Stalwart Mail Server
Stalwart is an open-source mail & collaboration server with JMAP, IMAP4, POP3, SMTP, CalDAV, CardDAV and WebDAV support. It is written in Rust and designed to be secure, fast, robust and scalable.
About
Stalwart is an open-source mail and collaboration server designed for organizations and individuals seeking a self-hosted alternative to cloud-based email services. It supports modern email protocols like JMAP, IMAP4, POP3, and SMTP, along with calendar and contact synchronizatio…