Er... This may not be a Mac problem, but it's happening on a Mac, so:
I get the usual assortment of spam, offering blue tablets, increased inches, etc. But some of the spam appears to originate from my address.
Not only that, but I cleared out the 'Sent' bit of Mail this afternoon and found that said spam appeared there as well!
How on Earth does all this happen, and how can I prevent it?
Any hints, tips, used fivers, etc, much appreciated.
Cheers,
Ol.
(The machine is an Intel desktop running Leopard with Mail; it speaks to the outside via Ethernet, an ADSL modem and the telephone line.)