Re: AS/400 SMTP Mail relay

["Jeffrey Silberberg" <jsilberberg@xxxxxxxxxxxxxx>]

Art,

        1.) Get rid of the AS/400 Firewall, Go to SonicWall, CISCO PIX,
CheckPoint VPN-1 anything !!

        2.) SMTP is passed through the Firewall unless you have the
"safemail" feature running and I did not think
              that it was ported into the AS/400 version of the IBM
Firewall.  So it's your AS/400 doing the dirty deed.

        3.) In most cases Relay is controlled by settings in the SMTP
server,  Have you searched the ISeries support
              sites for a good Tech Note, I know the Domino sites have them
not sure about native SMTP...

      Good Luck,
       Jeff...

----- Original Message -----
From: Art Tostaine, Jr. <art@link400.com>
To: <MIDRANGE-L@midrange.com>
Sent: Monday, February 12, 2001 3:05 PM
Subject: RE: AS/400 SMTP Mail relay


> My customer is using the As/400 firewall solution.  Isn't that the SMTP
> server that is talking to the internet?
>
> I guess applying PTF's to  the SMTP server won't help as CHGSMTPA has the
> name of the firewall as the mailrouter parameter and FIREWALL(*YES)
>
> Anyone have any ideas how we can stop the mail relay?
>
> Art Tostaine, Jr.
> CCA, Inc.
> Jackson, NJ 08527
>
> -----Original Message-----
> From: owner-midrange-l@midrange.com
> [mailto:owner-midrange-l@midrange.com]On Behalf Of Art Tostaine, Jr.
> Sent: Monday, February 12, 2001 1:59 PM
> To: MIDRANGE-L@midrange.com
> Subject: RE: AS/400 SMTP Mail relay
>
>
> So far I've applied SF52864 and SF53394, and I'm still able to relay.  I'm
> IPL'ing after SF53394 (shouldn't be required), just in case, but does
anyone
> else have any ideas?
>
> Art Tostaine, Jr.
> CCA, Inc.
> Jackson, NJ 08527
>
> -----Original Message-----
> From: owner-midrange-l@midrange.com
> [mailto:owner-midrange-l@midrange.com]On Behalf Of chrisw@bluechip.co.uk
> Sent: Monday, February 12, 2001 10:30 AM
> To: MIDRANGE-L@midrange.com
> Subject: Re: AS/400 SMTP Mail relay
>
>
> Go to http://www.abuse.net/relay.html to test if your mail server is an
> open relay.
>
>
>
> One of our customers AS/400 SMTP servers was used a number of time by
> spammers to relay junk mail.
>
> We installed PTF SF52864 to stop this.  Is there a way that we can test
> that
> we locked it down properly?
>
> Our ISP who shut us down said they have no way of testing it.
>
> Art Tostaine, Jr.
> CCA, Inc.
> Jackson, NJ 08527
>
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