Mapping of TNEF Attributes to MAPI Properties

Applies to: Outlook 2013 | Outlook 2016

The following table lists all the attributes defined in the TNEF implementation and their mappings to MAPI properties. In some cases, multiple MAPI properties are encoded as a single attribute. Some attributes have extended descriptions later in this section.

TNEF attribute MAPI property or properties
attAidOwner
PR_OWNER_APPT_ID (PidTagOwnerAppointmentId)
attAttachCreateDate
PR_CREATION_TIME (PidTagCreationTime)
attAttachData
PR_ATTACH_DATA_BIN (PidTagAttachDataBinary) or PR_ATTACH_DATA_OBJ (PidTagAttachDataObject)
attAttachment
For information about this mapping, see TNEF Attributes.
attAttachMetaFile
PR_ATTACH_RENDERING (PidTagAttachRendering)
attAttachModifyDate
PR_LAST_MODIFICATION_TIME (PidTagLastModificationTime)
attAttachRenddata
PR_ATTACH_METHOD (PidTagAttachMethod), PR_RENDERING_POSITION (PidTagRenderingPosition)
attAttachTitle
PR_ATTACH_FILENAME (PidTagAttachFilename)
attAttachTransportFilename
PR_ATTACH_TRANSPORT_NAME (PidTagAttachTransportName)
attBody
PR_BODY (PidTagBody)
attConversationID
PR_CONVERSATION_KEY (PidTagConversationKey) This property has been deprecated in Microsoft Exchange Server: Its use persists in Outlook only, for locating IPM.MessageManager messages.
attDateEnd
PR_END_DATE (PidTagEndDate) See attDate Attributes for details.
attDateModified
PR_LAST_MODIFICATION_TIME See attDate Attributes for details.
attDateRecd
PR_MESSAGE_DELIVERY_TIME (PidTagMessageDeliveryTime) See attDate Attributes for details.
attDateSent
PR_CLIENT_SUBMIT_TIME (PidTagClientSubmitTime) See attDate Attributes for details.
attDateStart
PR_START_DATE (PidTagStartDate) See attDate Attributes for details.
attFrom
PR_SENDER_ENTRYID (PidTagSenderEntryId) and PR_SENDER_NAME (PidTagSenderName)
attMAPIProps
For information about this attribute, see attMAPIProps.
attMessageClass
PR_MESSAGE_CLASS (PidTagMessageClass)
attMessageID
PR_SEARCH_KEY (PidTagSearchKey) See TNEF Correlation in X.400 Gateways and Transports.
attMessageStatus
PR_MESSAGE_FLAGS (PidTagMessageFlags)
attOriginalMessageClass
**PR_ORIG_MESSAGE_CLASS ** (PidTagOriginalMessageClass)
attOwner
See attOwner.
attParentID
PR_PARENT_KEY (PidTagParentKey) This property has been deprecated. See API Elements Deprecated in This Edition for more information.
attPriority
PR_PRIORITY (PidTagPriority)
attRecipTable
PR_MESSAGE_RECIPIENTS (PidTagMessageRecipients)
attRequestRes
PR_RESPONSE_REQUESTED (PidTagResponseRequested)
attSentFor
PR_SENT_REPRESENTING_ENTRYID (PidTagSentRepresentingEntryId)
attSubject
PR_SUBJECT (PidTagSubject)