One rejected address when there are many in the "To" field?

[Guest]

Outlook refuses to send out my e-mail message because it found one address
that was rejected. It does not identify which one. How do I find the one
that is bad whothout removing each addressee to verify their infromation.

 

[Lanwench [MVP - Exchange]]

Outlook refuses to send out my e-mail message because it found one
address that was rejected. It does not identify which one. How do I
find the one that is bad whothout removing each addressee to verify
their infromation.

I don't know of a way if you don't see it listed. Do a mail merge instead of
putting everyone in the TO or CC or BCC field. Much better option anyway -
sends out an individual message to each recipient with their address in the
TO field.