Do not allow e-mail postmark functionality

By default, e-mail messages in Outlook can be "postmarked." E-mail postmarking is a feature that helps junk e-mail filtering software to distinguish regular e-mail from junk e-mail. Enable this setting to prevent e-mail postmark creation and processing in Outlook.

Supported on: At least Windows Vista
Registry HiveHKEY_CURRENT_USER
Registry Pathsoftware\policies\microsoft\office\14.0\outlook\options\mail
Value Namedisablepostmarkingonsend
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

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