Hi Folks,
Recently I went to http://www.mailradar.com/openrelay/ and failed three tests. These tests try "manual" routing and my server accepted and relayed three of them as described below in the test results. How do I prevent my exchange server from relaying addresses in these forms?
Thanks for the help,
Chris.
[Method 7]
<<< 220 TCLC.org Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Thu, 27 Feb 2014 10:06:44 -0800
>>> HELO mailradar.com
<<< 250 TCLC.org Hello [193.230.245.6]
>>> MAIL FROM: <antispam@[107.128.74.229]>
<<< 250 2.1.0 antispam@[107.128.74.229]....Sender OK
>>> RCPT TO: <"relaytest@mailradar.com">
<<< 250 2.1.5 "relaytest@mailradar.com"@TCLC.org
>>> QUIT
<<< 221 2.0.0 TCLC.org Service closing transmission channel
[TEST NOT PASSED]
<<< 220 TCLC.org Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Thu, 27 Feb 2014 10:06:44 -0800
>>> HELO mailradar.com
<<< 250 TCLC.org Hello [193.230.245.6]
>>> MAIL FROM: <antispam@[107.128.74.229]>
<<< 250 2.1.0 antispam@[107.128.74.229]....Sender OK
>>> RCPT TO: <"relaytest@mailradar.com">
<<< 250 2.1.5 "relaytest@mailradar.com"@TCLC.org
>>> QUIT
<<< 221 2.0.0 TCLC.org Service closing transmission channel
[TEST NOT PASSED]
[Method 8]
<<< 220 TCLC.org Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Thu, 27 Feb 2014 10:06:46 -0800
>>> HELO mailradar.com
<<< 250 TCLC.org Hello [193.230.245.6]
>>> MAIL FROM: <antispam@[107.128.74.229]>
<<< 250 2.1.0 antispam@[107.128.74.229]....Sender OK
>>> RCPT TO: <"relaytest%mailradar.com">
<<< 250 2.1.5 "relaytest%mailradar.com"@TCLC.org
>>> QUIT
<<< 221 2.0.0 TCLC.org Service closing transmission channel
[TEST NOT PASSED]
<<< 220 TCLC.org Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Thu, 27 Feb 2014 10:06:46 -0800
>>> HELO mailradar.com
<<< 250 TCLC.org Hello [193.230.245.6]
>>> MAIL FROM: <antispam@[107.128.74.229]>
<<< 250 2.1.0 antispam@[107.128.74.229]....Sender OK
>>> RCPT TO: <"relaytest%mailradar.com">
<<< 250 2.1.5 "relaytest%mailradar.com"@TCLC.org
>>> QUIT
<<< 221 2.0.0 TCLC.org Service closing transmission channel
[TEST NOT PASSED]
[Method 14]
<<< 220 TCLC.org Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Thu, 27 Feb 2014 10:06:57 -0800
>>> HELO mailradar.com
<<< 250 TCLC.org Hello [193.230.245.6]
>>> MAIL FROM: <antispam@[107.128.74.229]>
<<< 250 2.1.0 antispam@[107.128.74.229]....Sender OK
>>> RCPT TO: <mailradar.com!relaytest>
<<< 250 2.1.5 mailradar.com!relaytest@TCLC.org
>>> QUIT
<<< 221 2.0.0 TCLC.org Service closing transmission channel
[TEST NOT PASSED]
<<< 220 TCLC.org Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Thu, 27 Feb 2014 10:06:57 -0800
>>> HELO mailradar.com
<<< 250 TCLC.org Hello [193.230.245.6]
>>> MAIL FROM: <antispam@[107.128.74.229]>
<<< 250 2.1.0 antispam@[107.128.74.229]....Sender OK
>>> RCPT TO: <mailradar.com!relaytest>
<<< 250 2.1.5 mailradar.com!relaytest@TCLC.org
>>> QUIT
<<< 221 2.0.0 TCLC.org Service closing transmission channel
[TEST NOT PASSED]
Thanks for the help,
Chris.
