iCloud mail began blocking my wife's gmail account after a recent iMac software update.
I have no blocks set up. I established a rule for her emails to be moved to inbox. However, she Gets a message from Gmail that my server has rejected her email. She does have a long email address, 13 letters. Does that trip some kind of iCloud filter? Any other ideas?
Thanks,
Fred
iMac 21.5″ 4K, macOS 10.15