MSG file format: all PidName properties

The 136 named properties of the form PidName… in section 2 of [MS-OXPROPS] (the learn.microsoft.com PDF, read 2026-11-13). Each is identified by a property set GUID and a Unicode name string; its property ID in a file comes from the named property mapping. The set GUIDs are on the PidLid page. Set abbreviations: PUBSTR = PS_PUBLIC_STRINGS (the ordinary "public strings" of the object, including the old document summary properties and the WebDAV and urn:schemas:… names), INETHDR = PS_INTERNET_HEADERS (the name is an Internet message header field name), Address = PSETID_Address, Attachment = PSETID_Attachment, UM = PSETID_UnifiedMessaging, XEE = PSETID_XmlExtractedEntities. Type drops the Ptyp prefix (see property types); the specification's Area column is given as is.

The properties, alphabetically

Name	Set	Name string	Type	Area
PidNameAcceptLanguage	INETHDR	Accept-Language	String	Email
PidNameApplicationName	PUBSTR	AppName	String	Common
PidNameAttachmentMacContentType	Attachment	AttachmentMacContentType	String	Message Attachment
PidNameAttachmentMacInfo	Attachment	AttachmentMacInfo	Binary	Message Attachment
PidNameAttachmentOriginalPermissionType	Attachment	AttachmentOriginalPermissionType	Integer32	Message Attachment
PidNameAttachmentPermissionType	Attachment	AttachmentPermissionType	Integer32	Message Attachment
PidNameAttachmentProviderType	Attachment	AttachmentProviderType	String	Message Attachment
PidNameAudioNotes	UM	UMAudioNotes	String	Unified Messaging
PidNameAuthor	PUBSTR	Author	String	Common
PidNameAutomaticSpeechRecognitionData	UM	AsrData	Binary	Unified Messaging
PidNameBirthdayContactAttributionDisplayName	Address	BirthdayContactAttributionDisplayName	String	Contact
PidNameBirthdayContactEntryId	Address	BirthdayContactEntryId	Binary	Contact
PidNameBirthdayContactPersonGuid	Address	BirthdayContactPersonGuid	Binary	Contact
PidNameByteCount	PUBSTR	ByteCount	Integer32	Common
PidNameCalendarAttendeeRole	PUBSTR	urn:schemas:calendar:attendeerole	Integer32	Common
PidNameCalendarBusystatus	PUBSTR	urn:schemas:calendar:busystatus	String	Common
PidNameCalendarContact	PUBSTR	urn:schemas:calendar:contact	String	Common
PidNameCalendarContactUrl	PUBSTR	urn:schemas:calendar:contacturl	String	Common
PidNameCalendarCreated	PUBSTR	urn:schemas:calendar:created	Time	Common
PidNameCalendarDescriptionUrl	PUBSTR	urn:schemas:calendar:descriptionurl	String	Common
PidNameCalendarDuration	PUBSTR	urn:schemas:calendar:duration	Integer32	Common
PidNameCalendarExceptionDate	PUBSTR	urn:schemas:calendar:exdate	MultipleTime	Common
PidNameCalendarExceptionRule	PUBSTR	urn:schemas:calendar:exrule	MultipleString	Common
PidNameCalendarGeoLatitude	PUBSTR	urn:schemas:calendar:geolatitude	Floating64	Common
PidNameCalendarGeoLongitude	PUBSTR	urn:schemas:calendar:geolongitude	Floating64	Common
PidNameCalendarInstanceType	PUBSTR	urn:schemas:calendar:instancetype	Integer32	Common
PidNameCalendarIsOrganizer	PUBSTR	urn:schemas:calendar:isorganizer	Boolean	Common
PidNameCalendarLastModified	PUBSTR	urn:schemas:calendar:lastmodified	Time	Common
PidNameCalendarLocationUrl	PUBSTR	urn:schemas:calendar:locationurl	String	Common
PidNameCalendarMeetingStatus	PUBSTR	urn:schemas:calendar:meetingstatus	String	Common
PidNameCalendarMethod	PUBSTR	urn:schemas:calendar:method	String	Common
PidNameCalendarProductId	PUBSTR	urn:schemas:calendar:prodid	String	Common
PidNameCalendarRecurrenceIdRange	PUBSTR	urn:schemas:calendar:recurrenceidrange	String	Common
PidNameCalendarReminderOffset	PUBSTR	urn:schemas:calendar:reminderoffset	Integer32	Common
PidNameCalendarResources	PUBSTR	urn:schemas:calendar:resources	String	Common
PidNameCalendarRsvp	PUBSTR	urn:schemas:calendar:rsvp	Boolean	Common
PidNameCalendarSequence	PUBSTR	urn:schemas:calendar:sequence	Integer32	Common
PidNameCalendarTimeZone	PUBSTR	urn:schemas:calendar:timezone	String	Common
PidNameCalendarTimeZoneId	PUBSTR	urn:schemas:calendar:timezoneid	Integer32	Common
PidNameCalendarTransparent	PUBSTR	urn:schemas:calendar:transparent	String	Common
PidNameCalendarUid	PUBSTR	urn:schemas:calendar:uid	String	Common
PidNameCalendarVersion	PUBSTR	urn:schemas:calendar:version	String	Common
PidNameCategory	PUBSTR	Category	String	Common
PidNameCharacterCount	PUBSTR	CharCount	Integer32	Common
PidNameComments	PUBSTR	Comments	String	Common
PidNameCompany	PUBSTR	Company	String	Common
PidNameContentBase	INETHDR	Content-Base	String	Email
PidNameContentClass	INETHDR	Content-Class	String	Email
PidNameContentType	INETHDR	Content-Type	String	Email
PidNameCreateDateTimeReadOnly	PUBSTR	CreateDtmRo	Time	Common
PidNameCrossReference	INETHDR	Xref	String	Email
PidNameDavId	PUBSTR	DAV:id	String	Common
PidNameDavIsCollection	PUBSTR	DAV:iscollection	Boolean	Common
PidNameDavIsStructuredDocument	PUBSTR	DAV:isstructureddocument	Boolean	Common
PidNameDavParentName	PUBSTR	DAV:parentname	String	Common
PidNameDavUid	PUBSTR	DAV:uid	String	Common
PidNameDocumentParts	PUBSTR	DocParts	MultipleString	Common
PidNameEditTime	PUBSTR	EditTime	String	Common
PidNameExchangeIntendedBusyStatus	PUBSTR	http://schemas.microsoft.com/exchange/intendedbusystatus	String	Common
PidNameExchangeJunkEmailMoveStamp	PUBSTR	http://schemas.microsoft.com/exchange/junkemailmovestamp	Integer32	Secure Messaging
PidNameExchangeModifyExceptionStructure	PUBSTR	http://schemas.microsoft.com/exchange/modifyexceptionstruct	Binary	Common
PidNameExchangeNoModifyExceptions	PUBSTR	http://schemas.microsoft.com/exchange/nomodifyexceptions	Boolean	Common
PidNameExchangePatternEnd	PUBSTR	http://schemas.microsoft.com/exchange/patternend	Time	Common
PidNameExchangePatternStart	PUBSTR	http://schemas.microsoft.com/exchange/patternstart	Time	Common
PidNameExchangeReminderInterval	PUBSTR	http://schemas.microsoft.com/exchange/reminderinterval	Integer32	Common
PidNameExchDatabaseSchema	PUBSTR	urn:schemas-microsoft-com:exch-data:baseschema	MultipleString	Common
PidNameExchDataExpectedContentClass	PUBSTR	urn:schemas-microsoft-com:exch-data:expected-content-class	MultipleString	Common
PidNameExchDataSchemaCollectionReference	PUBSTR	urn:schemas-microsoft-com:exch-data:schema-collection-ref	String	Common
PidNameExtractedAddresses	XEE	XmlExtractedAddresses	String	Extracted Entities
PidNameExtractedContacts	XEE	XmlExtractedContacts	String	Extracted Entities
PidNameExtractedEmails	XEE	XmlExtractedEmails	String	Extracted Entities
PidNameExtractedMeetings	XEE	XmlExtractedMeetings	String	Extracted Entities
PidNameExtractedPhones	XEE	XmlExtractedPhones	String	Extracted Entities
PidNameExtractedTasks	XEE	XmlExtractedTasks	String	Extracted Entities
PidNameExtractedUrls	XEE	XmlExtractedUrls	String	Extracted Entities
PidNameFrom	INETHDR	From	String	Email
PidNameHeadingPairs	PUBSTR	HeadingPairs	Binary	Common
PidNameHiddenCount	PUBSTR	HiddenCount	Integer32	Common
PidNameHttpmailCalendar	PUBSTR	urn:schemas:httpmail:calendar	String	Common
PidNameHttpmailHtmlDescription	PUBSTR	urn:schemas:httpmail:htmldescription	String	Common
PidNameHttpmailSendMessage	PUBSTR	urn:schemas:httpmail:sendmsg	String	Common
PidNameICalendarRecurrenceDate	PUBSTR	urn:schemas:calendar:rdate	MultipleTime	Common
PidNameICalendarRecurrenceRule	PUBSTR	urn:schemas:calendar:rrule	MultipleString	Common
PidNameInternetSubject	INETHDR	Subject	String	Email
PidNameIsBirthdayContactWritable	Address	IsBirthdayContactWritable	Boolean	Contact
PidNameKeywords	PUBSTR	Keywords	MultipleString	General Message
PidNameLastAuthor	PUBSTR	LastAuthor	String	Common
PidNameLastPrinted	PUBSTR	LastPrinted	Time	Common
PidNameLastSaveDateTime	PUBSTR	LastSaveDtm	Time	Common
PidNameLineCount	PUBSTR	LineCount	Integer32	Common
PidNameLinksDirty	PUBSTR	LinksDirty	Boolean	Common
PidNameLocationUrl	PUBSTR	urn:schemas:calendar:locationurl	String	Calendar
PidNameManager	PUBSTR	Manager	String	Common
PidNameMeetingDoNotForward	PUBSTR	DoNotForward	Boolean	Meetings
PidNameMSIPLabels	INETHDR	msip_labels	String	Email
PidNameMultimediaClipCount	PUBSTR	MMClipCount	Integer32	Common
PidNameNoteCount	PUBSTR	NoteCount	Integer32	Common
PidNameOMSAccountGuid	PUBSTR	OMSAccountGuid	String	SMS
PidNameOMSMobileModel	PUBSTR	OMSMobileModel	String	SMS
PidNameOMSScheduleTime	PUBSTR	OMSScheduleTime	Time	SMS
PidNameOMSServiceType	PUBSTR	OMSServiceType	Integer32	SMS
PidNameOMSSourceType	PUBSTR	OMSSourceType	Integer32	SMS
PidNamePageCount	PUBSTR	PageCount	Integer32	Common
PidNameParagraphCount	PUBSTR	ParCount	Integer32	Common
PidNamePhishingStamp	PUBSTR	http://schemas.microsoft.com/outlook/phishingstamp	Integer32	Secure Messaging
PidNamePresentationFormat	PUBSTR	PresFormat	String	Common
PidNameQuarantineOriginalSender	PUBSTR	quarantine-original-sender	String	Common
PidNameRevisionNumber	PUBSTR	RevNumber	String	Common
PidNameRightsManagementLicense	PUBSTR	DRMLicense	MultipleBinary	Secure Messaging
PidNameScale	PUBSTR	Scale	Boolean	Common
PidNameSecurity	PUBSTR	Security	Integer32	Common
PidNameSlideCount	PUBSTR	SlideCount	Integer32	Common
PidNameSubject	PUBSTR	Subject	String	Common
PidNameTemplate	PUBSTR	Template	String	Common
PidNameThumbnail	PUBSTR	Thumbnail	Binary	Common
PidNameTitle	PUBSTR	Title	String	Common
PidNameWordCount	PUBSTR	WordCount	Integer32	Common
PidNameXCallId	INETHDR	X-CallID	String	Unified Messaging
PidNameXFaxNumberOfPages	INETHDR	X-FaxNumberOfPages	Integer16	Unified Messaging
PidNameXRequireProtectedPlayOnPhone	INETHDR	X-RequireProtectedPlayOnPhone	Boolean	Unified Messaging
PidNameXSenderTelephoneNumber	INETHDR	X-CallingTelephoneNumber	String	Unified Messaging
PidNameXSharingBrowseUrl	INETHDR	X-Sharing-Browse-Url	String	Sharing
PidNameXSharingCapabilities	INETHDR	X-Sharing-Capabilities	String	Sharing
PidNameXSharingConfigUrl	INETHDR	X-Sharing-Config-Url	String	Sharing
PidNameXSharingExendedCaps	INETHDR	X-Sharing-Exended-Caps	String	Sharing
PidNameXSharingFlavor	INETHDR	X-Sharing-Flavor	String	Sharing
PidNameXSharingInstanceGuid	INETHDR	X-Sharing-Instance-Guid	String	Sharing
PidNameXSharingLocalType	INETHDR	X-Sharing-Local-Type	String	Sharing
PidNameXSharingProviderGuid	INETHDR	X-Sharing-Provider-Guid	String	Sharing
PidNameXSharingProviderName	INETHDR	X-Sharing-Provider-Name	String	Sharing
PidNameXSharingProviderUrl	INETHDR	X-Sharing-Provider-Url	String	Sharing
PidNameXSharingRemoteName	INETHDR	X-Sharing-Remote-Name	String	Sharing
PidNameXSharingRemotePath	INETHDR	X-Sharing-Remote-Path	String	Sharing
PidNameXSharingRemoteStoreUid	INETHDR	X-Sharing-Remote-Store-Uid	String	Sharing
PidNameXSharingRemoteType	INETHDR	X-Sharing-Remote-Type	String	Sharing
PidNameXSharingRemoteUid	INETHDR	X-Sharing-Remote-Uid	String	Sharing
PidNameXVoiceMessageAttachmentOrder	INETHDR	X-AttachmentOrder	String	Unified Messaging
PidNameXVoiceMessageDuration	INETHDR	X-VoiceMessageDuration	Integer16	Unified Messaging
PidNameXVoiceMessageSenderName	INETHDR	X-VoiceMessageSenderName	String	Unified Messaging

.MSG File Format – All PidName properties

The properties, alphabetically