On Tue, 21 Mar 2006, Randy Haley wrote: > I am attempted to configure our gnatbox so that when a user at our domain > sends an email, email servers that require a PTR on the mail server will > accept the mail. > > The headers look like this: Received: from mail.ourbizzness.biz (unknown > [X.X.46.50]) > > I erased the first part of the ip address. X.X.46.50 is the ip address of > the external network. How do I get the unknown out of the header? > There must be a correct reverse DNS entry for X.Y.46.50.
The difficulty is generally that folks don't own a full class C IP range so the owner must correctly delegate the lookup or configure their lookup to resolve to your name. If they delegate, then your DNS server must be configured to respond to the delegations. If you use gnatbox as your DNS, good luck. I've never been able to figure how to configure the reverse lookups ... just get error messages ... but perhaps the latest version works. In any case, www.dnsstuff.com is a good way to test what is happening. My plan ... next time I upgrade, I'm going to use the 30 day support window to get help resolving the various DNS problems I continue to see. The mangled reverse lookup now provided provides enough so that chartermi no longer bounces my email and that was my primary concern. I can't send to AOL any longer but the only AOL user I care about is my wife and I don't need to send her email. ;-:) Dave Morris ------------------------------------------------------ To unsubscribe: [EMAIL PROTECTED] For additional commands: [EMAIL PROTECTED] Archive: http://archives.gnatbox.com/gb-users/
