addresses missing in To: field

[Roger]

Hope some has seen this.

I have two users who recieved the same email from someone
on the outside. They were both addressed in the To:
field. Person A gets the email in his inbox and sees all
the people listed in the To: field. In Person B's inbox
he sees the same email only his email address is in the
To: field and not person A's even though the send put both
of their names in the To: field of the originating message.

Thanks