[Dovecot] SSL / TLS Problem

[Leander S.]

  Am 11.07.10 14:35, schrieb Stan Hoeppner:
> Leander S. put forth on 7/11/2010 7:26 AM:
>>   Hi,
>>
>> since I upgraded to the new Thunderbird version 3.1 I can't establish a
>> TLS/SSL connection anymore. But before the update Thunerbird was able to
>> establish an encrypted session ...
>>
>> Maillog shows me the following now:
>>
>> server dovecot: imap-login: Disconnected (no auth attempts):
>> rip=84.157.133.248, lip=192.168.1.100, TLS handshaking: SSL_accept()
>> failed: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca
>>
>>
>> Why is the CA unknowen - all of a sudden - ?!
> http://lmgtfy.com/?q=tlsv1+alert+unknown+ca+
>

Thanks a lot for the sarcastic google hint (even I had to smile) - but 
I'm not living behind the moon plus I wouldn't bother asking if I would 
find hints somwhere else ;)
Dovecot's SSL/TLS capability is configured as told by: 
http://wiki.dovecot.org/SSL/CertificateCreation PLUS it uses to run 
without any issues on other MTAs.
There is something else missed - I just don't get it ;/


Best Regards