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## Version Comparison

The following table lists versions of ScanMail and the features for each:

#### ScanMail Version Comparison

Support | ScanMail 10.x | ScanMail 11.x | ScanMail 12.x
--- | --- | --- | ---
Operating system version | Microsoft™ Windows™ Server 2003 with Service Pack 2, or R2 with Service Pack 2 (32-bit or 64-bit) Microsoft™ Windows Server™ 2008 with Service Pack 1 or above (64-bit) Microsoft™ Windows Server™ 2008 R2 (64-bit) | Microsoft™ Windows Server™ 2008 R2 Standard with Service Pack 1 or above (64-bit) Microsoft™ Windows Server™ 2008 R2 Enterprise with Service Pack 1 or above (64-bit) Microsoft™ Windows Server™ 2008 R2 Datacenter RTM or above (64-bit) Microsoft™ Windows Server™ 2012 Standard or Datacenter (64-bit) Microsoft™ Windows Server™ 2012 R2 Standard or Datacenter (64-bit) | Microsoft™ Windows Server™ 2008 R2 Standard with Service Pack 1 or above (64-bit) Microsoft™ Windows Server™ 2008 R2 Enterprise with Service Pack 1 or above (64-bit) Microsoft™ Windows Server™ 2008 R2 Datacenter RTM or above (64-bit) Microsoft™ Windows Server™ 2012 Standard or Datacenter (64-bit) Microsoft™ Windows Server™ 2012 R2 Standard or Datacenter (64-bit)
Minimum Exchange Version | Microsoft™ Exchange Server 2003 with Service Pack 2 Microsoft™ Exchange Server 2007 with Service Pack 1 Microsoft™ Exchange Server 2010 | Microsoft™ Exchange Server 2007 with Service Pack 1 Microsoft™ Exchange Server 2010 Microsoft™ Exchange Server 2013 | Microsoft™ Exchange Server 2010 with Service Pack 3 Microsoft™ Exchange Server 2013 with Service Pack 1 Microsoft™ Exchange Server 2016
Scan mechanism | VSAPI 2.5 VSAPI 2.6 | VSAPI 2.5 VSAPI 2.6 | VSAPI 2.5 VSAPI 2.6
Exchange Information Store scanning | Yes | Yes | Yes
SMTP (Transport) scanning | Yes | Yes | Yes
Quarantine Manager | Yes | Yes | Yes
Active Message Filter | Integrated as delete function for inbound and outbound messages | Integrated as delete function for inbound and outbound messages | Integrated as delete function for inbound and outbound messages
Notification | Collaborative Data Object Collaborative Data Object EX Exchange Web Service | Collaborative Data Object Collaborative Data Object EX Exchange Web Service | Collaborative Data Object Collaborative Data Object EX Exchange Web Service