Trouble with Anti-spam Content Filtering

Posted on 2008-11-03
Medium Priority
Last Modified: 2011-09-20
I have an E2K7 server that has been online for a few weeks now, running very smooth.  I have recently been getting reports, however, from some senders whose messages are not being received.  Here is the message that one sender has received, which is my main concern:
"Remote host said: 550 5.7.1 Message rejected as spam by Content Filtering."

This particular sender is able to successfully send messages to one of my users, but gets the above message when sending to two of my other users.  The tools I am using are the Anti-spam agents that come with Exchange Server 2007, and the only one I have enabled is the "Content Filter".  The settings for my filter are as follows:

Reject messages with SCL rating greater than or equal to 6
Quarantine messages with SCL rating greater than or equal to 4.

I closely monitor the Quarantine folder, but cannot remember seeing quarantined messages from this particular sender.  When I use the Mail Flow Troubleshooter, with the problem sender and recipient addresses, I do see an error that says the Client is not authenticated.  When I do this test, the test messages do appear in my spam Quarantine folder.

Does anyone know why this sender would be able to get through to one of my users, but not others?  Is there a way to manually enter email addresses that are authorized to send to us, given the filter setup that I am using?

Question by:Rob Grinage
1 Comment
LVL 15

Accepted Solution

. earned 1500 total points
ID: 22876579
Hi, If you run this cmdlet:

Get-AgentLog -EndDate 04/11/2008 -StartDate 01/11/2008 > c:\filter.txt

it will create a file in the root of c: called filter.txt , if you search the file for the senders email address you will see additional infomation as to why it was blocked... e.g.

SmtpResponse    : 550 5.7.1 Recipient not authorized, your IP has been found on
                   a block list
Reason          : BlockListProvider
ReasonData      : spamcop

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Stellar Exchange Toolkit: this 5 in 1 toolkit comes loaded with mega-software tool. Here’s an introduction to tools’ usage and advantages:
If you have come across a situation where you need to find some EDB mailbox recovery techniques, then here you will find the same. In this article, we will take you through three techniques using which you will be able to perform EDB recovery. You …
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Suggested Courses

830 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question