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SMTP correction issue with thunderbird

Level 2

Can't receive or send emails with Thunderbird


Sending of the message failed.
Peer reports incompatible or unsupported protocol version.
The configuration related to must be corrected.

Level 14

Hi uluvit13.

A moderator produced this article for Thunderbird.


You'll notice near the end that SSL is set to NONE, so all communication is not encrypted. Thunderbird v78 has deprecated SSL/TLS below TLSv1.2. 

If you want to use encryption, have a look here:

Read through the whole lot but take note at the end from David1010. I don't use Thunderbird so I can't comment on it.