More information on this... LD, I appreciate you looking into and working on this...
Jason Alba IT Manager tel: 208.232.8599 x323 fax: 208.232.6068 http://www.varsitycontractors.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of R. Scott Perry Sent: Thursday, March 21, 2002 6:49 PM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] MX - PTR >In the reverse lookup found at www.dnsstuff.com, it shows that I don't >have a PTR record for www.varsitycontractors.com, as well as >hostmail.varsitycontractors.com. Just a clarification here: host names and domain names don't have reverse DNS entries, only IPs do. If www.varsitycontractors.com has an A record of 63.230.118.54, then 63.230.118.54 would need the reverse DNS entry. >Well, in discussing this with the ISP, they first said that there is a >PTR entry for www.varsitycontractors.com. They are both right and wrong. Although they may have the PTR entry, it isn't in the DNS servers responsible for the 63.230.118.54 reverse DNS. >I copied some previous threads to them, but there wasn't any >instruction on how. He didn't understand that you could have distinct >PTR records on an MX (as per the dnsstuff.com DNS Report)... He was >looking in Win2kserver, DNS area, and couldn't see how to put a PTR for >MX... Also looked in Cobol server DNS app... You can't have a PTR record for an MX record. The DNS report makes sure that the mail servers have PTR records, by checking to see what the IP address of the mailservers are (using the MX records), and checking to see if those IPs have reverse DNS entries. Just ask them if they can "set up the reverse DNS for 63.230.118.54 so that it returns www.varsitycontractors.com" (and then repeat it for any other addresses as needed, if they can do it). If they can't do that, tell them you are switching to a real ISP. If they can't set up a reverse DNS entry for you, they shouldn't be providing bandwidth for you. Reverse DNS entries are technically required by the RFCs for all Internet hosts, so it sounds like they are really clueless. >One more thing, Scott, it seems that I see different info on the >reports when I go in... How often do you update the code? It is usually only updated every couple of weeks or so, and typically only for minor changes. -Scott --- Declude: Anti-virus, Anti-spam and Anti-hijacking solutions for IMail. http://www.declude.com --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/ Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
