Re: [Asrg] Ban the bounce; improved challenge-response systems

[Kee Hinckley <nazgul@somewhere.com>]

At 6:11 PM -0400 4/9/03, waltdnes@waltdnes.org wrote:
>   Practical question... (Theoretical types can stick their fingers in
> their ears while I ask)  how many MTAs (besides Qmail with "Return-Path"
All MTAs are supposed to write Return-Path before the final delivery. 
CommuniGate and Sendmail certainly do.  I was unable to find anything 
in the specs indicating what should happen if there was already a 
Return-Path there (forgery attempt?), but it seems to me that the MTA 
should remove the old one (or rename it).  I don't know what common 
practice is though.  The only mailer I've seen that doesn't generate 
Return-Path is Qualcomm's Mac MTA--and that may have changed in newer 
versions.

> headers) make this info available to the MUA ?  And in those cases, how
> many MUAs would know about it ?  The roblem with an end-user C/R system
I don't believe there's any standard that specifies what to do with a 
Return-Path if you are an MUA.  Certainly most aren't going to 
display it.  Eudora can if you tell it to (I have it turned on). 
Outlook probably can.  I don't think OE lets you change what headers 
get displayed.
--
Kee Hinckley
http://www.messagefire.com/          Junk-Free Email Filtering
http://commons.somewhere.com/buzz/   Writings on Technology and Society

I'm not sure which upsets me more: that people are so unwilling to accept
responsibility for their own actions, or that they are so eager to regulate
everyone else's.
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