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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW-1] Exchange server being used for spam?
i just tried to relay an email to myself via your exchange server and it denied smtp relaying. But i attempted the simplest form of mail relaying. What you can do is the following from your exchange server: Telnet to relay-test.mail-abuse.org to the normal telnet port. It will try 19 way to do mail relay true your exchange server and give you the status in the telnet windows as it does. If it finally say your exchange server doesn't accept to relay mail you can be almost sure it never accept to relay mail... In the case of my own mail server it give me output like this (It's just one part of the output) Telnet relay-test.mail-abuse.org Connecting to 205.236.42.1 ... <<< 220 YOU ARE MONITORED, UNAUTHORIZED ACCESS PROHIBITED >>> HELO cygnus.mail-abuse.org <<< 250 Hello cygnus.mail-abuse.org, pleased to meet you :Relay test: #Quote test >>> mail from: <[email protected]> <<< 250 <[email protected].... Sender ok >>> rcpt to: <"[email protected]"> <<< 554 Mailbox unavailable. >>> rset <<< 221 Closing connection [Skip most test] <<< 220 YOU ARE MONITORED, UNAUTHORIZED ACCESS PROHIBITED >>> HELO cygnus.mail-abuse.org <<< 250 Hello cygnus.mail-abuse.org, pleased to meet you :Relay test: #test 19 >>> mail from: <[email protected]> <<< 250 <[email protected]... Sender ok >>> rcpt to: <[email protected]> <<< 554 Mailbox unavailable. >>> rset <<< 221 Closing connection >>> QUIT Tested host banner: 220 YOU ARE MONITORED, UNAUTHORIZED ACCESS PROHIBITE D System appeared to reject relay attempts Yves Belle-Isle ----- Original Message ----- > > At 12:51 PM 11/6/01 -0800, you wrote: > >I think my Exchange Server is still being used for spamming again. I turned > >off mail relaying from following the steps in this article. However, when I > >look through my FW logs, I see outside IP's accessing the mail server using > >the smtp service. I did a reverse lookup on some of the IP's and they return > >this: =============================================== To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ===============================================
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