Q: Messages says "XXXXX is not registered with iMessage"
iMac14,2
MacOS 10.9.1
All of the sudden I can't send any messages on my iMac. It was working about a week ago. No update to the OS has happened since then. Every email address and phone number now says "XXXXX is not registered with iMessage." Old conversations that are months old suddenly aren't updated and I can't send another message. I can't initiate new conversation because of the error. I can't even send a message to myself from the iMac (works fine from my iPhone). Just to be clear, these contacts are wtihout a doubt registered with iMessage. I'm not trying to send an iMessage to my grandma's 2004 flip phone. Messages/iMessage still works on my iPhone 5S, iPad 3, MacPro at home, and MacBook Pro. I've tried disabling and signing out of the account and signing back in. The best result I got from that is the "To:" field turning blue, as it does when sending to a registered iMessage address, only to then turn red, as it does when it thinks the address is not registered. Any help would be much appreciated.
Posted on Jan 29, 2014 2:46 PM
And just like that. This morning it is all working again. My iMac was turned off all weekend and then lo and behold it is wroking now. No rhyme or reason.
Posted on Feb 3, 2014 9:24 AM
