[macOS 15.4.1, Mail.app 16.0]
I exploit Mail.app to entry 4 MS 365 accounts. One stopped having the ability to ship/obtain just lately (quickly after I up to date from 15.4 to fifteen.4.1?). Restarting Mail or the MacBook Professional does not assist. I nonetheless have full performance with the opposite 3. Close to the upper-right nook of the primary Mail.app window is the textual content “Account Error” with a triangle warning image. If I click on that textual content, I get a dialog with the message
On-line Standing
Connections to host (null) on the default ports failed.
I additionally tried going to System Settings -> Web Accounts -> downside account after which toggling the Mail setting off, then again on. Nonetheless no luck. I can learn/ship email with this MS 365 account on my iPhone with no points.
I notice I can absolutely blow this account away after which re-sync every thing, however that is the account with 3GB of mail, and it might be a trouble to do this, so I am hoping to seek out one other choice to this downside. Thanks for any pointers!
