Hotmail Sync Errors

Why have other Mail Clients no errors on the same Win11?

Why have other Mail Clients no errors on the same Win11?

Maybe other mailers possibly just eg: ignore those specific content-type errors and just allow them anyway where they really shouldn’t.

Or they aren’t using AirSync at all.

I, too, have to admit, the errors are history.
This was also the case before the Win updates? So i don’t know why?

I now find that either of the two Microsoft email accounts I have are getting undeliverable notices when sending to Yahoo email addresses.

I know this is not a problem with eM Client. I have tried both Microsoft emails to Yahoo Email addresses through two different browsers.

I guess it’s either Yahoo or Microsoft server problems.