High performance, self-hosted, newsletter and mailing list manager
Universal server
C library for sending e-mail (with attachments) from C/C++
Python mail notifier for linux
Automatically generate Outlook signatures based on templates and LDAP.
JavaScript/XML engine for Apache
An Asynchronous Pipelined Java client for Redis
A Powerful PHP bulk email sending script with smtp support.
An easy-to-use anti-spam email gateway
Mail Alert Simple Mailer
Wrappers around msmtp for use as queueing MTA with extra features
Synology DSM installable package for Baïkal CalDAV & CardDAV server
Synology package to hibernate while running Mail Station & Server
commandline multiclass email and text filter
A PHP sieve library
Allows you to submit events to an RSS feed via rest api (http post)
MOX Bulk Email Sender is free and powerful bulk email sender script