On Fri, 22 May 2009, Matus UHLAR - fantomas wrote:

I was mentioning cases where someone compares HELO to FQDN and rejects
connections if they do not match. That was indicated by the message (even
with different wording).

Ok, agreed. If they don't match don't reject, just give that a point.

However, a FQDN in the HELO being unresolvable is a valid reason to reject. Per RFC2821 3.6 it MUST resolve.

--
 John Hardin KA7OHZ                    http://www.impsec.org/~jhardin/
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 32 days since 9th Circuit incorporated 2nd Amdt - MSM still silent

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