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Thunderbird Security Error

April 18, 2004 by debbie T | Internet • Thunderbird Email

Even though I can utilize my own ISP , I like to use my own domain for outgoing mail. Since I am still new to how Thunderbird Email program works, I couldn’t figure out what was causing this error message.

See screenshot of error message.

Well after troubleshooting tips from my buddy Becky, I realized that my outgoing security connection was set as “TLS if available” instead of “no” security connection.

From the Tools>Account Settings menu, scroll to the bottom for “Outgoing Server” and make sure the setting for “Security Connection” is “no”.

If you have more than one outgoing server, choose Advanced, then Edit these outgoing servers to the same setting. Screenshot available.

No more error messages!