Content is analyzed using the Intelligent Message Filter (IMF), Exchange Server's implementation of Microsoft SmartScreen content filtering technology. SmartScreen is based on Microsoft Research's patented machine-learning technology.

Anti-phishing capabilities are also built-in to the IMF to help detect fraudulent links or spoofed domains and protect users from these types of online scams.

When used with Outlook, a phishing warning or block appears in the user interface. Customers are protected from emerging spam attacks through the automatic filter updates for Exchange Server, which are published on a frequent basis.

	Phishing vs. Pharming: Phishing attempts to scam people one at a time with a fraudulent e-mail, while pharming allows the scammers to target large groups of people at once through domain spoofing.

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