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PidTagDefaultPostMessageClass Canonical Property
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PidTagDefaultPostMessageClass Canonical Property

This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This page may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.

Contains the name of a custom form Message class.

Associated properties:




Data type:



MAPI container

If this property is set on a folder, the value must contain either exactly the base message class (for example, "IPM.Contact" for a contacts folder or "IPM.Appointment" for a calendar folder), or begin with the base message class (for example, "IPM.Contact.MyContact").

Protocol Specifications


Provides references to related Exchange Server protocol specifications.


Specifies the properties and operations for appointment, meeting request, and response messages.

Header Files


Provides data type definitions.


Contains definitions of properties listed as alternate names.

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