Not sure if there is anyone with enough knowledge to help me out here.
I need a little help on DNS.
I have a friend who wants to setup an Exchange Server, his Broadband connection has static IP addresses. I have loads of experience in MS Exchange and quite a bit on Internal DNS servers, but this guy was harping on about getting the ISP to set a reverse DNS entry to ensure they do not get marked as spam.
I have worked with Exchange for many years and have my outbound emails going through an SMTP connector and have never had any problems despite not having a reverse DNS record setup on my ISP.
My question is, why would this guy want a reverse DNS entry, why have i never had a single problem in the past without one?
I assume it is because i have an SMTP connector setup routing all my emails through a relay, and he is thinking of setting exchange up without this?
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