Actually I have heard of Some big ISPs doing this with servers in china that host websites for spammers. Basically when their DNS servers get a query the check the Blackhole and return a invalid IP if it is on the list.
----- Original Message ----- From: "Rick Klinge" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 29, 2004 10:04 AM Subject: RE: [IMail Forum] ASSP I use 5 and if it hits on 3 then drop carrier.. I have to agree in the philosophy though (except the part about 5xx'n the sender) and even yours John.. But why even except the trash in the first place. I wish there was a rDNS/BL established somewhere on the planet that would allow web browsers clients to bang against 1st prior to accessing web sites. Hmmm.. There's a thought.. ~Rick > > > I would rather just return a 5XX reject message to someone > that is on > > SpamCop. Let their mail admin deal with their blacklisted server > > problems. Better them than me. I guess that all depends upon your > > religion though, and whether you lean more towards Len or Scott's > > viewpoint of what should be blocked. I see merits in both > arguments, > > but on the most reliable DNSRBLs I > > use, I would much rather block than waste all that processing on > > filtering. > > Halt. Cease. Flag on play. > > You should never ever take such an action based on a single > DNS based black list. Haven't you heard of false positives > and incorrect listings? Did you know that for about a year, > (do not know about recently,) that SpamCop was listing Dunn & > Bradstreet off and on? Turned out it was people who were > having actions taken against that reported LEGIT e-mail to > SpamCop as spam and got it listed. > ___________________________________________________________________ Virus Scanned and Filtered by http://www.FamHost.com E-Mail System. 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/
