Question : need a step by step on how to setup Reverse DNS for Exchange mail server.

for years our mail server has been using a smart host to relay all outgoing comapny emails. However, due to some changes we will no longer be using the smart hosts. So we need to figure out how to setup the DNS and Reverse DNS so that when our server starts to send emails directly other email domains won't block us after doing a reverse lookup .

I'm very confused about how the revese dns lookups work and who we would have to contact to make this happen. We have Comcast business for our ISP and we have windows 2003 small business server.


thanks in advance

Answer : need a step by step on how to setup Reverse DNS for Exchange mail server.

Everything I've found about Comcast business indicates that they do set PTR / Reverse Lookup records for clients.

I'm afraid I couldn't find any articles from Comcast themselves to support that, some ISPs have rather more of a knowledge-base publicly available.

I do suggest you give them another try. It wouldn't be the first time I've had someone ring once, get a "eh? no. go away" type response, then ring again and get the help that was needed from a better employee.

Chris