Am Dienstag, 14. Juni 2022, 11:30:52 CEST schrieb Janos Dohanics: > Well, doesn't the error message "unable to connect to server" imply > that authentication couldn't have even been attempted because no > connection was established? depends from the definition / interpretation of "connection"... At least your telnet out and the sieveshell dialogue suggests that there is any issue on the auth stage over a proper TCP connection: >> Please enter your password: >> unable to connect to server at /usr/local/bin/sieveshell line 202, <STDIN>... > FWIW, I can connect and authenticate with imtest(1). i remember, that IMAP / POP3 connections / authentication was "working", only sieve was not (because of some special dependency within the regarding code). Took me several days to fugure that out. ...and if i remember right, sieveshell expects ssl/tls (even if this is not used / required in any cyrus sieve setup). But this is just a shot in the dark with fragments of my similiar experience from my mind. hth, niels. -- --- Niels Dettenbach Syndicat IT & Internet https://www.syndicat.com PGP: https://syndicat.com/pub_key.asc --- ------------------------------------------ Cyrus: Info Permalink: https://cyrus.topicbox.com/groups/info/Tfbcc6e25334b6cee-Mefbc78f02d7d654aa61830d5 Delivery options: https://cyrus.topicbox.com/groups/info/subscription