I'm not sure what I can add?
Using Win11
Running Avast One (free) 22.2.6003 (build 22.2.7013.717)
Running Windows Mail for a few months with no problem.
In the last week, when I try to sync email I get the error code: 0x80072f89.
But if I turn off Avast Shields then the email sync works.
Nigel