Cyrus isn't particularly inferior to Dovecot. Dovecot is a newer project (but still quite old), and thus maybe a little less crufty. But, I don't know anyone th

Cyrus isn't particularly inferior to Dovecot. Dovecot is a newer project (but still quite old), and thus maybe a little less crufty. But, I don't know anyone that considers Cyrus to be a bad tool or poorly maintained. I chose Dovecot for Virtualmin a dozen years ago, but it wasn't because Cyrus was bad. Dovecot has some advantages, but Cyrus has a few, too; Cyrus is much further along on their JMAP implementation than Dovecot, for example, as far as I can tell.