Re: [Asrg] Re: RMX evaluation

[J C Lawrence <claw@kanga.nu>]

On Thu, 8 May 2003 11:19:54 -0600 (MDT) 
Vernon Schryver <vjs@calcite.rhyolite.com> wrote:

> I searched for but failed to find Paul Vixie's short mail message
> describing the idea.  My recollection and perhaps slight elaboration
> of it is:

Thanks, this is preferable to RMX.

> To determine if an STMP client is authorized to send mail for the
> sender domain name in the envelope Mail_From field

I'd be happier if a straight forward check of the HELO==IP were added as
a check.

>   - This scheme is better than the RMX proposal because it has
> achieves the same goal, does not require the standardization and
> implementation of a new DNS RR in DNS server software and MTAs.  It
> requires only small changes in system administration conventions and
> modest changes in MTAs.

It also has the advantage of not changing its behaviour significantly as
penetration thresholds grow.

>   - I do not like this scheme, because I do not agree with the goal of
> forcing people to use the same going as incoming ISPs.

Agreed.

-- 
J C Lawrence                
---------(*)                Satan, oscillate my metallic sonatas. 
claw@kanga.nu               He lived as a devil, eh?		  
http://www.kanga.nu/~claw/  Evil is a name of a foeman, as I live.
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