Mail is not that hard
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
A personal developer's write-up on self-hosting mail for his own domain since 2019, running Postfix, Dovecot, Rspamd and PostgreSQL on a single FreeBSD machine. It is useful to teams weighing self-hosting against a managed provider because it details the operational pieces: database-backed aliases, failing closed when the spam filter is…