Am 14.02.2007 um 21:59 schrieb Viktor Steinmann:
Nowadays, every sicko can buy a .com domain for 9$ or even less. Spammers buy domains, put correct SPF records in their zonefiles and throw the domain away afterwards... (just like you did with hotmail accounts a few years back :-))
So IMHO DNS based spam fighting doesn't work. At least not the SPF way...
that's not strictly true. I'm considering SPF because of all the postmaster-bound back-scatter from stupid penny-stock Spammers that abuse one of my domains.
Cheers, -daniel