sypheed error:
* Connecting to POP3 server: venus...
[14:08:13] POP3< * OK Dovecot ready.
** Error occurred while processing mail.
* Connecting to POP3 server: venus...
[14:14:50] POP3< * OK Dovecot ready.
** Error occurred while processing mail.
* Connecting to POP3 server: venus...
[14:18:08] POP3< * OK Dovecot ready.
** Error occurred while processing mail.
* Connecting to POP3 server: venus...
[14:22:43] POP3< * OK Dovecot ready.
** Error occurred while processing mail.


/var/log/mail.log
Apr 11 14:14:50 venus dovecot: imap-login: Disconnected: rip=127.0.1.1, lip=127.0.1.1, TLS


bkw@venus:~$ telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 loke.lindesign.se ESMTP Postfix (Debian/GNU)
EHLO my.host
250-loke.lindesign.se
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH NTLM LOGIN PLAIN DIGEST-MD5 CRAM-MD5
250-AUTH=NTLM LOGIN PLAIN DIGEST-MD5 CRAM-MD5
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
AUTH PLAIN Ymt3AGJrdwBiYWhtYW5raGFyYXpta
235 2.0.0 Authentication successful
QUIT
221 2.0.0 Bye