I know this subject has been thrashed to death elsewhere but what is particulally alarming is spam that has no sending address at all, how is it that such mail:
1. gets onto the net?
2. gets transmitted?
I know most spammers use fake addresses but spam which seems to have no address at all how on earth does it work. My Mailwasher programme finds this a problem and only filter it out.
Any ideas out there?