Ralph Angenendt wrote:
Your problem - if you actually want to solve it instead of tossing the blame to others like yahoo is...
# host mail.creativeprogramdesigners.com mail.creativeprogramdesigners.com has address 72.35.68.58
# host 72.35.68.58 58.68.35.72.in-addr.arpa domain name pointer creativeprogramdesigners.com.
the forward doesn't match the reverse - it's that simple. Why not just fix it?
Because it is *NOT* needed. I have several machines which have lots of A records for just one ip address. But only one name when I do a reverse lookup. Anyone checking for that shouldn't be allowed to receive mail.
Mail isn't supposed to be rejected for this, but some places probably do. A more correct approach is to have one name with the A record and the matching ptr and make all of the other names CNAMEs.