The people who gave you your IP address range have to delegate the reverse DNS for your subnets to you. Until then, the world doesn't know to ask your servers for the reverse lookup info.
This process is simple, and shouldn't take long for your upstream provider to complete. --Daryl ----- Original Message ----- From: "Keith Purtell" <[EMAIL PROTECTED]> To: "KCFusion (E-mail)" <[EMAIL PROTECTED]> Sent: Thursday, August 29, 2002 2:39 PM Subject: [KCFusion] OT- DNS question reverse lookup > I'm trying to fix our flawed DNS record which lacks a reverse lookup. We do our own DNS with > Microsoft DNS on NT 4 (Yes I know it's not a great DNS product). The intent here is to head off > potential mail delivery problems, since some servers won't accept email if there is no reverse > lookup. I read several docs (including http://www.stamey.nu/DNS/DNS-MSReverseLookups.asp) on how to > create the record. Followed their directions then updated the server records and also > stopped/started the MS DNS service. Yet when I run a test at dnsreport.com I not only keep flunking, > but they ask for a DNS record using a name format which I was told was illegal, one which uses four > octets instead of three. Here's the message from dnsreport, followed by my format (name only, does > not show PTR contents). Can someone help? > > ERROR: One of more of your mail server(s) have no reverse DNS (PTR) entries (if you see "Timeout" > below, it may mean that your DNS servers did not respond fast enough). RFC1912 2.1 says you should > have a reverse DNS for all your mail servers. It is strongly urged that you have them, as many > mailservers will not accept mail from mailservers with no reverse DNS entry. The problem MX records > are: > 10.42.116.65.in-addr.arpa [No reverse DNS entry (rcode: 3 ancount: 0)] > > > 42.116.65.in-addr.arpa > > > Keith Purtell, Web/Network Administrator > VantageMed Operations (Kansas City) > Email: [EMAIL PROTECTED] > > > CONFIDENTIALITY NOTICE: This email message, including any attachments, is for the sole use of the > intended recipient(s) and may contain confidential and privileged information. Any unauthorized > review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please > contact the sender by reply email and destroy all copies of the original message. > > > > ______________________________________________________________________ > The KCFusion.org list and website is hosted by Humankind Systems, Inc. > List Archives........ http://www.mail-archive.com/cf-list@kcfusion.org > Questions, Comments or Glowing Praise.. mailto:[EMAIL PROTECTED] > To Subscribe.................... mailto:[EMAIL PROTECTED] > To Unsubscribe................ mailto:[EMAIL PROTECTED] > > ______________________________________________________________________ The KCFusion.org list and website is hosted by Humankind Systems, Inc. List Archives........ http://www.mail-archive.com/cf-list@kcfusion.org Questions, Comments or Glowing Praise.. mailto:[EMAIL PROTECTED] To Subscribe.................... mailto:[EMAIL PROTECTED] To Unsubscribe................ mailto:[EMAIL PROTECTED]
