[reloadtak]

1. That's one mail flow rule.

2. Agreed

3. Yes, inbox rules could color these

4. Something must wrong in CA, this should not happen (if you don't want it to)

[desipenguin]

I have faced "O365 required re-authentication every 24h or so" in my previous job.

It was irritating.

I just assumed it was "IT policy" and accepted the inconvinience.