>> 1. ISPs are not accurately, clearly and fairly specifying RDNS entries. They need to do a better job of this, but have little motivation to do this. <<
Well - I see your point and admit that there will be a painful time of adjustment. But frankly, providers like yours will adopt their policies, when many of their business customers suddenly have valid complaints that they are unable to send emails anymore. There is no need for them to DELEGATE DNS, but at least they have to offer to adopt their Reverse DNS to your needs (e.g. generic host entries for your domain). In the meantime, why not relay your outbound mail through your ISP? Best Regards Andy Schmidt Phone: +1 201 934-3414 x20 (Business) Fax: +1 201 934-9206 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Todd Holt Sent: Wednesday, December 17, 2003 01:33 AM To: [EMAIL PROTECTED] Subject: RE: [Declude.JunkMail] Does anyone not have Reverse DNS? Jason, Many ISPs refuse (for one reason or another) to delegate RDNS. For example, we have a T-1 from MPower in Las Vegas. It is business class. It has is a static block of 8 IPs. Normally considered by most as acceptable to host a mail server. But Mpower refuses to delegate RDNS. And a few times people on this list have set forth criteria that would classify us as unacceptable. Bundling us into the dynamic IP bunch because of our RNDS from MPower: las-DSL224-cust089.mpowercom.net The most common reason for this reasoning is that most admins consider "DSL" to be equal to "consumer". But there is such a thing as SDSL (symmetric DSL) at speeds > 2Mbit! A better hosting environment than my T-1. In conclusion, I see two distinct problems here: 1. ISPs are not accurately, clearly and fairly specifying RDNS entries. They need to do a better job of this, but have little motivation to do this. 2. Mail admins need to do a better job of creating criteria for mail classification. Don't lump all DSL into spam source. Don't put a lot of stock into what an RDNS says, just that it exists. I really appreciate Pete McNeil's unique approach in building a tool that looks for the same things that I would look for by hand, in the content, not the context. I think we need more out of the box thinking like this. Todd Holt Xidix Technologies, Inc Las Vegas, NV USA www.xidix.com 702.319.4349 > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:Declude.JunkMail- > [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > Sent: Tuesday, December 16, 2003 7:52 PM > To: [EMAIL PROTECTED] > Subject: [Declude.JunkMail] Does anyone not have Reverse DNS? > > I wanted to throw this question to the list: > > 1) Who does *NOT* have Reverse DNS (PTR) entries for their mailservers? > > 2) If so, why not? > > Personally I think reverse DNS entries adds an ounce of ownership to who > actually uses an IP address. For instance, I have several IPs given to me > by my colo provider. I have reverse DNS on all of them, even the IPs I > haven't used yet. If anyone looks my IPs up they will see something like: > Number.freedom2be.net as reverse DNS. This is basically telling them that > "freedom2be.net" is the operator of the IP address. > > 3) Shouldn't all mail servers on the internet have a reverse DNS entry > with some valid "administrative" domain name? We use "freedom2be.net" > exclusively for our reverse DNS entries. As our mail server is multi-homed > with many different domains. If someone needs to contact the appropriate > owner of the IP, say our mail server was doing something "bad" (which it > never has) they would know that "freedom2be.net" is the domain to email. > (such as [EMAIL PROTECTED]) Isn't this a good idea? > > --Jason > [EMAIL PROTECTED] > > > > > > > --- > [This E-mail was scanned for viruses by Declude Virus > (http://www.declude.com)] > > --- > This E-mail came from the Declude.JunkMail mailing list. To > unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type > "unsubscribe Declude.JunkMail". The archives can be found at > http://www.mail-archive.com. > --- > [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)] --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com. --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
