Hi all, I just setup SBS2003 server one week ago, But now I find a lot of duplicated copies of emails in the some mailboxes that related with POP3 users in the Exchange server even when the the sender and receiver log off. I monitor some mailboxs in the exchage server from Friday night to Sunday afternoon when nobody is on the line, and find some single email has over 100 duplicated copies. This is only happened for the POP3 users,especially when the user is not on the line. It seems the emails in the mailbox of exchange server copy themself. Would you please tell me how to fix this issues? Your help will be highly appreciated. MIchael Tang