14 times less CPU per message than Postfix with Dovecot 0.62 to 0.68 ms against 9.6 to 9.9 ms for each small message stored, on a desktop PC, 29 September 2026
What it does
It sends and receives mail, checks that each mail is genuine, and gives you one calm inbox.
It stores a small message on a fraction of the CPU that the classic pair, Postfix and Dovecot, needs for the same job.