Pesky spammers are using my mailbox

Sat May 31 18:16:08 UTC 2003

Hi,
 seems some spammers are using one of my personal domains as the from field in 
their emails, the local-part being random so I cant easily block it.

Has anyone any advice on tracking them down and making them stop?

All I get are the bounces, some include the original headers but that usually 
gives an open relay as the origin.

I think I know the answer (you cant do anything) but I wanted to ask as its very 
annoying and I'm not happy!

PS Anyone around at the Sheraton today.. I cant spot anyone looking nanogish!

Steve