On Fri, Mar 14, 2008 at 03:57:14PM +0900, Michael Heydon wrote: > > Sent via a host with perfectly valid DNS entries. > > > I assume that the rejection refers to a message coming from > "82-69-6-203.dsl.in-addr.zen.co.uk" which is valid but contains the > dirty word "dsl".
Or maybe (guesswork here) that the IP address of the client was something like 82.69.6.203, or 203.6.69.82, and therefore the PTR has clearly been auto-generated from the IP address. Which to my mind is just as bad as having no PTR at all (your opinion may differ). I choose, on my own personal mail server, to reject mail from clients with no PTR, or a generic PTR (as above), too. That's my choice; yes, some non-spam mail may be rejected. I'm aware of that. But I find it a useful technique. -- Dave Evans http://djce.org.uk/ http://djce.org.uk/pgpkey
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