Monday, September 20, 2010

Enable MAPI Encryption Group Policy

In Exchange 2010 MAPI Encryption is enforced by default. Outlook 2003 does not support MAPI Encryption by default. This means Outlook 2003 cannot talk to Exchange 2010 unless its turned on.

The following KB article explains all regardless if your enabling MAPI encryption on Outlook 2003 via Group Policy or Disabling MAPI encryption on Exchange 2010.

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