On Fri, 15 Jun 2012, Matt Simerson wrote: > > In my experience, reverse DNS is frequently managed (or, frequently, not > > managed) by an ISP, not by the admin of the mail server. > > In my experience, every ISP that provides clients with dedicated IPs > also provides the client with the ability to manage the reverse DNS for > them.
My ISP (a smallish not-for-profit affair) claims to be unable to do that. I've heard of and seen other ISPs which fail also. I agree that most ISPs offer this service. A single exception is sufficient to say this can't be guaranteed. > Either via a support request or automated means. I did when I > owned my ISP in the early 90s, and every ISP and hosting provider I've > ever worked for or with since does as well. The good providers even > provide rwhois on the delegated IP space and automatically populate it > with the clients billing data. (see RFC 1941). Yes, good providers do that.
