One Click Solution to Convert Outlook Files to Retrieve Data Again
Anti-Spam SMTP Proxy Server implements multiple spam filters
Sync Outlook with Google, SOGo or any other CalDAV / CardDAV server
Powerful Open Source Email Marketing app with analytics & segmentation
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
SaltOS, ERP, CRM, Business Management Suite, Josep Sanz Campderrós
HotelSoft1.2Acs is a free open source software for the Hotel actvity
Free Email Backup Software | Email Backup App for Android
Simple-to-use/-install issue-tracking system: web, REST, email, CLI
IGSuite is a web-ajax-based Integrated Groupware Suite
Open source e-mail tracker made with Flask, setup & run in 10 minutes
The first Open-Source high-performance MTA for high-volume senders
Python mail notifier for linux
software for email automation (newsletters, transaction mails, etc.)
Self-hosted newsletter app
Web and API based SMTP testing
Python API for Sendmail Milters.
Full SMTP/Mail server Appliance in 5 minutes