Documentation and information relating to my self-hosted mail server

Postfix is used as the SMTP server and Dovecot is used as the IMAP server

TLS certs are obtained via lets encrypt

OpenDKIM is used for signing paired with spamassassin for mail filtering

A custom self-written Bash script is used to parse logs and automatically drop connections from offenders with iptables

Features

• Mail successfully delivered to the most prolific service proivders, such as Microsoft, Google and Yahoo

• Fully functional mail accounts successfully able to into clients

Extremely useful tools in debugging

• The "postfix check" command

• The "doveconf -n" command

• https://www.appmaildev.com/en/dkim

• https://sendtestemail.com/

• https://mxtoolbox.com

Extremely useful documentation

• https://www.postfix.org/documentation.html

• https://doc.dovecot.org/

• https://thomas-leister.de/en/mailserver-migrate-config-to-dovecot-2.4-debian-trixie/

• https://landchad.net/mail/