Professional email for individuals and teams. Mailflare is a self-hosted email inbox for custom domains, built on Cloudflare.

Receive, send, search and organize email for your own domains from one fast, private workspace. No ad profiles. No mystery servers.

• Mailflare @ GitHub.

A self-hosted email client with an AI agent, running entirely on Cloudflare Workers.

Agentic Inbox lets you send, receive, and manage emails through a modern web interface -- all powered by your own Cloudflare account. Incoming emails arrive via Cloudflare Email Routing, each mailbox is isolated in its own Durable Object with a SQLite database, and attachments are stored in R2.

All your email. One beautiful home. Self-Hosted Unified Email.

MailFlow is a self-hosted, open-source webmail client. Connect Gmail, iCloud, Outlook, and any IMAP account — then read, search, and reply from one fast, clean browser interface you control completely.

• MailFlow @ GitHub.

Related contents:

• You should self-host your mail server @ Christian Haschek's blog.

Instant webmail for any email provider. Email, calendar, contacts, and storage

Your open-source workspace , perfectly synced and beautifully integrated.

• Kurrier @ GitHub.

Related contents:

• You should self-host your mail server @ Christian Haschek's blog.

Modern Webmail Client for Stalwart Mail Server.

Webmail built for the 21st Century. A modern, self-hosted email client for Stalwart Mail Server powered by the JMAP protocol. Email, calendar, contacts and files. Fast, private, and open source.

• Bulwark WebMail @ GitHub.

The free and open source email and collaboration software .

• Carbonio Mailbox @ GitHub.

Related contents:

• Comment installer Carbonio CE - Votre propre Google Workspace 100% libre en 10 étapes @ Korben :fr:.

All your E-mail, from all your accounts, in one place

Cypht (pronounced "sift") is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into one. And it's also a news reader.

Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and EWS (Exchange Web Services)

• Cypht @ GitHub.

Simple, modern & fast web-based email client.

Mobile booting with ~138 KB download (using Brotli) and up to 99% performance grade by Lighthouse. This is a fork of the much appreciated RainLoop, but with massive changes to be compatible with (mobile) browsers of 2020 and newer.

• SnappyMail @ GitHub.

Related contents:

• You should self-host your mail server @ Christian Haschek's blog.

Automate and clean your inbox. Clean Up Your Inbox In Minutes.

Bulk unsubscribe from newsletters, automate your emails with AI, block cold emails, and view your analytics. Open-source.

• Inbox Zero @ GitHub.

Simple, modern & fast web-based email client.

Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution.

• RainLoop Webmail @ GitHub.

Open Source Groupware. SOGo is a fully supported and trusted groupware server with a focus on scalability and open standards. SOGo is released under the GNU GPL/LGPL v2 and above. SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV and GroupDAV, as well as Microsoft ActiveSync.

complete mail server SMTP + IMAP + POP3 + Antispam + Antivirus Web administration + Web email ...on your server in ~5 minutes

Email, collaboration, groupware and content management

Open Source email server software & mobility

Citadel is easy, versatile, and powerful, thanks to its exclusive "rooms" based architecture. No other platform seamlessly combines so many different features using this familiar and consistent metaphor.

Free, modern & fast web-based email client

A modern, fast web-mail client with user-friendly encryption and privacy features. 100% Free and Open Source software