OD> If I start dovecot compiled without kqueue i see in log:
OD> pop3-login: Disconnected: rip=xxx.xxx.xxx.xxx, lip=xxx.xxx.xxx.xxx, TLS
OD> and nothing else
  

do you have "disable_plaintext_auth = no" in dovecot.conf? otherwise dovecot refuses plaintext logins with pop3 and imap without ssl. 

what happens if you telnet to your dovecotserver? 

you can use "auth_verbose = yes" and "auth_debug = yes" in dovecot.conf for more logging... 


groeten,
HenkJan Wolthuis