From what i have read in previous posts, all my setting on my MS EX 2000 server are set to no relaying. I have even used telnet to test and i was denied because of relaying. However My email server is being clogged with 1000s of emails. Not many people use this server, 50 max. One of the queues is to the Yahoo domain which had over 2000 messages in it. My first question is if there is another way to delete all the queued messages at once. It took a half hour to delete just yahoo queues(enumerate then delete, enumerate, delete,etc etc...). My second question:what is going on with my server!!! After i deleted the queued messages another 1000 reappeared. Unless someone says otherwise it seems my server is being used for spamming. If it is then how can i stop this attack?