In <[EMAIL PROTECTED]>,
on 09/11/2002 at 06:37 AM,
   [EMAIL PROTECTED] said:


>A client of ours has a HP Netserver E50 running RH 6.1. There server is
>an open relay.  I have looked on the web, and I have noticed that the
>best way to fix the problem is to upgrade the O/S to a new version,
>however is there anything one can do to stop the server from being an
>open relay without a major upgrade of the O/S.

>The have sendmail-8.9.3-15 installed.

It is probably possible to configure 8.9.3 to eliminate open relaying.

When I had to do it, however, I found it was a LOT easier to upgrade
sendmail.  The relay blocking portions of sendmail were a big part of the
change to 8.10.  The current version is 8.12.x.

There's no reason to upgrade the OS, or even take down the machine.  Just
rebuild sendmail with a current version and be sure you set the cf file up
to block relaying.

>I'm alarmed that their /etc/access file  is like the following

># Check the /usr/doc/sendmail-8.9.3/README.cf file for a description # of
>the format of this file. (search for access_db in that file) # The
>/usr/doc/sendmail-8.9.3/README.cf is part of the sendmail-doc # package.
>#
># by default we allow relaying from localhost...
>localhost.localdomain           RELAY
>localhost                       RELAY
>127.0.0.1                       RELAY

>Is the above the problem? - How can I fix it?

You want relaying from localhost.  That means that mail originating on the
local machine will go out.




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