Mail

Mailservers pages:

• Dovecot
  Configuration and usage on OpenBSD.

• Exim
  Using Exim as a flexible and fully configurable mail transfer agent on OpenBSD. Includes installation, TLS setup, local and remote delivery, and common configuration examples.

• Postfix
  Using Postfix as a secure, flexible, and widely supported mail transfer agent on OpenBSD. Includes installation, relay, TLS, and virtual domain support.

• Rspamd
  Configuring Rspamd on OpenBSD for spam filtering and mail classification, with integration examples for smtpd and other MTAs.

• smtpd
  Using smtpd(8) to send and receive email on OpenBSD, with secure default configuration and support for relaying, local delivery, and TLS.