Take back control of your email with this mail server in a box
Disposable webmail server (similar to Mailinator) with built in SMTP
mailcow: dockerized
Mail hosting made simple
Insular email distribution - mail server as Docker images
Fast and easy-to-use webmail front-end for your existing mail server.
Zentyal is a Linux Small Business Server
Simple, modern & fast web-based email client
an 'auto-reply' bot for your mail server
CheckeredFlag is a super simple mail server.
An unofficial web console to administer Apache James 3 server
To synch and encrypt all sorts of data across different sources
Host a personal portfolio in Google App Engine- Python
javascript to convert thunderbird/seamonkey filters to sieve rules
Webkosa is the open source edition of Webcrossing.
Linux Mail Server with Calendaring and IM
A lite version of mailinator for developer use