RE: Open Relay on exchange 2000
- From: "Allen, Chris" <CAllen@xxxxxxxxxxxxxxxx>
- To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
- Date: Thu, 18 Sep 2003 11:21:35 -0400
We do, but I have verified their settings as well. It looks like
possibly it is relaying because the firewall is passing its internal
address as the sender. One suggestion was to change "only the list
below" with the internal IP range to "All except the list below" and add
the internal IP of the firewall. I will give that a shot and let you
know. If this is the solution, feel free to add it to your article.
My IT team got this information from the following:
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=u9Q3
TwpeDHA.1760%40TK2MSFTNGP09.phx.gbl&rnum=1&prev=/groups%3Fhl%3Den%26lr%3
D%26ie%3DUTF-8%26oe%3DUTF-8%26q%3Dprevent%2Bopen%2Brelay%2Bexchange%2B20
00%2Bbehind%2Bfirewall
-----Original Message-----
From: Mark Fugatt [mailto:mark@xxxxxxxxx]
Sent: Thursday, September 18, 2003 9:57 AM
To: [ExchangeList]
Subject: [exchangelist] RE: Open Relay on exchange 2000
http://www.MSExchange.org/
Yes, you are indeed an open relay, unplug your Exchange server NOW, read
my
article again and double-check all your settings, do you have any SMTP
Connectors?
Mark Fugatt
MCT, MCSE, Microsoft Exchange MVP
Pentech Office Solutions Inc
Tel: 585 586 3890
Cell: 585 576 4750
Fax: 585 249 0316
www.4mcts.com
www.exchangetrainer.com
-----Original Message-----
From: Chris Allen [mailto:callen@xxxxxxxxxxxxxxxx]
Sent: Thursday, September 18, 2003 9:40 AM
To: [ExchangeList]
http://www.MSExchange.org/
I have read the article on
http://www.msexchange.org/pages/article.asp?id=54 and Microsoft's
knowledge
base articles (310380, 314734, and 304897) and verified through each of
these that my exchange server is not set up as an open relay.
However, ORDB.org ran a test on it and list it as such. When I found out
about this, I attempted to send an open relay message from outside my
network and was also able to do it. Any advise on how to stop open relay
beyond what was published in these articles? We put in a new firewall
two
days ago (also the same day the site was submitted to ORDB) but I am not
sure how a firewall would open relaying when exchange has it turned off.
Any advise would be appreciated. Thanks in advance.
Chris Allen
Systems Administrator
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