Am 09.05.2012 22:40, schrieb Ken Stevenson: > On 2012-05-08 14:17, Markus Fritz wrote: >> Hello, >> >> the error is still present: >> May 8 19:47:18 opsys dovecot: imap-login: Disconnected (no auth >> attempts): rip=82.113.119.140, lip=78.46.216.126 >> >> Whenever I start a session with openssl to STARTTTL (Server: >> mail.opsys.de) the handshake is successfull. Also I am able to login >> to my account via 1 login. >> In Thunderbird port 993 for SSL/TLS works correct, only STARTTLS on >> port 143 isn't working properly. >> The cert is Class 1 and signed by StartCom Ltd.. >> Dovecot.conf (for viewable reasons of this mail pasted): >> http://pastie.org/private/bmrymyuo16ohzxdahf0nq >> And here openssl output: >> http://pastie.org/private/3rpgll2s7hblev9ozpcq8w >> Note the 'Verify return code: 21 (unable to verify the first >> certificate)' in the output... >> >> Thanks for helping, I am working on this problem since 3 days. >> >> Kind regards >> >> Markus Fritz > > How about this: > > Note: If you receive an error that looks like: > > 454 TLS not available due to temporary reason', Port: 25, > Secure(SSL): Yes, Server Error: 455, Error Number: 0x800CCC7F > > or anything similar, it is because your Norton AntiVirus Email > Scanning or other Anti-Virus software is scanning your outgoing email. > Shut off the 'Scan outgoing Email' option and it should work. > > It came from here: > > https://cs.stanford.edu/computing-guide/email/client-settings Sorry but: oh my god Thanks, really. Days of working and this simple resolution. I am running Avira and EMail scanning was turned on. Now it's working perfectly. That made my day.
-- Markus Fritz Administration