Hi all, I have a strange problem with my Exchange 2000 server. A user complains that when he sends an email, the recipient doesn't recieve it for 3 or 4 days sometimes (even if the recipient is part of our own Exchange Organisation). I was sceptical but sure enough when I use message tracking in the ESM to find one of the emails he sent, it shows the email spent 3 days being processed. These are the Message Tracking results: 8/10/2007 7:30AM - SMTP Store Driver: Message Submitted from Store 8/10/2007 7:30AM - SMTP: Message Submitted to Advanced Queuing 9/10/2007 10:11AM - SMTP: Message Submitted to Advanced Queuing 10/10/2007 12:30PM - SMTP: Message Submitted to Advanced Queuing 10/10/2007 12:30PM - SMTP: Started Message Submission to Advanced Queue 10/10/2007 12:31PM - SMTP: Message Submitted to Categorizer 10/10/2007 12:31PM - SMTP Store Driver: Message Delivered to Store to BDavies@......... There are no emails in the queue's for this server. Any ideas about why this could be happening? Regards, Paul