How to setup Reverse DNS on our email server
Posted on 2011-04-24
I need some help to setup reverse DNS server for our mail server. Before when I used DNS Tools it showed that we had Reverse DNS Server.
Now it says we dont and I dont know why
IP on mail server is: 18.104.22.168
We dont have our own DNS Server on our server
in Imail Software we use, we have to key in DNS Servers and we use our ISP's DNS Servers:
22.214.171.124 and 126.96.36.199
We have 5 domain names + on our server and they are all sending with our smtp server
2 examples are
When we send mails to some customers we get:
>Server response to MAIL FROM:
>550 5.7.1 Connections not accepted from servers without a valid sender
>domain.nlpi127 Fix reverse DNS for 188.8.131.52
We are using "gratisdns.dk" for all our dns records for all the domains, so I guess I can add something in there somewhere, but I have no idea what
At the moment I have one thing saying:
v=spf1 a mx ip4:184.108.40.206 mx:e-advice.dk ~all
Can anyone advice me what to do from here?
Any concrete examle on what to write under where in order to get a reverse DNS for our IP that will help all our domains sending from it?