nanog mailing list archives
Re: AOL rejecting mail from IP's w/o reverse DNS ?
From: Matthew Crocker <matthew () crocker com>
Date: Wed, 3 Dec 2003 14:15:07 -0500
On Dec 3, 2003, at 10:42 AM, Christopher X. Candreva wrote:
On Wed, 3 Dec 2003, Randy Bush wrote:you're right. it will be. people will have to clean up their in-addr.arpa. or am i missing some reason they can't, other than laziness?See, this is the war I didn't want to start again. Unless I'm thinking of adiscussion on a different list -- I was sure in the whole Verizon "spam measures hurting other servers" thread, the whole blocking w/o IN PTR records had come up, with people saying they were on hosting where they couldn't change PTR records, and the clients who couldn't get mail from small offices with Exchange servers on DSL lines where the ISP hadn'tconfigured reverse DNS . Then there was the comment on how reverse DNS wasmeaningless, and did you still run identd ?
AOL says the PTR record needs to be assigned. It doesn't specify it has to match the @domain.com in the MAIL FROM: header. Wouldn't it be enough to make sure every IP address you announce has a PTR and matching A record? Hasn't this been a requirement for MANY services for MANY years?
-- Matthew S. Crocker Crocker Communications, Inc. Vice President PO BOX 710 Greenfield, MA 01302 P: 413-746-2760 F: 413-746-3704 W: http://www.crocker.com E: matthew () crocker com
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Current thread:
- AOL rejecting mail from IP's w/o reverse DNS ? Christopher X. Candreva (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Randy Bush (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Christopher X. Candreva (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Suresh Ramasubramanian (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Daniel Senie (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Robert E. Seastrom (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Randy Bush (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Christopher X. Candreva (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Christopher X. Candreva (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Matthew Crocker (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Steven M. Bellovin (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Adi Linden (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Randy Bush (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Joe Abley (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Suresh Ramasubramanian (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Pete Ehlke (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Suresh Ramasubramanian (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Adam McKenna (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Randy Bush (Dec 03)
- Re: AOL rejecting mail from IP's w/o reverse DNS ? Adam McKenna (Dec 03)