Free mailer software for linux

Postfix project is Wietse Venemas mailer that started life as an alternative to the widely-used Sendmail program.

Postfix attempts to be fast, easy to administer, and secure, while at the same time being sendmail compatible enough to not upset existing users. Thus, the outside has a sendmail-ish flavor, but the inside is completely different.

amavisd-new is a high-performance and reliable interface between mailer (MTA) and one or more content checkers: virus scanners, and/or Mail::SpamAssassin Perl module. amavisd-new is written in Perl, ensuring high portability, reliability and maintainability. It talks to MTA via (E)SMTP or LMTP protocols, or by using helper programs. No timing gaps exist in the design, which could cause a mail loss.
It is normally positioned at or near a central mailer, not necessarily where users mailboxes and final delivery takes place. If looking for a per-user and low-message-rate solution to be placed at the final stage of mail delivery (e.g. called from procmail or in place of a local delivery agent), there may be other solutions more appropriate.
When calling of Mail::SpamAssassin (SA) is enabled, it calls SA only once per message regardless of the number of recipients, and tries very hard to correctly honour per-recipient preferences, such as pass/reject, check/nocheck, spam levels, and inserting spam-related mail header fields.
amavisd-new benefits from the use of Perl module Net::Server, which offers a fast pre-forked multichild process control. amavisd-new provides rfc2821-compliant SMTP server, rfc2033-compliant LMTP server, SMTP client, and generates rfc3462/rfc3464-compliant (ex rfc1892/rfc1894) (non-)delivery status notifications.
This makes it suitable for mail anti-virus and/or anti-spam checking on a busy mail gateways that care for reliability and standards compliance.
amavisd-new grew out of amavisd(-snapshot) (which in turn is a daemonized version of amavis-perl), but through three years of development turned into a separate product, hardly resembling its origin. The code is several times the size of its predecessor, yet faster in throughput, richer in features, compliant to standards, includes optional support for spam detection, and makes virus scanning optional and easier to adjust/extend. Compatibility with helper programs from amavisd(-snapshot) is retained.
All modifications since the original amavisd done by Mark Martinec, with contribution of ideas, patches and reports from the amavis-user mailing list community and individuals.
Enhancements:
- Logging to SQL in a Milter setup was fixed.
- Message are saved only once when an archival quarantine is co-situated with other quarantines.
- Statistics counters are now available for cases where a pen pals feature has prevented a mail message from being blocked, allowing assessing usefulness of pen pals and facilitating adjusting of SA rules to minimize false positives.
- Incorporating additional configuration files has been made easier by a new routine include_config_files.
- A workaround for a crashing altermime has been provided.
- Two AV entries were updated.
- Documentation has been updated.

KMail Power Tools is meant to be a suite of enhancements to KMail and may be other mail user agents.
It is currently composed of only one (perl) script that acts as a filter (take input from stdin, outputs the modified mail to stdout), adds dialog boxes to kmail, and allows the user to:
- remove all attachments from an email (no user interaction),
- remove selectively attachments, after asking the user,
detach (i.e. save then remove) any attachment to a directory chosen by the user,
- hence reducing the size of your mailbox, while allowing you to backup important attached files.
All these actions are logged within a sentence in the mail body (see below).
Note: removing and detaching is already supported by Thunderbird, but my favourite mailer program is KMail, then...
How it works
KMail allows the definition of filters (like any other email program), but you can define filters:
- which are launched manually,
- which can be programs reading your email on stdin and outputing the result on stdout (or "pipe through").
So I had the idea to use this in order to enhance KMail, and allow it to remove and detach attachments: kmailpt will read and interpret the email (thank you Perl MIME::Parser), then depending on the command line switches, popup a dialog box to ask the user for a directory where to save attachments, and ask him which attachment to remove/detach (thank you Kdialog!).
Also, the sentence "[Attachment removed by jice (26/02/2007 20:33:01): bill.zip]" will be added to the mail body. When you detach an email, it will add a similar sentence, and if the mail body is html, you will even get a link to the new location of the file: "[Attachment saved by jice (26/02/2007 20:36:17) to heavenly.gif]", on which you can even click in order to view the detached file. For text/plain messages, the sentence will be something like: "[Attachment saved by jice (26/02/2007 20:36:17) to file:///home/jice/Images/heavenly.gif]" (unfortunately, although kmail renders http:// or ftp:// urls as links, file:// are not (yet?) - I should enter a bug on bugs.kde.org for this...).
Should you want to know the currently available command line switches, here is the help:
Usage: kmailpt [options]
kmailpt takes an email on stdin, performs actions based
on this mail, then output an email on stdout.
Without any option, it will remove any file attached.
Options:
-d detach the attachments (save and remove)
-q ask which attachment to remove
-h prints this help

POE::Component::Client::SMTP is a Perl module for asynchronous mail sending with POE. Thus your program isnt blocking while busy talking with an (E)SMTP server.

SYNOPSIS

Warning! The following examples are not complete programs, and arent designed to be run as full blown applications. Their purpose is to quickly introduce you to the module.

For complete examples, check the eg directory that can be found in the distributions kit.

A simple example:

# load PoCoClient::SMTP
use POE::Component::Client::SMTP;
# spawn a session
POE::Component::Client::SMTP->send(
From => foo@baz.com,
To => john@doe.net,
Server => relay.mailer.net,
SMTP_Success => callback_event_for_success,
SMTP_Failure => callback_event_for_failure,
);
# and you are all set ;-)
A more complex example:
# load PoCoClient::SMTP
use POE::Component::Client::SMTP;
# spawn a session
POE::Component::Client::SMTP->send(
# Email related parameters
From => foo@baz.com,
To => [
john@doe.net,
andy@zzz.org,
peter@z.net,
george@g.com,
],
Body => $email_body, # heres where your message is stored
Server => relay.mailer.net,
Timeout => 100, # 100 seconds before timeouting
# POE related parameters
Alias => pococlsmtpX,
SMTP_Success => callback_event_for_success,
SMTP_Failure => callback_event_for_failure,
);
# and you are all set

Vacation is a Horde module for managing user e-mail "auto-responders" or "vacation notices". It works via a local vacation program which must be installed and functioning on the server. It supports vacation programs using the .forward-style forwarding mechanism supported by several popular mailers.

Right now, Vacation provides fairly complete support for managing .forward style vacation notices on Sendmail or Courier mail based systems via an FTP transport. It also has some support for LDAP, Qmail, and Exim SQL based servers.

Vacation is part of a suite of account management modules for Horde consisting of Accounts, Forwards, Passwd, and Vacation.

Vallheru is a turn-based, fantasy MMORPG written in PHP and MySQL (but may work with many other databases) with Smarty Template Engine, ADOdb, and PHP Mailer.
It is based on Gamers-Fusion 2.5 with many modifications in security, speed, and features. Vallheru is currently available only in Polish.
Whats New in 1.3 Beta Development Release:
- This version contains many changes in the game interface making it simpler to mine and explore forests and mountains.
- Some new features were added, such as the ability for players to add their own links to the menu and to report bugs while in the game.
- Additionally, this release has a new quest, a few changes in game mechanics (especially alchemy and mage items and spells).
- For administrators, some security and normal bugs were fixed, some code optimization was done, and new versions of third-party software are used.
Whats New in 1.0.9 Stable Release:
- BUG,train.php: fixed bug with train condition
- BUG,languages/pl/checkexp.php: fixed bug in text
- BUG,landfill.php, bank.php, outposts.php, tribes.php, house.php, tribearmor.php, tribeware.php, includes/head.php: fixed possible integer overflow

tidyup-mail software is especially useful for russian/ukrainian/belarusian users but however can help those who reads mail from people that uses such brain-damaged web-mailers as yahoo mail.

Fatigue with xterm when reading mail from mutt? Tired to press "Do Full reset" every time when terminal becames full of garbage? This program is for you! It removes unsafe characters for email & makes xterm happy!

Note that all documentation comes in russian language. Check for your local russian hacker.