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"Attempt to fake stamp by" syslog errors

2001-07-06 23:01:19
Hi all,

I've got an interesting issue with my procmail/postfix combo [the error is
indeed a procmail error, hence me posting to this list and not the postfix
one].

First off: procmail v3.15.1 2001/01/08, postfix (Release-20010228) running
under linux, 2.4.3. 

procmail is functioning ok, but producing "Attempt to fake stamp by
<username>" in my mail log. The linux box is host.subnet.samedomain.com
but I want mail to look like it is coming from .samedomain.com, however,
the user@ part may not match. Using postfix's sender_canonical_maps I've
mapped out a particular test user like this:

vjl(_at_)host(_dot_)subnet(_dot_)samedomain(_dot_)com 
lamonica(_at_)samedomain(_dot_)com         

[both addresses are valid, in fact the lamonica@ one forwards to the vjl@
one]

procmail is my MTA, being called as such:

 ("|/usr/bin/procmail -o -a $DOMAIN -d $LOGNAME")

Am I to understand that the best solution is to get rid of the '-o' arg?
Doesn't this open me to let folks on my box completely falsify their
 From_ headers? Or am I just completely confused?

Any enlightenment would be most appreciated..

/vjl/

-- 
Vince J. LaMonica    // T e a m    // Photographer: aviation, sports,
vjl(_at_)cullasaja(_dot_)com  XX/ A M I G A  // nature, art, travel, documentary

       This e.mail was composed on Jul 6, 2001 at 10:45pm PDT.

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