Outlook: Bad Command Error. 12

Mail
21

Interesting. Thank you. So it is Outlook causing the errors but it affects one client but not another. Still no errors seen on Betterbird. I am not at all technical but, from looking at the info you kindly pointed to, could that be something to do with the way each client connects with Outlook?

22

Interesting. Maybe this throttling issue is what causes most of the issues we have had with Microsoft accounts over the last couple of years.

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23

Perhaps Betterbird also gets this error but retries successfully without reporting it?

24

I wouldn’t know how to find that information.

25

You would have to ask the Betterbird developers.