here's a brain cruncher
1 user is NOT receiving email from 3 specific domains when he is in CC. When he is in to field, no probs. exchange 2007 message tracking shows email IS delivered. so they are received to hismailbox, and passing spamfilter etc
Other domains are fine.
no rules in exchange or outlook. Disabled OST on client, no joy. checked webmail. but no mail.