The following topics explain how to manage the Exchange 2007 anti-spam features:

• Configuring Connection Filtering
  
• Configuring Content Filtering
  
• Configuring Recipient Filtering
  
• Configuring Sender Filtering
  
• Configuring Sender ID
  
• Configuring Sender Reputation
  
• How to Configure Safelist Aggregation
  
• Configuring and Managing Spam Quarantine
  
• Microsoft Forefront Security for Exchange Server User Guide
  
• Protecting Your Microsoft Exchange Organization with Microsoft Forefront Security for Exchange Server
  
• How to Configure Proxy Settings for WinHTTP
  

The following topics explain how to manage the Exchange 2007 antivirus features:

• Configuring Edge Transport Rules to Manage Viruses
  
• Planning Antivirus Deployment
  
• Configuring Edge Transport Rules to Manage Viruses
  
• How to Configure Attachment Filtering
  
• File-Level Antivirus Scanning on Exchange 2007
  
• Microsoft Forefront Security for Exchange Server User Guide
  

Spam filtering is enhanced by or is also available as a service from Microsoft Exchange Hosted Services. Exchange Hosted Services is a set of four distinct hosted services:

• Hosted Filtering, which helps organizations protect themselves from e-mail-borne malware
  
• Hosted Archive, which helps them satisfy retention requirements for compliance
  
• Hosted Encryption, which helps them encrypt data to preserve confidentiality
  
• Hosted Continuity, which helps them preserve access to e-mail during and after emergency situations
  

These services integrate with any on-premise Exchange servers that are managed in-house or Hosted Exchange e-mail services that are offered through service providers. For more information about Exchange Hosted Services, see Microsoft Exchange Hosted Services.