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Out mail server was recently blacklisted. After lots of investigating we have narrowed the issue down to us being blacklisted as we are generating backscatter.<br />
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We run Exchange 2007 (on a SBS 2008 server). We run Symantec Mail Security 7 as our mail security product.<br />
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The only way I could prevent us from being continually re-blacklisted was to disable the Symantec Premium Anti-spam feature.<br />
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I now need to look at re-enabling it in such a way to reduce incoming spam and also avoid the backscatter issue.<br />
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I am a little unclear exactly how the anti-spam function works and would ask if someone can answer a few newbie questions for me.<br />
<br />
Question one is if I set Premium anti-spam to reject &nbsp;Spam Messages/Suspected spam messages and SCL greater than 6/suspected spam, will the sender receive any warnings from our server that there message has been rejected?
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Out mail server was recently blacklisted. After lots of investigating we have narrowed the issue down to us being blacklisted as we are generating backscatter.

We run Exchange 2007 (on a SBS 2008 server). We run Symantec Mail Security 7 as our mail security product.

The only way I could prevent us from being continually re-blacklisted was to disable the Symantec Premium Anti-spam feature.

I now need to look at re-enabling it in such a way to reduce incoming spam and also avoid the backscatter issue.

I am a little unclear exactly how the anti-spam function works and would ask if someone can answer a few newbie questions for me.

Question one is if I set Premium anti-spam to reject  Spam Messages/Suspected spam messages and SCL greater than 6/suspected spam, will the sender receive any warnings from our server that there message has been rejected?

Configure Symantec Mail Security Spam Filter to avoid generating backscatter

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.