Can anyone help me please explain rDNS to my wireless Internet provider so that he can give me an rDNS entry? My provider allows me to host my own website, and I have a fixed IP, but there is no rDNS entry for my IP. Consequently, any mail that I send is labeled as spam. I am located in a rural area, and my provider supplies broadband wireless.
I have tried sending my provider information on what rDNS is, but the guy that runs things seems completely perplexed by what I am asking for.
Is this stuff really complicated for an ISP to set up? Is it something that can be simply implemented? Is it possible that this is beyond his control even though he is assigning me the IP?