PSCS Wiki
https://wiki.pscs.co.uk/
2026-05-06T12:42:21+00:00PSCS Wiki
https://wiki.pscs.co.uk/
https://wiki.pscs.co.uk/_media/wiki:dokuwiki.svgtext/html2023-08-16T07:48:01+00:00Anonymous (anonymous@undisclosed.example.com)POP3 Client Lua Scripting
https://wiki.pscs.co.uk/reference:lua_pop3_client_script?rev=1692172081&do=diff
POP3 Client Lua Scripting
The POP3 Client Lua Script is called POP3CLT.LUA and is edited in Settings -> Scripts. This script is called whenever VPOP3 runs a POP3 session to download messages from a remote POP3 server.
VPOP3 will call the following Lua functions in the script at the following times:text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Mappings
https://wiki.pscs.co.uk/reference:mappings?rev=1542192349&do=diff
Mappings
In VPOP3, Mappings are a way of explicitly linking an email address to a user or list. They can also be used to indicate that an email address is remote, even though it would otherwise appear to be a local email address.
In other email servers, a similar feature may be called 'aliases'text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)POP3 Mail Collection
https://wiki.pscs.co.uk/reference:pop3_collection?rev=1542192349&do=diff
POP3 Mail Collection
POP3 Mail Collection is when VPOP3 will collect mail from an external POP3 mailbox - for instance, from an Internet Provider.
POP3 General
This page tells VPOP3 how to collect mail.
* POP3 Server Address - this is the name (or IP address) of the POP3 server from which you want VPOP3 to collect mailtext/html2026-02-24T15:49:48+00:00Anonymous (anonymous@undisclosed.example.com)Lua SMTP MX Control
https://wiki.pscs.co.uk/reference:lua_smtp_mx_control?rev=1771948188&do=diff
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:text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Misc -> Advanced Tab
https://wiki.pscs.co.uk/reference:misc_advanced?rev=1542192349&do=diff
Misc -> Advanced Tab
Settings -> Misc Settings -> 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.text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Spam Filter Rules: GetAddressType
https://wiki.pscs.co.uk/reference:spamrules_statement_getaddresstype?rev=1542192349&do=diff
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 formattext/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Message Archive -> General
https://wiki.pscs.co.uk/reference:archive_general?rev=1542192349&do=diff
Message Archive -> General
Settings -> Message Archive -> General Tab
Archive Messages
If the Archive Messages box is checked, then VPOP3 will archive incoming and outgoing messages.
Main Archive Store Directory
You can set the message archive store to any directory accessible by the VPOP3 service. Enter the path in thetext/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Import Users From File
https://wiki.pscs.co.uk/reference:import_users_from_file?rev=1542192349&do=diff
Import Users From File
VPOP3 supports the importation and exportation of users, via a CSV file (see for a specification of the CSV file format).
NOTE: This process is not designed to provide a complete backup of user data, nor is it intended to facilitate moving VPOP3 to a new computer. Instead, see the following relevant pages:text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Spam Filter Rules: IfMatch
https://wiki.pscs.co.uk/reference:spamrules_statement_ifmatch?rev=1542192349&do=diff
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 formattext/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Connections
https://wiki.pscs.co.uk/reference:connections?rev=1542192349&do=diff
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.text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Settings -> Diagnostics
https://wiki.pscs.co.uk/reference:diagnostics?rev=1542192349&do=diff
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 atext/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Lists
https://wiki.pscs.co.uk/reference:lists?rev=1542192349&do=diff
Lists
The Lists section in VPOP3 lets you view and manage the various types of 'List' which VPOP3 supports
* Distribution Lists
* Mailing Lists
* Forwardings
* ODBC Mailing Lists
* Groups
Using a list
A list will contain zero or more 'members' (usually email addresses) which can be messaged all at once. To send a message to all the members of a list, you will usually send an email to the listname at a valid domain.text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)ListServer Commands
https://wiki.pscs.co.uk/reference:listserver_commands?rev=1542192349&do=diff
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.text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Settings -> Local Mail -> General
https://wiki.pscs.co.uk/reference:local_mail_general?rev=1542192349&do=diff
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 fromtext/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)LogDB.Recipients table
https://wiki.pscs.co.uk/reference:logdb_recipients?rev=1542192349&do=diff
LogDB.Recipients table
The LogDB.Recipients table contains a record of the recipients for messages logged by VPOP3. A message may have one or more recipients
Columns
* rcptid - this is a bigint sequential value which identifies the recipient uniquely in the databasetext/html2026-02-24T15:50:03+00:00Anonymous (anonymous@undisclosed.example.com)Lua SMTP MX Server Rules
https://wiki.pscs.co.uk/reference:lua_smtp_mx_server_rules?rev=1771948203&do=diff
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).text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Mail Connectors
https://wiki.pscs.co.uk/reference:mail_connectors?rev=1542192349&do=diff
Mail Connectors
Mail Connectors tell VPOP3 how to send and receive mail from the outside world, or other mail servers. This page lets you set:
* Connections - how VPOP3 connects to the outside world
* Mail Collectors - how VPOP3 collects mail from remote mail servers
*text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Misc -> DNS Tab
https://wiki.pscs.co.uk/reference:misc_dns?rev=1542192349&do=diff
Misc -> DNS Tab
Settings -> Misc Settings -> 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.text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)Route incoming POP3 mail by parsing message headers
https://wiki.pscs.co.uk/reference:route_by_parsing_message_headers?rev=1542192349&do=diff
Route incoming POP3 mail by parsing message headers
This routing method is generally used if you have a catch-all or 'multi-catch' mailbox with your Internet provider. With this method, VPOP3 will look at the To/Cc and other fields in the message headers to try to work out who the message is for. If the recipient is not listed in the headers (eg for BCCd mail) it may not be able to automatically detect who the message is for.text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)SMTP Direct Sender Settings
https://wiki.pscs.co.uk/reference:sender_direct_settings?rev=1542192349&do=diff
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.text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)SMTP Service -> Advanced Tab
https://wiki.pscs.co.uk/reference:smtp_advanced?rev=1542192349&do=diff
SMTP Service -> Advanced Tab
Services -> SMTP Server -> Advanced Tab
Refuse SMTP Connections from
This setting should be rarely needed, and should be normally left blank. It is here for historic purposes.
If you put some text in this box, then VPOP3 will refuse any SMTP connections from clients whose 'HELO'/'EHLO' command data contains the text specified here as a substring. Eg, if this setting is set to '.myisp.com', then VPOP3 would refuse SMTP connections from any client which sends the c…text/html2018-11-14T10:45:49+00:00Anonymous (anonymous@undisclosed.example.com)SMTP Server -> IDS/IPS
https://wiki.pscs.co.uk/reference:smtp_ids_ips?rev=1542192349&do=diff
SMTP Server -> IDS/IPS
The IDS/IPS tab lets you set logging and automatic blocking parameters for the IDS (Intrusion Detection System) and IPS (Intrusion Prevention System) component of the SMTP server.
SMTP servers are regularly attacked, both by incoming mail attacks (spam/viruses etc) and relay attacks (by spammers and other malware distributors trying to send mail through them). Because of this, there is a system in VPOP3 which will track attack attempts on the SMTP service and can automat…