On 24.3.2012, at 15.04, Michael Neubert wrote: > openssl s_client -connect mailserver.com:993 > * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN] Dovecot ready. > a login "username" "password" > closed And what happens without SSL? e.g. telnet localhost 143