I am trying to make sure my mail server is set up correctly. One of the steps is to ensure that reverse DNS works. We email from ...@domain.com. When I test rDNS using nslookup i get:
$ nslookup yast.com Server: 192.168.80.1 Address: 192.168.80.1#53 Non-authoritative answer: Name: domain.com Address: 18.104.22.168 $ nslookup 22.214.171.124 Server: 192.168.80.1 Address: 192.168.80.1#53 Non-authoritative answer: 126.96.36.199.in-addr.arpa name = www2.domain.com. Authoritative answers can be found from: 193.156.64.in-addr.arpa nameserver = ns3.m5hosting.com. 193.156.64.in-addr.arpa nameserver = ns2.m5hosting.com. ns3.m5hosting.com internet address = 188.8.131.52 ns2.m5hosting.com internet address = 184.108.40.206
www2.domain.com is the name of the server (probably can be changed).
Will mail servers at google, aol, yahoo, etc view this as suspicious?