Why are my messages 'Not Delivered" from my iMac

Hi Markylee_Onix,

We understand you're having problems sending messages from your iMac, and we'd like to help. So we're on the same page, are these messages being sent to an Apple ID email address or a phone number? If you're trying to send them to a phone number, you'll want to make sure that text message forwarding is set up from your iPhone first.

How to forward SMS/MMS text messages from your iPhone to your iPad, iPod touch or Mac

Send messages on Mac

Can you receive messages on your iMac but not respond to them? If so, please also make sure that your Mac isn't behind a firewall.

Let us know what you find!

Take care.

Hi I have the same issue. Can't send from my Imac. No firewall. I've gone through all troubleshooting mentioned in the literature and still nothing.