I have an Exchange 2003 Server which the SMTP stopped working. I have uninstalled and reinstalled smtp and it started working(ie i can telnet into it now). But now Email is disappearing into the never never. Spam Service is showing mail as being delivered.....but nothing shows up. Mail sent from Outlook leaves outbox.....but never arrives at destination. Internal does not work either. Now the smtp service has stopped working again. I am currently coping the priv & pub files just in case. Any Suggestions would be greatly appreciated.