Imessage doesn't work with non iphone users
My imessage used to work with anyone who text me. Then it stopped working after I updated my software on my iphone. I have got imessage working for iphone users but not non-iphone users. If they don't have an iphone, I can no longer send or receive their messages on my imac desktop. Can anyone help me?
Thanks,
Michelle
iPhone 5, iOS 8.2