Simple, modern & fast web-based email client
MIT License
IMAP ➝ SQL syncing engine, JavaScript-free email client, and a Kanban-style email client
🌰️🐿️ SquirrelMail GitHub Repository (PHP 7-OK!)
The Roundcube Webmail suite
A simple PHP mailer package with zero dependencies.
Manage mailboxes, filter/get/delete emails in PHP (supports IMAP/POP3/NNTP)
💌 Mail app for Nextcloud
A lite and minimalistic PHP library for sending mails using Mailgun API.
The classic email sending library for PHP