What we do is check with 4 DNSBL providers and anything matching 2 out of 4 gets bounced. I can see it if you make it onto one list but landing on 2 pretty much clinches for me that the domain is up to no good.
We're using it as pretty much circumstantial evidence to couple with reverse lookups, HELO, etc... Bill -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris Langsenkamp Sent: Tuesday, June 22, 2004 12:44 PM To: [EMAIL PROTECTED] Subject: Re: [IMail Forum] Working with blacklists What I gleaned from your extensive list is that very few are contract services with any relationship to the administrator that uses them. I guess it seems to me that if I'm to trust what their records have, there has to be some obligation on their part to constantly maintain accurate information, and some mechanism for me (customer) to advise them (vendor) that they have something wrong and need to fix it, and quickly. There should be some reasonable accountability. Some of them you indicate have whole providers listed which can't possibly be realistic, and some even have 'spite' listings. How could anyone put the trust of their enterprise mail in the hands of such operators? Maybe I just don't understand their purpose, but it seems to me that if one is choosing to use an outside resource to provide a service it's because that resource costs less than doing it iin-house and/or would do a better job than in-house staff, but if there are gross inaccuracies that could cost the company a sale or a customer or reputation it's worthless. The occasional wrong item I could accept if I could let them know about it and expect prompt correction. So I guess my question is really about the level of service and support experienced by users of various lists. Since no one else has chimed in, am I to understand that there is none? Are such services not able to stand up to scrutiny and produce current evidence to support what they're reporting? If they're not, I'm having a great deal of difficulty in finding the value in their offerings. The coming answer might be to just mark X-headers but that seems to just lead me to having to check their results, which doesn't help at all. Chris ----- Original Message ----- From: R. Scott Perry To: [EMAIL PROTECTED] Sent: Tuesday, June 22, 2004 11:32 AM Subject: Re: [IMail Forum] Working with blacklists >I'm actually asking for feedback from those that use them and found >incorrect information leading to legit senders being caught and have >tried to get the information corrected, not so much from someone who's >been listed for their own bad acts and had to get themselves off. That's what I am referring to, too. But people don't get randomly added to the spam databases. They get added for a reason (aka "bad act"). The reason may be trivial (one user reporting that an E-mail was spam, even though it wasn't), or it may not be (you're running an open relay). >Examples might be an IP listed for bad acts by a previous owner, >listings with no basis in fact (forged, spoofed, etc.). The same applies -- it all depends on many factors. >It would seem that the open relay lists would be easy enough to get >cured by having them restest that the relay is closed. I'm more >interested in spam listings than open relays. > >If anyone has found such things and tried to get them fixed, which >lists have been easy to work with and what is the typical mechanism and >time required for corrections to get done. There are literally hundreds of spam databases, so it sounds like you are attacking this from the wrong angle. What is it specifically you are looking for? Are you trying to get more information on the various spam databases? Are you listed in many of them, and trying to get removed from the ones that will be quickest/easiest to be removed from? You may want to check http://www.declude.com/junkmail/support/ip4r.htm which has some information when people have troubles getting removed from spam databases. -Scott --- Declude JunkMail: The advanced anti-spam solution for IMail mailservers since 2000. Declude Virus: Ultra reliable virus detection and the leader in mailserver vulnerability detection. Find out what you've been missing: Ask for a free 30-day evaluation. --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
