PRB: PR_SECURITY Property Is Ignored by Exchange Server (177853)


The information in this article applies to:

  • Microsoft Extended Messaging Application Programming Interface (MAPI)
  • Microsoft Exchange Server 5.5
  • Microsoft Exchange 2000 Server
This article was previously published under Q177853

SYMPTOMS

When the PR_SECURITY property is set (either directly through Extended MAPI or indirectly with CDO 1.21's Encrypted or Signed properties), the property has no apparent effect.

CAUSE

The Exchange MAPI providers ignore the PR_SECURITY property. Per MAPI specifications, it is up to the underlying MAPI providers whether or not to honor the PR_SECURITY property, and it is not required.

STATUS

This behavior is by design.

MORE INFORMATION

The Microsoft Developer Network Library (MSDN) topic on PR_SECURITY states the following:

The underlying messaging system chooses whether to use the flag Contained in the PR_SECURITY property.

Modification Type:MinorLast Reviewed:8/18/2005
Keywords:kbAPI kbMsg kbprb KB177853
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