I have IIS 6 SMTP server running on 2003 box.
I am running a webserver (IIS) on the same system.
I want the SMTP server to deliver mail for my webserver.
I have it working fairly well - my only problem/confusion is getting a Reverse DNS record setup.
First, while this is all on the same machine, I believe it has been suggested that I use a separate IP address for the SMTP server. I am doing this and have set DNS to point smtp.mydomain.com to this IP. Good?
Now - I have to contact my ISP to have them make a Reverse DNS entry for my smtp server.
If the ip of smtp.mydomain.com is 126.96.36.199 - what is the proper request to make of my ISP?
Which (if any!) of the following do I want:
- 188.8.131.52.in-addr.arpa ---> 184.108.40.206
- 220.127.116.11.in-addr.arpa ---> smtp.mydomain.com
- 18.104.22.168.in-addr.arpa ---> mydomain.com
Actually - would it be 22.214.171.124.in-addr.arpa.mydomain.com?
Anyway, this is the only mail server I plan to set up on this server - so send for one domain.
If I am way off - please correct!