https://wiki.alesur.nl/ Tue, 05 May 2026 14:25:36 +0000 FeedCreator 1.8 https://wiki.alesur.nl/lib/exe/fetch.php?media=wiki:logo.png https://wiki.alesur.nl/ https://wiki.alesur.nl/doku.php?id=manuals:servers:mailserver&rev=1556054190&do=diff Setting up a Postfix + Dovecot mailserver in Debian 10 (`Buster`) Adapted from Quietlife on Setting up a Postfix + Dovecot mailserver. Firewall The following ports have to be opened in your firewall: 25/tcp # SMTP 80/tcp # HTTP (for autoconfiguration) 587/tcp # Submission 993/tcp # IMAP SSL anonymous@undisclosed.example.com (Anonymous) Tue, 23 Apr 2019 21:16:30 +0000