1.5 Applicability Statement

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The algorithm described in this document is used by a client to determine the format in which to retrieve a message from the server, when the client accepts multiple message body formats.

The best body algorithm applies to Message objects of all types except when the following conditions are true:

  • The value of the PidTagMessageClass property ([MS-OXCMSG] section 2.2.1.3) is exactly "IPM.Note.SMIME" (section 2.1.3.3). If the value of the PidTagMessageClass property is "IPM.Note.SMIME.MultipartSigned", then the algorithm described in section 2.1.3.1 is applicable.

  • The value of the PidTagMessageClass property is "IPM.Note" and the value of the PidNameContentClass property ([MS-OXCMSG] section 2.2.1.48) is "rpmsg.Message", as described in section 2.1.3.4.