>> -----Original Message----- >> From: Skip [mailto:[EMAIL PROTECTED] >> Sent: Tuesday, October 09, 2007 2:26 PM >> To: users@spamassassin.apache.org >> Subject: RE: Advice on MTA blacklist >> >> > Well, in the real world, many of us who would have to scan >> > over 150,000 inbound emails a day, of which about 85% are >> > pure 100% spam simply don't have that luxury... >> > >> > We've had best results with zen.spamhaus.org , other dnsbls >> > seem unreliable/not worth the effort.... >> > >> > regards, >> > jp >> >> Admittedly, I process more on the order of 10,000 messages a day. But >> your >> second point here is the very reason I won't use them: unreliable. >> When I >> initially rolled out SA, I was using both spamcop and spamhaus along >> with a >> couple of others. I quickly eliminated down to those two. Then to >> one. >> Then removed them entirely after about 2 months of use. >> >> I have a number of travelling personnel from my company. I don't want >> the >> call at 11pm on a Wednesday night or 6 am on a Sunday morning from a >> hotel >> and the network they are on is on one of those lists and they can't >> use >> their email. I also have seen my ISP have a range of their network >> falsely >> flagged (and it encompassed our network range) for a period of 36-48 >> hours. >> That put a major dent in communication with our customers. >> >> I am not certain how anyone can claim that they have no FPs running >> through >> those services unless they have prior knowledge of every inbound >> email. >> That is impossible. My company deals with on the order of thousands >> of >> companies and multiple times that in email addresses. There is no way >> to >> know how many of those systems were falsely (or correctly) placed on a >> blacklist at any point in time. >> >> - Skip
Good points... I'm certainly not claiming we have no fp's from spamhaus, but since no one has complained in over a year, why would I stop now and bring the server to it's knees? Sure, I'd love to accept and scan them all but we simply don't have the resources...
