This problem is evident in all versions of Outlook as far as I can tell. It appears on the Outlook client that comes with Office XP Prof, Office 2000 Prof and Office 97 Prof. No problems at all on GW clients. I only see this problem when a GW user sends email to an Exchange user, and the email contains Internet email addresses in the To or CC fields. They get reformatted as I detailed in my original msg when the email is delivered to an Exchange user. Mike