How do I register outlook.com to iMessages?

[iMore Question]

How to register outlook.com to imessage

I can't receive or send messages to my granddaughter because I keep being told her email address is not registered to imessage

 

[Rob Phillips]

Re: How to register outlook.com to imessage

I can't receive or send messages to my granddaughter because I keep being told her email address is not registered to imessage

Welcome to iMore! Has your granddaughter registered her email address with iMessage? This is not something you can do.