SMTP email proxy and relay server
A simple and fast cross-platform solution to send mass emails.
secure, reliable, fast MTA
Python API for Sendmail Milters.
Full SMTP/Mail server Appliance in 5 minutes
An unofficial web console to administer Apache James 3 server
Simple web interface for Postfix domains, accounts, aliases
The free cross-platform antivirus software tool-kit
Ciphermail email encryption gateway (S/MIME, OpenPGP, PDF encryption)
a simple to manage mta
CRM114 milter for sendmail
QSF milter for sendmail
PHP powerful tool for sending e-mails fast and easily