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Date:      Mon, 2 Aug 1999 21:55:47 -0400 (EDT)
From:      "Crist J. Clark" <cjc@cc942873-a.ewndsr1.nj.home.com>
To:        ales@megared.net.mx (Alejandro Ramirez)
Cc:        cpeters2@home.com, freebsd-questions@FreeBSD.ORG
Subject:   Re: Relaying Denied (reject=550)
Message-ID:  <199908030155.VAA23725@cc942873-a.ewndsr1.nj.home.com>
In-Reply-To: <006c01bedd35$fa60b6c0$fca3f9cf@megared.net.mx> from Alejandro Ramirez at "Aug 2, 99 05:25:51 pm"

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Alejandro Ramirez wrote,
> Hi,
> 
> If you want to change the name of your computer to announce yourself as
> tecpro.com, then you have to edit your tecpro.com.db file in your named
> directory, and make this computer the one who responds to this domain
> something like:
> 
> @               IN      A       10.10.1.125
> 
> this line will make your server to repond to the tecpro.com domain. Also you
> will have to edit your reverse config file for this network to match this
> address:
> 
> 125     IN      PTR     tecpro.com.
> 
> This will make your server to respond inversely to the requests made by the
> mail servers. Restart named, and you are done.
> 
> BTW dont forget to use real addresses in your files.
> 
> I hope this helps...

The problem with this is that his IP address will only reverse-resolve
to _one_ of his hosted domains. And since my best guess is that mail
is being rejected because the 'From' address does not match the
reverse-lookup (a sign of a spoofer), the other domains will still
look spoofed.

Could you send a more complete (full headers, mask IPs and domains if
you want) rejcetion message? Is mail rejected for all of your hosted
domains, or just some? 
-- 
Crist J. Clark                           cjclark@home.com


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