On Mon, Apr 05, 2004 at 11:53:15PM +0200, Arnold Nipper wrote: > >>of course this server does have a reverse mapping. But this reverse > >>mapped doamin does not have an MX record. > > > > Does it have an A RR? > > It also does have an A RR. And the forward mapping does also match the > IP address.
OK, so the check is even broken in what it probably tries to verify... that the reverse-domain of the sender IP would (possibly) be able to receive mail (bounces). > > Anyway... it's a heuristic which definately does give false positives. > > The only requirement is that IF a domain/host accepts mail there MUST be > > a postmaster@ address. > > In this case the host *sends* mail ... Sure. I was discussing the requirements for domains regarding email. In this specific case, "domain" being the domain of the PTR of the sending MTA host. Regards, Daniel
