Hi, I have to call up my ISP to set teh reverse DNS to my host name. however is my hostname the servers name which i put webserver1.mydealsexpress.com or is it also mail.mydealsexpress.com this is for my smtp banner to match. THank you Ben
also besides my isp needing to update on their end. do i have to do anything? are my dns settings correct? A mail.mydealsexpress.com. 96.84.33.132 0 3600 A mydealsexpress.com. 96.84.33.132 0 3600 A ns1.mydealsexpress.com. 96.84.33.132 0 86400 A ns2.mydealsexpress.com. 96.84.33.133 0 86400 A ns3.mydealsexpress.com. 96.84.33.132 0 86400 A webserver1.mydealsexpress.com. 96.84.33.132 0 86400 A www.mydealsexpress.com. 96.84.33.132 0 3600 CNAME ftp.mydealsexpress.com. mydealsexpress.com. 0 86400 MX mydealsexpress.com. mail.mydealsexpress.com. 10 3600 MX webserver1.mydealsexpress.com. mail.mydealsexpress.com. 10 86400 NS mydealsexpress.com. ns1.mydealsexpress.com. 0 3600 NS mydealsexpress.com. ns2.mydealsexpress.com. 0 3600 NS mydealsexpress.com. ns3.mydealsexpress.com. 0 86400 PTR 132.33.84.96.in-addr.arpa. mydealsexpress.com. 0 86400 PTR 132.33.84.96.in-addr.arpa. 96-84-33-132-static.hfc.comcastbusiness.net. 0 86400
Instead of using all a records for subdomain pointint to the IP why not using cname records to point to the main domain? So you'll ahve to change the IP at fewer places if it changes.
Use the Name from "postconf myhostname" for the PTR-Record. You don`t ptr-records in your dns-zone and can`t use more then one name for each IP with ptr.
