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From: Victor Duchovni (no email)
Date: Thu Mar 01 2007 - 00:30:10 EST
On Thu, Mar 01, 2007 at 04:30:03AM +0000, Duane Hill wrote:
> On Wed, 28 Feb 2007, Adam C. Mathews wrote:
>
> >reject_unknown_reverse_client_hostname
> >
> >Am I understanding correctly that this looks for a reverse DNS entry for
> >a connecting IP, and if no such record exists it denies the mail?
>
> Correct.
>
> >This does NOT check that the reverse matches the forward entry correct
> >(i.e. it is a fairly conservative check)...
>
> No. However, it does enforce the fact there must be an A record for the
> host name returned from looking up the IP address. If not, the message
> will be rejected with a 450 code by default.
No, it only checks that the reverse name exists, no forward lookup
is made.
-- Viktor. Disclaimer: off-list followups get on-list replies or get ignored. Please do not ignore the "Reply-To" header. To unsubscribe from the postfix-users list, visit http://www.postfix.org/lists.html or click the link below: <mailto:?body=unsubscribe%20postfix-users> If my response solves your problem, the best way to thank me is to not send an "it worked, thanks" follow-up. If you must respond, please put "It worked, thanks" in the "Subject" so I can delete these quickly.
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