Since this morning I've been receiving "Not Delivered" errors --- although the message does go through --- when sending iMessage strictly to an email address (as opposed to phone number).
The desktop beta of Messages has shut down as well with "Not Delivered" messages.
I've tried rebooting both desktop and iPhone 4S as well as turning iMessage on and then off on the iPhone.
The desktop beta of Messages has shut down as well with "Not Delivered" messages.
I've tried rebooting both desktop and iPhone 4S as well as turning iMessage on and then off on the iPhone.