Hey Guys, I am technical, but by no means a guru, so if this questions is a "no-Duh" please point me in the correct location. Irun an Exchange Server box inhouse. It is located behind a Cisco Firewall, and passes the SMTP relay tests (no open relays). When I goto the Exchange System Manager, and I look at the queues I find a bunch of emails stuck in the queues. When I locate the emails, they claim to be from Postmaster@mydomain.com. The send-to is clearly a non-existent address. So in the System Manager I goto MESSAGE DELIVERY and then to the SENDERFILTERING Tab and I add Postmaster@mydomain.com to the blocked list. This did not change the accummulating emails. I then went and created a legititmate user account named POSTMASTER, and then disabled the exchange features for the account. This did not change the accummulating emails. While I understand that those in the queue are not being sent out, I am curious as to why they are still gathering, and are their SPAM/UCE emails that are somehow being routed through my server? Thoughts and ideas ? Thanks Dave

I suspect what you are seeing is mail queuing up outbound that is a result of NDR's from inbound spam. On the Message Delivery properties, look at the Recipient Filtering property page and click the checkbox that says to reject mail for e-mail addresses that are not in the Active Directory. Then, on the SMTP virtual server (or servers) that accept mail from the Internet, on the IP address properties, enable Receipient Fitering. I'll bet that will get rid of a lot of that garbage that your server is accepting and then trying to send out NDRs for.

Thanks for the tips, This morning the queues were empty !!!! I feel better Is there an easy way to review all emails sent over a 24hr period ? Thanks again for the quick resolution. Dave B

You can't really (and easily) run a report of all e-mails sent during a period of time. This information is recorded in the message tracking logs, but it is not easy to "mine" those logs for useful statistical data. I recommend something like Promodag Reports or Quest MessageStats.