Re: AS/400 SMTP Mail relay

[Larry Bolhuis <lbolhuis@xxxxxxxxxx>]

As I recall you must also create  file QTMSADRLST in QUSRSYS:

CRTSRCPF FILE(QUSRSYS/QTMSADRLST) CCSID(500)

Then a member ACCEPTRLY:

STRSEU SRCFILE(QUSRSYS/QTMSADRLST) SRCMBR(ACCEPTRLY)

Then in the member put in local address range and mask that is ALLOWED
to relay (that being your local users) as:

10.0.0.0 255.0.0.0

All others will be blocked from relay.

 - Larry 


"Art Tostaine, Jr." wrote:
> 
> 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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-- 
Larry Bolhuis
Arbor Solutions, Inc.
(616) 451-2500
(616) 451-2571 -fax
lbolhuis@arbsol.com
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