FW: Problems with bad header 'from'

[Marek Kowal <marek.kowal@portal.onet.pl>]

Ups, I've sent it to Arnt only. Sorry.

m.

-----Original Message-----
From: Marek Kowal 
Sent: 25 czerwca 2003 12:08
To: 'Arnt Gulbrandsen'
Subject: RE: Problems with bad header 'from'


This is a topic from a year ago... but needs refreshing. Specifically, how
can I bounce the message (where in router and how?), that does not contain
@domain in From: field? I see more and more such messages coming to my site.


Cheers,
Marek

ps. Do you see such behaviour as well? If so, how do _you_ handle it?

> -----Original Message-----
> From: Arnt Gulbrandsen [mailto:arnt@gulbrandsen.priv.no] 
> Sent: 8 sierpnia 2002 15:00
> To: Bartosz Klimek
> Cc: zmailer@nic.funet.fi
> Subject: Re: Problems with bad header 'from'
> 
> 
> Bartosz Klimek <bartoszk@onet.pl>
> > While it seems to be a correct behaviour, it is very 
> problematic for our
> > employees. Is there an easy way to make the router to 
> replace the invalid
> > 'from' field with the 'from' e-mail address from the envelope?
> 
> Not that I know about. However, I would be very cautious 
> about doing that.
> 
> Suppose that the From field is illegal, and that the envelope from and
> the Reply-To field differ. What should the router do? (Yes, I've seen
> cases where both would be the "right" choice.)
> 
> Or even better: There's a Sender field, and it too is different. What
> should the router guess?
> 
> My personal choice would probably be to bounce the message. 
> If you can't
> deal with a message reasonably, an error message for the sender is a
> respectable solution.
> 
> --Arnt
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