I would like to add that many T-1 lines have rDNS entries "lumped" together with DSL. Our ISP (which is not exactly a "small" ISP) returns a standard rDNS response for every IP they own (and give to their customers). They all contain the three letters "DSL". So we are getting caught up in this storm and are on a T-1.
Todd Holt Xidix Technologies, Inc Las Vegas, NV USA www.xidix.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of R. Scott Perry Sent: Thursday, June 12, 2003 7:46 AM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] OT: AOL's got nerve >BUT -- please correct me if I'm wrong, but it seemed as though this blocking >wasn't even necessarily by the use of a DSL line -- isn't it blocking by >what a >company has decided to use as a *name* in their DNS entry (or reverse DNS >entry)? Close. It seems that they are blocking on any reverse DNS entry with "dsl" in it (and likely others, such as "cable", "pool", etc.). However, one of the biggest issues is that there are a lot of small businesses and organizations that have a business class connection using DSL, cable, or a 24x7 dialup connection, but do *not* have control over the reverse DNS entry. The RFCs (depending on how you read them) require a reverse DNS entry, but don't specify what it has to be or whether or not anyone should have control over it. As one person pointed out, though, AOL has the right to decide to block such E-mail. My main reason for staying in the discussion wasn't to say that AOL is wrong; it was to dissuade others from following AOL's lead (by pointing out that 2.5% of our legitimate E-mail comes from mailservers with "cable", "dsl", etc. in the reverse DNS entries). >So that AOL/whoever is now trying to dictate naming conventions? If so, I >really REALLY hate >this idea . . . Agreed. I'm just glad that [1] Our IP doesn't have some of the more popular keywords in it, and [2] We send very, very little to AOL. I *do* like the idea of coming out with a new RFC or de-facto standard to "force" Internet providers into either [1] Allowing vanity reverse DNS entries for all their business class customers, or [2] Distinguishing in the reverse DNS entry between residential and business accounts. But suddenly imposing this without any warning -- well, that just causes people to get upset. :) -Scott --- Declude JunkMail: The advanced anti-spam solution for IMail mailservers. Declude Virus: Catches known viruses and is the leader in mailserver vulnerability detection. Find out what you have 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/ --- [This E-mail scanned for viruses by Declude Virus (http://www.declude.com)] --- [This E-mail 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/
