get message that some emails sent in a group are not deliverable

F

F.H. Muffman

That's nice.

How about providing some more information, like what exactly is the problem?
Based by the subject, you send to 10 people and get failed delivery status
notifications for some of them.

Well, that's not really an outlook problem. Can you send to those users
individually? What does the error actually say?
 
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