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eXtremail is a SMTP/POP3/IMAP4 mail server developed for Linux and Solaris systems.

sendxmpp is a command-line tool which makes sending xmpp (jabber) messages as easy as sending mail with the "mail" command. This mak...

ESMTP is a user configurable relay-only MTA with a sendmail-compatible syntax, based on libESMTP and supporting the AUTH (including the CRAM-MD5 and ...

Visual Synapse are component wrappers around the Synapse tcp/ip libraries. It wraps a few common internet protocols, like HTTP, UDP, DNS, ICMP, TCP an...

vthrottle is an implementation of an SMTP throttling engine for Sendmail servers, based upon M. Williamsons mechanisms, as described in his 2003 Useni...

Synonym is a flexible Milter-based extension running on top of Sendmail allowing mail administrators to copy SMTP traffic to a specified mailbox, and ...

netqmail is a community-assembled distribution of qmail. It includes the untouched source along with a single combined patch.

GreenMail is an intuitive and easy-to-use test suite of email servers for testing purposes. Supports SMTP, POP3, IMAP with SSL socket support, and con...

A proxy smtp server with 1. Use of user-selectable DNSRBL lists to reject mail with customised rejection messages 2. Spam trap addresses to identify d...

FetchYahoo is a Perl script that downloads mail from a Yahoo! account to a local mail spool. It downloads all parts and attachments and then deletes m...