2.2.3.12 attSentFor Attribute Handling by the TNEF Writer

The TNEF Writer SHOULD encode the PidTagSentRepresenting_XXX properties, as specified in section 2.1.3.1.1, in the attSentFor attribute, as specified in section 2.1.3.3.17.

The TNEF Writer can use the discrete PidTagSentRepresentingName ([MS-OXOMSG] section 2.2.1.57), PidTagSentRepresentingAddressType ([MS-OXOMSG] section 2.2.1.54), and PidTagSentRepresentingEmailAddress ([MS-OXOMSG] section 2.2.1.55) properties if present, or access their values by using the PidTagSentRepresentingEntryId property ([MS-OXOMSG] section 2.2.1.56).