Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.
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:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).
mailcow: dockerized - 🐮 + 🐋 = 💕
Insular email distribution - mail server as Docker images
A cross-platform .NET library for IMAP, POP3, and SMTP.
✉️ Composable all-in-one mail server.
Event-driven networking engine written in Python.
📥 An IMAP library for Go clients and servers
Mail-Archiver is a web application for archiving, searching, and exporting emails from multiple accounts. Featuring folder sync, attachment support, mailbox migration and a dashboard.
Bichon – A lightweight, high-performance Rust email archiver with WebUI
Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and EWS (Exchange Web Services)
Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 80 MB of RAM.
Privacy-focused encrypted email for everyone. All-in-one alternative to Gmail + Mailchimp + Sendgrid.
Fake Protocol Server
Dovecot mail server
Object-oriented, fully tested PHP IMAP library
DavMail POP/IMAP/SMTP/CalDAV/CardDAV/LDAP Exchange and Office 365 Gateway - Synced with main subversion repository at
mailio is a cross platform C++ library for MIME format and SMTP, POP3, IMAP protocols. It is based on the standard C++ 17 and Boost library.
Send and receive emails easily, fluently, with one line of code for each operation.
IMAP or SMTP honeypot written in Golang