[Dovecot] SSL / TLS Problem

Leander S. leander.schaefer at googlemail.com
Sun Jul 11 15:35:08 EEST 2010

P.S. Postfix TLS/SSL works still fine ... I don't understand why dovecot 
doesn't want to work with the new thunderbird version ...


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=, lip=, 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 - ?!


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