Description of problem: When sending an email to my IMAP server (configured with connection security: STARTTLS), in F10 was it, TLS, I get a connection error on Port 25 when sending an email: Sending of message failed. An error occurred sending mail: Unable to authenticate to SMTP server smtp.uni-kl.de. The server does not support any compatible secure authentication mechanism but you have chosen secure authentication. Try switching off secure authentication or contact your service provider. This behaviour I never had in F10!! Version-Release number of selected component (if applicable): thunderbird-3.0-2.1.beta2.fc11.i586 How reproducible: Each time when sending emails Steps to Reproduce: 1.Compose email and send with the sned button. 2. 3. Actual results: The above described error msg Expected results: Mail is sent Additional info:
misconfigured smtp server access.