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Help with open relay needed
Hi everybody,
we thought for a long time that our system (uni-paderborn.de) is fixed
against third party relay, e.g. see the test at
http://maps.vix.com/tsi/ar-test.html .
Now we got surprised that we can not pass the test that ORBS.org
is doing and that we are now to be found on some blacklist :-(
The test does the following:
...
29716r HELO relaytest.orbs.org
29716 -- policy result=0, msg: <NONE!>
29716w 250 uni-paderborn.de expected "HELO wwwhost.manawatu.net.nz"
29716r MAIL FROM: <>
29716 -- policy result=0, msg: <NONE!>
29716w 250 2.1.0 Sender syntax Ok
29716r RCPT TO: <orbs-relaytest@manawatu.co.nz>
29716 -- policy result=0, msg: <NONE!>
29716w 250 2.1.5 Recipient address syntax Ok
29716r DATA
29716w 354 Start mail input; end with <CRLF>.<CRLF>
...
and I dont know by now why we would block the mail if the mail from: was
something like<abc@def.com> and why we don't block it if it comes from: <>
:-(
Maybe somebody has an idea when he/she has a look at our config and is
faster than us rereading the manual.
--
smtpserver.conf includes the following lines:
localhost 99 ve
*.uni-paderborn.de 99 ve
\[131.234.*.*\] 99 ve
\[*\] 99 veR
* 999 veR
--
--
db/smtp-policy.src includes these lines:
. relaycustomer - senderokwithdns + message "We do
not relay for you!" acceptifmx - test-dns-rbl +
[0.0.0.0]/0 relaycustomer - senderokwithdns + acceptifmx -
test-dns-rbl +
_our_network = _full_rights
_full_rights rejectnet - relaycustnet + relaycustomer + relaytarget +
_localnames rejectnet - relaycustnet - localdomain + relaytarget +
.uni-paderborn.de = _our_network
[131.234.0.0]/16 = _our_network
--
We are still running zmailer-2.99.49p9, but I hope that we can enable the
required blocking mechanism quickly without preparing an update.
Thank you very much for helping us getting away from the blacklist.
Kind Regards,
Juergen
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Dipl.-Ing. Juergen Maniera
Universitaet-GH Paderborn Tel.: (+49) (0)5251 60-3326
FB 17, AG Softwaretechnik / IRB Fax: (+49) (0)5251 60-3714
D-33095 Paderborn email: sammy@uni-paderborn.de
Raum: E3.125 http://www.uni-paderborn.de/cs/sammy.html
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