This past week I ahve ntoiced all sorts of strange packet data on Wireshark.
I have been snooping on out mailserver and in the queue I noticed several fictious domains and all the mail being sent to these domains was from a user on our network to a recipient email@example.com
I have deleted all the mail in the queue from our internal user to this fictious user, the queue has cleared.
There are lots of random IT related sites and showing as making conenctiosn to our server.
How can I test the security of the Mailserver. Our Exchange 2003 server sits behind a Barracuda.
I do not ahve the server set up to relay.