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POP3VScan is a transparent POP3-Proxy with virus-scanning capabilities. This means that all your POP3-Clients in the Network can't fetch mails from the internet without that POP3VScan have scanned it. If a virus has been found the mail is replaced with a notification and the original (infeceted) version is stored on the harddisc. Transparent means, that neither the client nor any of the used POP3-servers has to be configured.

Modular Python Postfix Policy Server Modular Python Postfix Policy Server is tool for extending Postfix checking capabilities. It uses Postfix access policy delegation (http://www.postfix.org/SMTPD_POLICY_README.html) to check incoming SMTP request and accept or reject it according provided data. It can reduce mailserver load with rejecting incorrect mail during SMTP connection. It was made with stress to height reliability and performance by providing caching of required data and results.

This software block SMTP sessions used by e-mail worms and viruses on the NA(P)T router. It depends on netfilter framework of Linux, or ipfw on FreeBSD. It acts like proxy, intercepting outgoing SMTP connections and scanning session data on-the-fly. When messages is infected, the SMTP session is terminated. It's to be used (mostly) by ISPs, so they can eliminate infected hosts from their net work, and (preferably) educate their users.

This extension will display the current status of your IMAP quota in thunderbird's statusbar and will warn you when you reach a configurable limit. It only works with IMAP quotas and servers advertizing the quota status via IMAP (the IMAP GETQUOTA command). Some mail servers have disk quotas and will send email when your mailbox reach its quota. That's not a real IMAP quota system and the imap server might not advertize it.

The svnmailer is a tool, which is usually called by a subversion hook to submit commit notifications in various ways (at the moment: mail via SMTP or a pipe to a sendmail like program, news via NNTP, CIA live tracker notification via XML-RPC). It is derived from the original mailer.py distributed with subversion, but supposed to be much more consistent, better extensible and to have much more features. Have a look at the documentation for further details

vbsfilter will rename VBS and SHS attachments to .txt, thus rendering them harmless. Sendmail 8.10 introduced a new feature called the milter library, which provides filtering callbacks to a user-level program, which in turn can provide a "Yes"/"No"/"I haven't seen enough yet" answer to the question: Can sendmail allow this mail to be delivered? Sendmail is a trademark of Sendmail, Inc. LICENSE: GPL2

VMailMgr (short for Virtual MAIL ManaGeR) is a package of programs designed to manage multiple domains of mail addresses and mailboxes on a single host. It co-operates with qmail for mail delivery and program control. It features: * A password checking interface between qmail-popup and qmail-pop3d which replaces the usual checkpassword, as well as an authentication module for Courier IMAP, that provide access to the virtual mailboxes by one of three methods: o IP-based virtual server access (invisible to the POP3 user) o username-based access (username-virtualuser) o hostname-based access (virtualuser@virtual.host or virtualuser:virtual.host) * CDB-based password tables to speed up access for domains of any size. * Tools to setup a virtual domain, add and delete individual virtual users and aliases, and to change passwords. CGI programs to accomplish the * above tasks from a set of web pages. * A native PHP library to complement or replace the CGIs. * A daemon process that securely directs the operation of the CGIs and PHP code. * A separate delivery agent that automatically deals with any address inside a virtual domain from a single .qmail-default file.

CRM114 is a system to examine incoming e-mail, system log streams, data files or other data streams, and to sort, filter, or alter the incoming files or data streams according to the user's wildest desires. Criteria for categorization of data can be by satisfaction of regexes, by sparse binary polynomial matching with a Bayesian Chain Rule evaluator, or by other means. Accuracy of the SBPH/BCR classifier has been seen in excess of 99 per cent, for 1/4 megabyte of learning text. In other words, CRM114 learns, and it learns fast.

OpenDMARC is an open source implementation of Domain-based Message Authentication, Reporting & Conformance, or DMARC. It builds on the successes of technologies such as DomainKeys Identified Mail (DKIM) and the Sender Policy Framework (SPF) to create an infrastructure that enforces policy on domain names that are visible to end users, and creates a feedback framework for identifying and tracking fraudulent use of domain names in email. It includes a library for handling DMARC record parsing, a database schema and tools for aggregating and processing transaction history to produce DMARC reports, and a filter that ties it all together with an MTA using the milter protocol.

Email::Sender replaces the old and sometimes problematic Email::Send library, which did a decent job at handling very simple email sending tasks, but was not suitable for serious use, for a variety of reasons. Most users will be able to use Email::Sender::Simple to send mail. Users with more specific needs should look at the available Email::Sender::Transport classes. Documentation may be found in Email::Sender::Manual, and new users should start with Email::Sender::Manual::QuickStart. This module provides a very simple, very clean, very specific interface to multiple Email mailers. The goal of this software is to be small and simple, easy to use, and easy to extend.