I have a server running windows 2003 small business server edition. Exchange has been online and running for a year now. All 10 users are not able to send or receive email. Email is downloaded via the POP3 connector and I see lots of email in the mailboxes on the web site that hosts their POP3 email. I have restarted the POP3 connector service and also rebooted the server. Still not getting email.