Hi, one of my clients appears to be receiving a lot of spam to users at his domain which don't even exist. On a day to day basis, I have to delete a queue of about 1000 emails intended for going out to many different recipents basically saying that the address is undeliverable because it doesn't exist! The emails they are trying to send is nasty and rude spam mail!

Is there something I can do to reduce this as while the queue is so big, my server load starts to get high too.

Regards

Paul