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problem with relaying
Hello,
Suddenly for us, it turned out that our Zmailer server has serious problem
with passing relay tests from mail-abuse.org. Therefore our mail server
landed on mail-abuse's relay blacklist as potential spammers tool.
There are seventeen tests on mail-abuse which one can check by the command:
telnet mail-abuse.org
submitted from his mail server.
Zmailer ver. 2.99.54, did pass all but the test number thirteen. In
/var/log/mail/smtpserver for the test number thirteen:
...
PUwv23193w 250 2.0.0 2.0.0 Reset processed, now waiting for MAIL command
PUwv23193r mail from: <spamtest@mailserver.our.domain.pl>
PUwv23193w 250 2.1.0 Sender syntax Ok
PUwv23193r rcpt to: <"nobody@mail-abuse.org"@[195.1.2.3]>
PUwv23193w 250 2.1.5 Recipient address syntax Ok; rcpt=<"nobody@mail-abuse.org"@[195.1.2.3]>
PUwv23193r QUIT
PUwv23193w 221 2.0.0 mailserver.our.domain.pl Out
...
where 195.1.2.3 is our mailserver IP number.
The "rcpt to" address has been accepted - although it shouldn't be according
to mail-abuse.
My question is:
How to protect Zmailer's smtpserver against allowing addresses
like "*@*"@[our.IP], for example: "nobody@mail-abuse.org"@[195.1.2.3]
Regards,
tjk
--
-- Tomasz Jordan Kruk, PhD -----------------------------------------------
_/_/_/ _/_/_/ _/ _/ T.Kruk@ia.pw.edu.pl http://www.ia.pw.edu.pl/~tkruk
_/ _/ _/_/ Warsaw University of Technology (IAiIS PW, COI PW)
_/ _/_/ _/ _/ IAiIS: +48 22 660 79 22 COI: +48 22 660 53 88