How to query, flush and manage SRL (Sender Reputation Levels) in Exchange 2007/2010?
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Saturday, November 12, 2011 12:24 PMHello.
Contrary to SCL (Spam Confidence Level), which is a value calculated for each non-authenticated incoming MESSAGE and with which Exchange stamps the headers of incoming email messages, the SRL (Sender Reputation Level) is a value calculated by Exchange for each incoming SENDER.
These are excerpts from Exchange 2007 documentation:
"The SRL is a number from 0 through 9 that predicts the probability that a specific sender is a spammer or otherwise malicious user.
Sender Reputation [antispam agent] retrieves the sender's current SRL rating from the sender profile that's persisted about that sender in the Edge Transport server database.
When a sender is added to the IP Block list, Sender Reputation deletes the profile for the sender.
After a sender has sent 20 messages, Exchange maintains a Sender Reputation Level (SRL) analogous to the SCL for content filtering."
I would like to know how could an Exchange Administrator see/query what specific SRL (Sender Reputation Level) has the Exchange "Sender Reputation AntiSpam Agent" assigned to a particular sender at a given point in time.
Also, I would like to know whether that "SRL database" kept in the Exchange 2007 "edge server" survives a reboot of the server, and/or whether it survives a restart of the Exchange Transport service in the edge server.
Further, how could an Exchange Administrator flush/delete the SRL database kept in the edge server, to start anew the data harvesting process which the Sender Reputation Agent does to calculate the SRL for each sender?
I could not find information regarding those points anywhere.
Does anyone know?
Thanks.
All Replies
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Tuesday, November 15, 2011 9:45 AMHi Mulita,
Some information for you:
http://technet.microsoft.com/en-us/library/aa995744.aspx
http://technet.microsoft.com/en-us/library/aa995744(EXCHG.80).aspx
Regards!
Gavin -
Friday, November 18, 2011 6:41 PM
Hi Mulita,
Some information for you:
http://technet.microsoft.com/en-us/library/aa995744.aspx
http://technet.microsoft.com/en-us/library/aa995744(EXCHG.80).aspx
Regards!
Gavin
Hello Gavin.Thanks for your reply, but those links you provided delve into the intricacies of SCL, of which I have a good grasp already.
My question above is about the intricacies of SRL, specially about the "database" in the edge server where the SRL calculated for each Sender is kept, and about how can that "database" be managed, queried and flushed (if at all).
Regards,
-Mulita.
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Monday, November 21, 2011 8:48 AMHi Mulita,
Sorry for the misunderstand your issue.
After doing more research, per my know, we could not operate the sender reputation database directly on the edge server.
You could refer to below to change the edge transport database configuration.
Regards!
Gavin
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Tuesday, November 22, 2011 7:17 PM
Hi Mulita,
Sorry for the misunderstand your issue.
After doing more research, per my know, we could not operate the sender reputation database directly on the edge server.
You could refer to below to change the edge transport database configuration.
Regards!
Gavin
Hello, Gavin.Thanks for your reply.
From you message, I guess you wanted to also post some links, but those links it seems were not finally pasted into your post.
Is that so?
Regards,
-Mulita.
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Wednesday, November 23, 2011 7:50 AM
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