Anyone else having issues with iCloud email aliases not being able to send or receive mail? If I send an email to my alias from gmail, gmail spits back "550 5.1.1 unknown or illegal alias". If I try from my primary iCloud address, it stays stuck in my outbox with "rejected by the server because the user is unknown". The alias email address in question is set up properly on iCloud.com and is "verified". It was working fine up until this week.