I'm on Thunderbird Nebula 128.1.0esr 64-bit. I use IMAP and I have multiple accounts in my Thunderbird configuration. I have Google Workspace for our business which I c… (read more)
I'm on Thunderbird Nebula 128.1.0esr 64-bit. I use IMAP and I have multiple accounts in my Thunderbird configuration. I have Google Workspace for our business which I can received and read email by IMAP, but I cannot send. I also have a personal Gmail account and that can send and receive.
Yesterday Google experienced a global outage and as best I can tell it has somehow screwed up the OAuth2 Session / Tokens for some Thunderbird clients. Over on Reddit there are other users reporting the issue and it appears to be a bigger issue on Workspace accounts. It does not affect the entire Workspace domain. In our business, I have other users who are on Thunderbird and can still send/receive email on the same Workspace hosted domain that I am having issues with.
I have gone into Settings > Privacy & Security > Saved Passwords and removed the entries for the account that I'm having problems with. That did cause Thunderbird to spawn the browser window to Google to carry through with OAuth2 token approval. That got me back into receiving email, but I still can't send via SMTP.
When trying to send I get the following dialog, but clicking Enter New Password just does nothing and the Dialog just reloads again. I attempted to add a new SMTP Server in Thunderbird, but that never prompts a new OAuth2 dialog for that new server and same Dialog box appears.