Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

Troubleshooting
Research
Professional Opinions
Ask a Question
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

troubleshooting Question

Reverse DNS entries for MX records

Avatar of a1doors1
a1doors1 asked on
Exchange
4 Comments1 Solution617 ViewsLast Modified:
Experts,

When I go to dnsreport.com I get this error about reverse dns records:

RROR: The IP of one or more of your mail server(s) have no reverse DNS (PTR) entries/* (if you see "Timeout" below, it may mean that your DNS servers did not respond fast enough)*/. RFC1912 2.1 says you should have a reverse DNS for all your mail servers. It is strongly urged that you have them, as many mailservers will not accept mail from mailservers with no reverse DNS entry. You can double-check using the 'Reverse DNS Lookup' tool at the DNSstuff site if you recently changed your reverse DNS entry (it contacts your servers in real time; the reverse DNS lookups in the DNS report use our local caching DNS server). The problem MX records are: 205.89.66.64.in-addr.arpa [No reverse DNS entry (rcode: 3 ancount: 0) (check it)]

How do I go about fixing this?
ASKER CERTIFIED SOLUTION
Avatar of Exchange_Admin
Exchange_Admin

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Commented:
This problem has been solved!
Unlock 1 Answer and 4 Comments.
See Answers