On Thu, 2006-05-18 at 07:23 -0700, Marc Perkel wrote: > URI based black lists have been extremely effected in identifying spam. > I propose another kind of black list. A list of email addresses embedded > in the message body as replies to nigerian type spam and other spam > where you are instructed to reply to the email address in the message body. > > One thing about all spam is that the spammer wants you to do something. > And it's what the spammer wants you to do that is the key to identifying > spam. Most spam wants you to click on a link. So the URI black lists > work well because it catches the sites that spammers link to. > > But - a lot of spam - like nigerian spam - wants you to reply to an > email address in the message body in order to do what the spammer wants. > So if there were a blacklist of email addresses that spammers use as the > place to reply then that would cut into the remaining spam > significantly. If we can block email based on a real time list of email > addresses within the body a whole new class of spam can be blocked with > very high accuracy. > > Who likes this idea? >
Picking up an old thread. Maybe we would not want to do a lookup at for example. dig txt spammer=domain.tld.blacklist.tld To check if [EMAIL PROTECTED] is a spammers email address. But only at domain.tld.blacklist.tld and punnish the webmailprovider (most of the time the free providers) with a low score. It doesn't make a message go over the top but if e.g. in every message with a yahoo/hotmail/... address in it which is scanned by SA a line is included with EMAILBLACKLISTYAHOO=0.5 added maybe then someday yahoo will do someting about spammers. Maybe then there could be even a (dangerous and misused but free advertising for the provider) rule which will be a negative scoring rule. I would "love" to see in every spam message spammers mis-using my good name to lower the amount of point. (possible problems like the good-old bayes poisoning) In this example yahoo is used but it could have been any provider. -- With kind regards, Maurice Lucas TAOS-IT
