Mark Olliver wrote: > > Hi all > > can anyone think of a rule which check's if mail is coming from a valid > domain? & or block mail from certain users/ domains. > also can we create iptables rules to block mail with certain messages, or > can't we see this at the packet level
No you can't see this at the packet level. There is a string match, but there are entirely too many unresolved issues to effectively block spam. I use ask (http://www.paganini.net/ask) and spamassasin along with rbl and strict DNS resolution for accepting emails; spam *still* gets through - but only about 1/day as opposed to dozens. --Yan > > Thanks > > Mark > > http://www.carsplus.co.uk/e-Card/mpo.shtml -- Why "Yankee Doodle" should be the national anthem: "Oh say can you see, by the dollar's delight, "..." Akari, age 4, singing the Star Spangled Banner spam killer code kpwq1jkcsEzdx39gnkVvgycd15ayqq
