I am getting incredibly frequent "Not Delivered" errors when sending messages on my Macbook. They're iMessage messages (as opposed to SMS messages), and I just get spats of them where it seems like every message I try to send throws up this error:
The super frustrating part is that the messages ARE sending. The other party seems to be receiving them just fine. I hit resend and it succeeds, or I hit ignore and it's not a problem. But this damn error window opens up constantly.
I've tried deleting the conversation with the person (or people), re-linking my iPhone to the Macbook, disabling the Jabber account, and signing out and back into my Apple account. Nothing thus far has worked. Is there any way to get additional details as to what is triggering this error?