Re: [Exim] Problems caused by localhost entry in Received

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Autor: Vincent Lefevre
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A: Exim Mailing List
Assumpte: Re: [Exim] Problems caused by localhost entry in Received
On 2004-01-06 11:10:37 +0100, Sander Smeenk wrote:
> Quoting Toralf Lund (toralf@???):
> > Received: from localhost.localdomain ([127.0.0.1] helo=mydomain)
> > Now, this seems to cause problems with some blacklists etc. on the net;
> > apparently they think "localhost" is evil.
> > Questions:
> > 1. Why?
>
> 'localhost' can't be traced back if the message received is classified
> as spam. I guess that's the only reason to think of localhost as evil.


You're wrong. The administrator of the machine can. And the IP address
of that machine will be in another Received header, so I don't see any
problem to trace the message.

> > 2. Is there a good way to avoid including this localhost reference?
>
> Can you have your mailer connect to $your_internet_ip instead of
> 127.0.0.1 or localhost? That might make a difference.


And what if the machine is on a private network (e.g. with a 192.168.*
IP address)? Requiring a public IP address for all Received headers is
silly.

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