I am trying to copy several Outlook 2007 Contacts from one Contacts folder to
another. However, I am getting this error message:

"One or more email addresses are not in a valid format. All email addresses
must be typed in the following format: 'example@domain.com"

I have had no problem copying Contacts before. The contacts I am copying do
not even have email addresses.

What does this message man and I do I work around it?