aol accounts not working with apple mail on os 10.15.7
About a week ago my wife's Apple Mail account started bouncing emails with a Permanent Failure. She is sending from an aol account to an aol account and certain recipients create the failure, not all. What has changed? On iMac with OS 10.15.7 (the highest OS available on her 2013 iMac)
iMac 21.5″, macOS 10.15