[Mimedefang] Revisit: Filtering on HELO

Philip Prindeville philipp_subx at redfish-solutions.com
Sun Mar 25 14:26:40 EST 2007


David F. Skoll wrote:
> Philip Prindeville wrote:
>
> [...]
>
>   
>> My read on that code is that is what I described is exactly
>> what happens...
>>     
>
> Actually, if you run tests, you will see that Sendmail uses the host
> name as the HELO argument unless you use the "h" modifier in
> ClientPortOptions.  In the latter case, it will use the name of
> the outgoing interface if it can resolve it.
>
>
>   

That still goes towards my point, which was that the host
uses the address of the interface that's outbound for the
connected socket.

Remember: the original point was that if a host is
multi-homed {A.A.A.A, B.B.B.B, C.C.C.C}, that it is
incorrect behavior to say "EHLO [B.B.B.B]" on a
socket that is bound to any local interface *other
than* B.B.B.B.

-Philip




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