Intelligent Message Filter updates on SBS 2003 R2

Hi Experts,

Can anyone tell me how to tell if the IMF on SBS 2003 R2 Exchange 2003 SP2 is auto-updating itself.  When originally installed it really seemed to do its job but now we are receiving a lot of spam email again and I have a feeling that IMF may not be up to date.  Do they have to be manually downloaded and installed or should this happen automatically by default?  If not can you tell me how to set it auto-update or where I can download the patches from?

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Note for SBS and other POP Users:
The POP3 connector on SBS2003 uses CDO through the pickup folder for delivery and therefore it misses the "End of Data" event sink used by IMF. Therefore messages delivered through the POP3 connector wont be scanned by IMF.

You can refer,
JonYenAuthor Commented:
I don't think that this applies to my case as we use SMTP

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