Open Source Unix Shell Email Software for Linux

Untangle is a Linux-based network gateway with pluggable modules for network applications like spam blocking, web filtering, anti-virus, anti-spyware, intrusion prevention, bandwidth control, captive portal, VPN, firewall, and more. Visit http://untangle.com

Liberté Linux is a secure, lightweight, and easy to use Gentoo-based Linux distribution intended as a communication aid in hostile environments. Liberté installs on a USB key, and boots on any computer or laptop.

Highly scalable/configurable Messaging Platform allowing users in a domain to be distributed on multiple hosts, has multiple queues. Provides virtual domains/users in MySQL. Modern MSP class qmail replacement with ESMTP, POP3/IMAP, QMTP, QMQP support

MailCleaner is no longer maintained. It will return soon in another form. [antispam] MailCleaner is an anti-spam / anti-virus filter SMTP gateway with user and admin web interfaces, quarantine, multi-domains, multi-templates, multi-languages. Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready. MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet. It includes a complete GNU/Linux OS and a graphical web interface for user and administrative access. It comes in the form of virtual machine templates.. - fully compatible with any SMTP mail server (Exchange, Zimbra, O365,...) You can install now MailCleaner within the following virtual environments: qcow2 (KVM, Proxmox, OpenStack, Xen) ova (OVA, VMware ESXi, VMware Workstation, Fusion) vhd (Asure, VirtualPC) vhdx (Hyper-V) AMI (Amazon) Dedicate a server to MailCleaner, and you will have a working professional mail filter in le

An advanced qmail distribution based on qmail-sql which has SMTP, SMTPS, POP3, POP3S, IMAP, IMAPS services, a content scanner, spoofing protections, SMTP AUTH support, SMTP-after-POP/IMAP, PHP5 API, SPF support and much more...

Faces - a Gtk+ program for monitoring a list (typically mail incoming messages) visually. It supports IMAP and POP mailboxes. There is a huge collection of picons (personal icons) that can be used in conjunction with the faces program.

AMaViS is a script that interfaces a mail transport agent (MTA) with virus scanners.

SpamSnake/mHost is a open source based spam filtering appliance. Its primary goal is to provide a very flexible platform from which to implement current and future open spam filtering solutions enterprise and small networks.

ISPMan is a system to design massive ISPs using LDAP as the backend. ISPMan provides a web front end and a command line interface to create virtual domains and manages users, dns information, email infos and httpd setup data for these vhosts.

BASH script to synchronize MS Active Directory or Global Catalog with Sendmail used for relay.

RelaxBSD is a LiveCD in Traditional/Simple Chinese which is based on FreeBSD. It's also very easy to install into your hard disk and you can use it as a desktop OS.

Start/Stop the mail processes as needed, allowing your Syno to hibernate (sleep) in the quiet hours. Only to be used with Mail Station polling external mail server(s), i.e. NOT when you run Mail Server with own domain (because the server should keep running all the time then). Still, you can use Mail Server just as IMAP server and SMTP relay. Mail Relaxer is not intended to be used with Zarafa. Credits for the original idea go to Tobi "jahlives" from German Synology forum.

This is an email server in a box. Using ldap authentication for imap, pop3, smtp, and SSL/TLS versions of each. Includes web user-interface, web administration, web filters. Installs on top of RedHat in under 20 minutes by running one script.

A small SMTP Server that is easy to use and allows for virus and SPAM checking.

Program to automate the backup of the MySQL database & file directory, and send the backup data files to an offsite destination for safe storage through email. Works with Joomla!, Mambo, PostNuke, WordPress & etc. See http://ecommerce.matrix-e.com NO

ESVA (E-Mail Security Virtual Appliance) is a pre-built and semi-configured email scanning appliance that will run on VMware Workstation, Server, Player or ESX Server.

An IMAP-Management web interface for use with courier imap , procmail and any mta that delivers mail through procmail.

LESP-CEL is a small shell script program to run shell commands trough e-mail messages. It is flexible enough to allow cel phones to use it. Remote access to Gnu/Linux Servers usind mobile devices.

LIMeTool (pronounced like the fruit), is intended to be a simple and easy interface for managing accounts on an integrated Sendmail/LDAP/Cyrus IMAP installation. It's written in PHP and is realitively easy to configure and expand.

An antivirus software for email server that filter mails with dangerous attachment. It works in concatenation with procmail (sw by van den Berg). Don't need a database of signature because just don't permit executable attachments.

It's a supporting service for Nagios, which enables the Nagios Admin {& Contact.cfg's Moderator} to ACK any Alert/Notification mailed to them by just forwarding that mail to a GMail-id owned by them. One ID can be used for multiple Nagios Servers.

The purpose of this project, is to provide an open source replacement for all of Microsoft Exchange functionality. The product is delivered as an installable system that is fully functional and pre configured for use.

A daemon that provides a method to track generic POP3 or IMAP logins and then email (in future:also block) the user if they exceed the number of accesses per given minutes allowed.

Rav Antivirus Log Analysis Kit is a collection of scripts that parse the RAV logs and insert the data into a database. Also included is a php front-end that will allow the display of this information.