.

Settings -> Diagnostics

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Settings -> Diagnostics The Diagnostics page allows you to enable, configure and disable various methods of diagnostic logging, within VPOP3. Log file overview By default, VPOP3 will keep two copies of most log files: * The current log file, with a

Groups

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Groups In VPOP3 a 'group' 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 'List' feature instead. The main function of Groups is to let you set certain user attributes for a whole group of users at once.

Lua SMTP MX Control

Anonymous (anonymous@undisclosed.example.com) — 2026-02-24T15:49:48+00:00

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 -> Scripts (or in the VPOP3 directory in VPOP3 v6.6 or earlier). Global Variables Starting with v8.8, the following global variables are defined:

Lua SMTP MX Server Rules

Anonymous (anonymous@undisclosed.example.com) — 2026-02-24T15:50:03+00:00

Lua SMTP MX Server Rules Every time VPOP3 checks for remote MX server for sending messages using direct MX sending, it runs a script called mxserverrules.lua which can be created/edited in Settings -> Scripts (or in the VPOP3 directory in VPOP3 v6.6 or earlier).

Lua SMTP Relay Control

Anonymous (anonymous@undisclosed.example.com) — 2025-08-14T09:24:55+00:00

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:

Quarantine tab

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Quarantine tab The Quarantine tab within VPOP3 webmail is where you view and manage messages that have been quarantined by VPOP3's spam filter. As you can see from the screenshot, unlike many of the other webmail tabs, it is not divided into multiple sections:

Send Admin Message

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Send Admin Message It is possible for administrator users to send a bulk email message to an entire group or list. To begin composing an email, go to the Administration Settings -> Users page, and click Send Admin Message. This should then open a window, which allows you to specify various options.

SMTP Direct Sender Settings

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

SMTP Direct Sender Settings Mail Connectors -> Mail Senders -> SMTP Direct Sender -> 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' mail servers. Separate multiple addresses with commas.

Signature Script

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Signature Script If you want more complex signatures on outgoing emails, rather than the static text/HTML you can define within VPOP3, then you can use a simple Lua script to define the signature. The Lua script is stored in a file called signature.lua

Spam Filter Rules

Anonymous (anonymous@undisclosed.example.com) — 2023-01-18T15:57:13+00:00

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.

Increase the spam score for certain recipients

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Increase the spam score for certain recipients This script is for the case where you want certain recipients to have a weighted score. For instance if you have users who have left and who mostly receive spam, but you don't want to reject their mail totally.

Spamrules example - increase spam score for long sender domain

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spamrules example - increase spam score for long sender domain This script is for the case where you to increase the spamminess of emails where the sender's email address contains a long domain. In this case we'll say if the sender's domain has 20 or more characters in the first section (between the @ and first .). Note that we do not necessarily recommend that you do this as it is not a very good indicator of spam, but it is something we've been asked for, so here it is.

Spamrules example - increase spam score if there are many links in the email

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spamrules example - increase spam score if there are many links in the email This script is for the case where you to increase the spamminess of emails where the email contains many links - in this case we'll say if the email contains 10 or more links. Note that we do not necessarily recommend that you do this as it is not a very good indicator of spam, and will probably catch a lot of newsletter type emails, but it is something we've been asked for, so here it is.

Spam Filter Rules: Rule names and weights

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Rule names and weights The script can designate names to refer to certain rules. This name is created using a DefineRule statement. If you the follow a statement by a word in square brackets, when that statement is actioned, VPOP3 will add the specified word to a list of 'matched conditions' which can be used in reporting.

Spam Filter Rules: AddBayesHam

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: AddBayesHam Statement AddBayesHam Version 2.1.7+ Purpose Adds the current message to the 'not-spam' (or 'ham') Bayesian database Example Add the message to the 'not-spam' database if score is less than 100 If ${Score} < 100 AddBayesHam EndIf

Spam Filter Rules: AddBayesSpam

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: AddBayesSpam Statement AddBayesSpam Version 2.1.7+ Purpose Adds the current message to the 'spam' Bayesian database Example Add the message to the 'spam' database if score is 100 or more If ${Score} >= 100 AddBayesSpam EndIf

Spam Filter Rules: AddBlackList

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: AddBlackList Statement AddBlackList Version 2.1.7+ Purpose Adds the specified data to the blacklist Example AddBlackList ${MailFrom}

Spam Filter Rules: AddHeader

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: AddHeader Statement AddHeader Version 2.1.7+ Purpose Allows you to add, replace or remove the specified header line in the message headers The AddHeader statement requires the full header line in one continuous string, in the format

Spam Filter Rules: AddNullAddress

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: AddNullAddress Statement AddNullAddress Version 2.2.1+ Purpose Temporarily adds an email address to VPOP3's configuration where the mail will be discarded AddNullAddress is intended for use to make 'pseudo' addresses, such as 'spam@' and 'notspam@' for the spam filter to process.

Spam Filter Rules: AddWhiteList

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: AddWhiteList Statement AddWhiteList Version 2.1.7+ Purpose Adds the specified data to the whitelist Example AddWhiteList ${MailFrom}

Spam Filter Rules: Break

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Break Statement Break Version 2.1.11+ Purpose Breaks out of a loop prematurely Example ForEach Recipient Rcpt IfMatch ${Rcpt} "/@spammer.com/i" ${Score} += 100 Break EndIf EndFor

Spam Filter Rules: Convert

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Convert Statement Convert Version 2.4.9+ Purpose Allows you to convert data from one form to another The Convert statement requires a data parameter, conversion method and variable name, in the format Convert

Spam Filter Rules: Copy

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Copy Statement Copy Version 2.1.7+ Purpose Sends a copy of the message to the specified recipient (and optionally folder) Examples To copy the message to the Postmaster user's inbox Copy Postmaster To copy the message to the Postmaster user's 'spam' folder

Spam Filter Rules: CopyBag

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: CopyBag Statement CopyBag Version 6.17+ Purpose Copies the contents of one bag into another bag The CopyBag statement requires an operator, “from bag” name and “to bag” name, in the format AddBag

Spam Filter Rules: DBDeleteTime

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: DBDeleteTime Statement DBDeleteTime Version 6.16+ Purpose Deletes records from the spam filter database based on their last update time The DBDeleteTime statement requires a component name, comparator and time value, in the format

Spam Filter Rules: DBInsert

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: DBInsert Statement DBInsert Version 6.16+ Purpose Inserts a record into the spam filter database The DBInsert statement requires a type, component name, key and value, in the format DBInsert

Spam Filter Rules: DBQueryOne

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: DBQueryOne Statement DBQueryOne Version 6.16+ Purpose Queries the spam filter database for a single record/aggregate The DBQueryOne statement performs a query on the spam filter database and returns a single value which is either the value of a record or an aggregate of several records.

Spam Filter Rules: DBUpdate

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: DBUpdate Statement DBUpdate Version 6.16+ Purpose Updates a record in the spam filter database The DBUpdate statement requires a component name, key, operator and value, in the format DBUpdate

Spam Filter Rules: DefineSetting

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: DefineSetting Statement DefineSetting Version 2.1.9+ Purpose Defines a generic setting, the default value and description The DefineSetting statement requires a name, default value and description, in the format DefineSetting "" ""

Spam Filter Rules: Escape

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Escape Statement Escape Version 2.3.6+ Purpose 'Escapes' the specified variable ready to pass as a regular expression The Escape statement should be called immediately before the variable, in the format Escape Example ${myvar} = "This costs $10.00" Escape myvar # ${myvar} is now "This costs \$10\.00"

Spam Filter Rules: GetRFC822Date

Anonymous (anonymous@undisclosed.example.com) — 2023-08-14T15:53:15+00:00

Spam Filter Rules: GetRFC822Date Statement GetRFC822Date Version 2.2.1+ Purpose Converts an RFC 822 format date field into the number of days elapsed since 1st January 1601 The GetRFC822Date statement requires a date in RFC 822 format and a variable name, in the format

Spam Filter Rules: If

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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:

Spam Filter Rules: IfLocalAddress

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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

Spam Filter Rules: Include

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Include Statement Include Version 2.1.7+ Purpose Including other files within the spam rules To include another file within the spam rules, insert a line saying ''Include '' There should not be any quotes around the filename to include, even if it contains spaces. Note that all files are within the same 'scope', so variables defined in one file will be visible within all subsequent included files.

Spam Filter Rules: Log

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Log Statement Log Version 2.1.11+ Purpose Allows you to write entries to the spamrules log file The Log statement lets you write a custom entry to the SPAMRULES.LOG file. This can be useful for debugging scripts. Example Log "Sender = ${MailFrom}"

Spam Filter Rules: Random

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Random Statement Random Version 2.5.2+ Purpose Generates a random number The Random statement requires a lower and higher numeric bound, and a variable to assign the result to, in the format Random *

Spam Filter Rules: Reject

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Reject Statement Reject Version 2.4.5+ Purpose Perform an SMTP 'Reject' on the incoming message The Reject statement requires an error code/text string, in the format Reject This will reject the current SMTP message with the specified SMTP result code. Use a 4xx error code (eg 450) to reject the message temporarily, or a 5xx error code (eg 550) to reject the message permanently.

Spam Filter Rules: RemoveBag

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: RemoveBag Statement RemoveBag Version 2.2.1+ Purpose Removes a specified value from a bag The RemoveBag statement requires a bag name and a value, in the format RemoveBag * If the value is found in the bag, it is removed

Spam Filter Rules: RemoveBayesHam

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: RemoveBayesHam Statement RemoveBayesHam Version 2.1.7+ Purpose Removes the current message from the 'not-spam' (or 'ham') Bayesian database Example Remove the message from the 'not-spam' database if score is 100 or more If ${Score} >= 100 RemoveBayesHam EndIf

Spam Filter Rules: RemoveBayesSpam

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: RemoveBayesSpam Statement RemoveBayesSpam Version 2.1.7+ Purpose Removes the current message from the 'spam' Bayesian database Example Remove the message from the 'spam' database if score is less than 100 If ${Score} < 100 RemoveBayesSpam EndIf

Spam Filter Rules: RemoveBlackList

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: RemoveBlackList Statement RemoveBlackList Version 2.1.7+ Purpose Removes the specified data from the blacklist Example RemoveBlackList ${MailFrom}

Spam Filter Rules: RemoveTags

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: RemoveTags Statement RemoveTags Version 2.2.1+ Purpose Converts an HTML string to its plain text equivalent The RemoveTags statement requires a variable name, in the format RemoveTags * HTML tags are removed *

Spam Filter Rules: RemoveWhiteList

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: RemoveWhiteList Statement RemoveWhiteList Version 2.1.7+ Purpose Removes the specified data from the whitelist Example RemoveWhiteList ${MailFrom}

Spam Filter Rules: Replace

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Replace Statement Replace Version 2.3.5+ Purpose Replaces specified text in the specified variable with new text Replace statements require a variable name, a search value and a replacement string, in the format Replace

Spam Filter Rules: *IFSUPPORT

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

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

Spam Filter Rules: *STOP

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: *STOP Statement *STOP Version 2.2.5+ Purpose Stops the parsing of the current spam filter script file The statements after the *STOP statement are not parsed, so will not cause syntax errors if they involve unrecognised commands.

Spam Filter Rules: StartDNS

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: StartDNS Statement StartDNS Version 2.2.1+ Purpose Begins an asynchronous DNS lookup in advance of the result being required in a subsequent DNS statement The StartDNS statement requires a type and hostname, in the format StartDNS

Spam Filter Rules: StartDNSBL

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: StartDNSBL Statement StartDNSBL Version 2.2.1+ Purpose Begins an asynchronous DNS blacklist lookup in advance of the result being required in a subsequent DNSBL statement The StartDNSBL statement requires a hostname and DNSBL zone, in the format

Spam Filter Rules: StartSURBL

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: StartSURBL Statement StartSURBL Version 2.2.1+ Purpose Begins an asynchronous SURBL lookup in advance of the result being required in a subsequent SURBL statement The StartSURBL statement requires a hostname and SURBL zone, in the format

Spam Filter Rules: Stop

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Spam Filter Rules: Stop Statement Stop Version 2.1.7+ Purpose Stop processing the spam rules Example # Statements Stop # The script has stopped processing before it gets to this line

User Manager Script

Anonymous (anonymous@undisclosed.example.com) — 2024-04-22T08:37:38+00:00

User Manager Script If you want people to be able to log in using a different username than their VPOP3 username (eg if you want them to be able to log in using an email address), then you can use the UserManager Lua script The Lua script is managed through the Settings → Scripts page in VPOP3 v8.0 and later and is called 'UserManager.LUA.

Virus Scan Filter Scripting

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Virus Scan Filter Scripting (Added in V6.17) The VIRUSSCAN.LUA script has a single function FilterResult This function is called for every virus that a VPOP3-integrated (eg VPOP3 AV or Sophos SAV Interface) detects. The function has the opportunity to 'filter' the virus detection so that VPOP3 will act as if the virus was not detected.

Webmail Status bar

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T10:45:49+00:00

Webmail Status bar The Status bar within VPOP3 webmail displays important information at a glance. [VPOP3 version 5.0 Webmail Status bar] User - At the far left, is a display to let you know which user is currently logged in. Version - After the username, there is an indication of the current VPOP3 version.