SSL/TLS in Postfix and Dovecot: why and how
Let's Encrypt certificate, ports 465/587/993/995, TLS 1.2 where there is a password, Dovecot 2.3 and 2.4, tests, and MTA-STS against the attack that strips STARTTLS.
dovecot
go-postfixadmin: a modern dashboard for your Postfix server
Anyone who has built an email server with Postfix + Dovecot knows the ritual: the classic PHP PostfixAdmin, a web server configured just for it, and an interface frozen in time. go-postfixadmin is my modern answer: a single Go binary with the entire Vue 3 frontend embedded — a dashboard … Read more
The history of PostfixAdmin: the virtual user's service counter
In 2002, Mischa Peters of High5! released a PHP application so he would not have to edit MySQL by hand: virtual domains, mailboxes, and aliases. He called it PostfixAdmin. GPL. Postfix delivered the mail; it lacked a service counter. Twenty-four years later, PostfixAdmin 4.0.5 (July 5, 2026) is still that counter — now with TOTP, app passwords, DKIM, … Read more
The history of Dovecot: the dovecote that became IMAP
In July 2002, a Finnish developer who had already written irssi released an IMAP server designed to be neither Courier nor UW. He called it Dovecot — a shelter for pigeons. Five years later, on April 13, 2007, version 1.0.0 arrived. Timo Sirainen noted: “almost five years, but it is ready.” Twenty-four … Read more