I have a user in one of our sites who is unable to receive a mail from one of her suppliers. She is running Win Xp SP2 on Outlook2003. Basically the supplier sends the mail but the user does not receive the e-mail. When tracking is enabled on the e-mail it shows as being delivered to the user's mailbox but she does not see the e-mail. When supplier copies another user in the same location they receive the e-mail ok. Rules have been checked and deleted on the user's machine and profile recreated from scratch but the same issue occurs. Also when the user tries receiving mail in webmail she gets the same problem. This issue only occurs with this one e-mail address and user receives all other e-mails without a problem. Also junk mail has been checked and it is not being directed there.