Failure to send a message. Thunderbird 139.0.1
I recently installed Thunderbird on a new Windows 11 PC. I am using Thunderbird 128.11.0esr on another machine and it works properly. I attempted to clone my 128 setup onto the new machiine by copying the Profile folder without success. Some settings were transferred, enough so that the inbox was filling with my emails. I tried to send a message. It failed with the message: "Sending of the message failed The message could not be send because the connection to Outgoing server (SMTP) smtp.gmail.com times out. Try again" As far as I can tell the SMPT server settings are exactly the same on the two setups: Description: Gmail Port: 587 Connection security: STARTTLS Authentication methon: OAuth2 Username TMerrillH Sending GMail using the GMail app works properly. Could it be something in the OAuth2 system?
Chosen solution
I think you're worth trying to disable kyber. It can be achieved by switching "seculity.tls.enable_kyber" to false with the config editor.
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Oauth relies on tokens which have been saved after a successful oauth process, which requires the correct password. Thereafter, neither a login nor a password is needed until the token expires, which is determined by the server being accessed.
david said
I believe Oauth2 requires a different password for each PC.
Passwords don't vary, but tokens do. In other words, the string that must be provided to the oauth password prompt will be the same in every case. However, a successful oauth process will save a token in Thunderbird, which is unique at the time it is saved.
That said, I think it is possible to copy tokens from one PC to another. It should be easy to test.
Gortzh said
... I tried to send a message. It failed with the message: "Sending of the message failed The message could not be send because the connection to Outgoing server (SMTP) smtp.gmail.com times out. Try again" .. Could it be something in the OAuth2 system?
What happens if you delete both smtp tokens and smtp passwords in Settings > Security?
After posing my question, I tried deleting the OAuth2 passwords. I received a verification request on my Android phone and accepted it. I'd hoped this would refresh the OAuth2 system, but it still fails with the same message.
Chosen Solution
I think you're worth trying to disable kyber. It can be achieved by switching "seculity.tls.enable_kyber" to false with the config editor.
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