Spam filter with exchange 2010

Which anti spam you are using with Exchange 2010 ? and how to configure it on the server.

@HC we are expecting an answer on this question since you do support exchange. Can you please recommend which spam control application works better with mail domains and how to configure it ?

Here are the 4 most popular AntiSpam Software for MS Exchange.

http://www.spamtitan.com/
http://www.gfi.com/
http://www.microsoft.com/...nge/en/us/default.aspx
http://us.trendmicro.com/us/home/

I personally like hosted spam/anti-virus solutions.  Just some of the pro's to hosted solutions:

• Hosted solutions see billions of emails a day and update signatures in real-time
  
• No admin/maitenance overhead
  
• No bad emails make it into your network
  
• Bandwidth utilization goes down since 90+% of emails are spam and never make it into your network
  
• Most services offer queuing, so if your internet connection or exchange server goes down, you do not lose any email as it is being queued in the cloud
  
• Several companies out there for this.  The big three in my opinion and all are good: 

1. Microsoft Forefront Online
   
2. Postini/Google
   
3. MXLogic
   
4. MailScanner (http://www.mailscanner.info/ ) This one is FREE Edition.

try using ForeFront 2010  this is recommanded by microsoft as well