My iCloud mail is not working on my iMac, but is fine on my iPad and iPhone?
A previous comment said that problem had been resolved, but my mail has not been working for 3 or 4 days
iMac 21.5″, macOS 10.12
Question marked as
Either the Mac mail application is corrupted , make sure all accounts are online , rebuild Rebuild mailboxes in Mail on Mac - Apple Support