Just saw this new twist to an issue I reported last week with dovecot-2.0.alpha2. I logged into an IMAP account using telnet to port 143. After 30 seconds dovecot closed the connection. Mon Nov 2 16:00:07 server dovecot[52355]: imap: dup2(-1, 5) failed: Bad file descriptor Mon Nov 2 16:00:07 server dovecot[52355]: imap: service(imap): dup2s failed Mon Nov 2 16:00:07 server dovecot[52355]: imap-login: Login: user=<userV>, method=PLAIN, rip=192.168.1.10, lip=192.168.1.7, pid=59521 Mon Nov 2 16:00:37 server dovecot[52353]: master: service(imap): Initial status notification not received in 30 seconds, killing the process Mon Nov 2 16:00:37 server dovecot[52353]: master: service(imap): child 59521 killed with signal 9 Mon Nov 2 16:00:37 server dovecot[52353]: master: service(imap): command startup failed, throttling