Email

Self-host your file storage, social network, and email server.

Organize and schedule your emails with tags.

Open-source groupware with calendaring, messaging, and contact management.

Combine messaging and email apps into one unified platform.

Python IMAP library for easy email handling.

Open-source email archiving solution for secure and efficient email management.

Secure password manager with built-in email alias generation and server.

Unofficial ProtonMail desktop client built with Electron.

All-in-one groupware solution for communication and collaboration.

Easily deploy a fully configured home server with email, VPN, and websites in under an hour.

Preserve your emails indefinitely with open-source email archiving.

Open-source email and collaboration platform with rich features and integrations.

Manage mailing lists and newsletters efficiently.

Create unlimited unique inboxes to organize your emails effortlessly.

A free, open-source email client for managing your communications efficiently.

A customizable and beautiful email client for seamless email management.

Email address and MIME parsing library.

A simple and powerful email client for efficient communication.

A powerful terminal-based email client for advanced users.

Fast and user-friendly email client for seamless communication.

Email archiving with powerful search and eDiscovery capabilities.

All-in-one Free/Libre/Open Source enterprise software suite.

Create responsive emails with ease using MJML's semantic syntax.

Search all your emails and documents privately from one place.

All-in-one collaboration suite for seamless communication and productivity.

Extensible desktop mail app built on the modern web.

Send encrypted emails to blockchain addresses.

Curated collection of free and open software tools.

Effortless Gmail/SMTP client for sending emails with Python.

Fast and smart email client for Mac and iOS.

A powerful and elegant email client for managing your inbox.

Extensible high-performance mail delivery framework.

Modern, all-in-one mail server with JMAP, IMAP4, and SMTP support.

Multichannel notification server for seamless communication.

Open-source email marketing and newsletter management software.

Archive and manage emails from multiple accounts efficiently.

Fast and powerful email client for Mac and iOS.

Open-source scheduling tool integrated with Gmail for easy appointment booking.

A fast and beautiful email client for efficient communication.

Send RSS feed updates straight to your email inbox.

Secure email with PGP and AI for Mac and iPhone.

Easily share screenshots through QQ Mail.

Secure, GPG-enabled mailing list manager with resending features.

Quickly email notes to yourself on Apple devices with one tap.

Simple, full-featured mail server container for production use.

Unified feed reader for managing multiple email accounts.

Collaborative CRM and groupware for enterprise productivity.