Aborted Mail Delivery

[Charles Fillmore]

This is a head scratcher for me. Our church has two small lists to which I send email using Outlook. The two groups consist of about 75 addresses total. I send to both groups simultaneously so I don't know which group the bounce-back comes from.

Here's the mystery: I receive a message telling me that mail to a particular address was undeliverable. The problem is I don't see that address in my contacts or either of my groups.

Any ideas?

CF