Mac OS Monterey update results in failed sends
Hi, thanks for all your help.
I updated to Mac OS Monterey this evening, and since the update haven't been able to send emails. Receiving emails works fine.
Using gmail server smtp.gmail.com Port: 465 Auth. method: OAuth2 Connection Security: SSL/TLS
I've followed every bit of advice I could find:
- Setting SMTP auth to normal password (from OAuth2)
- Deleting saved passwords and reauthenticating with Google, repermitting Thunderbird etc.
- Turning OS firewall off and trying to send (same 'unknown error' thrown)
- Reinstalling Thunderbird
- Setting auth to 'No authentication' fails because Google (and I) require it
I'm assuming it's to do with my OS update, but I could be wrong. Any advice?
Chosen solution
I have solved the problem. Funny how posting on support boards is part of getting closer to the solution, even if not providing the answer.
My issue was the attached file I was trying to send. Google was flagging it as a security threat; the file was from an old family computer and needed updating (i.e. saving with a modern program).
Possibly Thunderbird would like to note this error message and pass it from Google back thru Thunderbird. (Not to be presumptuous. Great app. Long live Mozilla. Thanks.)
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Also my draft email has synced with the Google servers (i.e. I can see it on mail.google.com), and I can send emails using mail.google.com in browser.
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I have solved the problem. Funny how posting on support boards is part of getting closer to the solution, even if not providing the answer.
My issue was the attached file I was trying to send. Google was flagging it as a security threat; the file was from an old family computer and needed updating (i.e. saving with a modern program).
Possibly Thunderbird would like to note this error message and pass it from Google back thru Thunderbird. (Not to be presumptuous. Great app. Long live Mozilla. Thanks.)