>I swear I saw my ISP guy put a reverse lookup entry in his DNS server. >However, when I went to DNS stuff and put in >hostmail.varsitycontractors.com, selected ALL, it didn't show a PTR >entry. > >Why would this happen? (Does ALL mean... All?)
That's because PTR entries are reverse DNS entries, and take an IP and return a hostname. So hostmail.varsitycontractors.com can't have a PTR record. Also, the DNS servers used for varsitycontractors.com may well be different than the DNS servers for your IP(s), so it's quite possible that your DNS servers may not know about the PTR record, even if it does exist. To find out if a PTR record exists, you need to use the IP address. This could be done through nslookup or dig, for example, or using the Reverse DNS lookup at http://www.DNSstuff.com (which also shows you how the lookup is done). -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/
