have found you there'll be no let up. I run three separate email accounts, and was receiving over 100 spam messages a day on each of them. IDG Communications - the magazine's publishers - have now installed anti-spam measures on our mailserver and my Forum Editor address hardly receives any spam at all.
Both my private and my business addresses are now also protected by anti-spam software on the server, and the spam problem has all but gone - it's a bad day now if I get half a dozen. I strongly recommend that you find out if your ISP can offer server-side spam protection - it's worth the few extra pounds they might charge.