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Old 11 Jan 2022, 03:18 AM   #1
Senior Member
Join Date: Jan 2010
Location: Kansas City - USA
Posts: 176
TLS error with Thunderbird and mail

I use the Thunderbird email client version 91.4.1 64 bit on a Windows 10 PC with my mail account. Sometimes I get the following error message when I open Thunderbird and it checks for my email.

"Non-overridable TLS error occurred. Handshake error or probably the TLS version or certificate used by server is incompatible."

It appears to be an "information" message as Thunderbird runs OK.

Does anyone know how to fix this error?

Thanks! Bill
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