mail server Archives

Stalwart – all-in-one mail and collaboration server

Stalwart is an all-in-one mail and collaboration server with SMTP, IMAP, JMAP, CalDAV, CardDAV, WebDAV, filtering and web administration.

Sendmail is a configurable mail transfer agent with flexible routing, SMTP authentication, TLS, policy controls and mail filtering.

Citadel is an email and groupware server with SMTP, IMAP, POP3, calendars, contacts, web access, mailing lists and collaboration tools.

Dovecot is a secure, high-performance IMAP and POP3 server with authentication, mailbox indexing, Sieve filtering and flexible storage.

Cyrus IMAP is a scalable email, contacts and calendar server with IMAP, JMAP, CalDAV, CardDAV, replication, quotas and access controls.

Courier is an integrated mail server providing ESMTP, IMAP, POP3, webmail, mailing lists, authentication and Maildir-based message storage.

Postfix is a secure and widely deployed mail transfer agent with flexible routing, TLS, SMTP authentication, filtering and policy controls.

Zimbra is a collaboration server combining email, calendars, contacts, webmail and administration with open source components.

DBMail stores email and account data in SQL databases, providing scalable IMAP, POP3 and LMTP services without filesystem mailboxes.

OpenSMTPD is a secure and lightweight SMTP server with simple configuration, local delivery, relaying, filtering and authentication support.

Exim is a configurable mail transfer agent with flexible routing, ACL-based policy controls, authentication, TLS and content scanning.