Double Irony! (was Re: [linux-elitists] ruben's stupid filter)

Karsten M. Self
Sun Mar 24 17:34:08 PST 2002

on Sun, Mar 24, 2002, Dan Wilder ( wrote:


> Unfortunately the RFCs appear to prohibit validating the actual
> sending host against DNS and then declining mail based on that
> validation.  That'd catch a large part of the spam that comes in.
> Aside from RFC considerations, this is not feasible on pragmatic
> grounds: way too many legitimate hosts with broken DNS.

OTOH, if broken DNS started resulting in, e.g.:  mass email failures,
sites would clean up right fast.

A long time ago, on a list far, far away, someone asked how they could
prevent all the "WARNING: ..." messages showing up in his program logs.
My reply:  fix your coding errors.

Bouncing ill-formed mail is *not* a bad thing.  Standards without
consequences are not standards.


Karsten M. Self <>
 What part of "Gestalt" don't you understand?          
   Keep software free.         Oppose the CBDTPA.         Kill S.2048 dead. 
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