O.K., here's a weird one. I have a network running Exchange. All users can send and receive email O.K. But I have one user who cannot receive any internet email from one person outside the network. They can send an email to anyone else in the network, except for this one person. There is no email filtering, etc. on the network and their not running any rules or spam/adult filtering under their Outlook 2000 client. Anyone else run into this weird problem?