Outlook MAPI Message Class Metadata in Outlook 2016 - powershell

Question

I've been looking all over and I can't seem to find anywhere that MS has this information documented. (This includes the MS documentation on MAPI message classes. This Super User answer elucidates what seems to be all of the standard Message Classes that are possible, but I haven't been able to find a list of the possible metadata that are associated with the Message Classes.
Does anyone know where I can find the metadata for each of the Message Classes as well as a possible brief (or detailed!) description of what the column means? Some of them are pretty obvious ("ReceivedDate", Start, etc.) but others are less obvious.
I've munged around with PowerShell and managed to find the following:
Schedule Meeting Request:
"Application",
"Class",
"Session",
"Parent",
"Actions",
"Attachments",
"BillingInformation",
"Body",
"Categories",
"Companies ",
"ConversationIndex",
"ConversationTopic",
"CreationTime",
"EntryID",
"FormDescription",
"GetInspector",
"Importance",
"LastModificationTime",
"MAPIOBJECT",
"MessageClass",
"Mileage",
"NoAging",
"OutlookInternalVersion",
"OutlookVersion",
"Saved",
"Sensitivity",
"Size",
"Subject",
"UnRead",
"UserProperties",
"AutoForwarded",
"DeferredDeliveryTime",
"DeleteAfterSubmit",
"ExpiryTime",
"FlagDueBy",
"FlagRequest ",
"FlagStatus",
"OriginatorDeliveryReportRequested",
"ReceivedTime",
"Recipients",
"ReminderSet",
"ReminderTime",
"ReplyRecipients",
"SaveSentMessageFolder",
"SenderName",
"Sent",
"SentOn",
"Submitted",
"Links",
"DownloadState",
"ItemProperties",
"MarkForDownload",
"IsConflict",
"MeetingWorkspaceURL",
"FlagIcon",
"AutoResolvedWinner",
"Conflicts",
"SenderEmailAddress",
"SenderEmailType",
"PropertyAccessor",
"ConversationID",
"SendUsingAccount",
"IsLatestVersion",
"RTFBody",
"RetentionExpirationDate",
"RetentionPolicyName",
"BodyFormat"
RSS:
"Application",
"Class",
"Session",
"Parent",
"Actions",
"Attachments",
"BillingInformation",
"Body",
"Categories",
"Companies",
"ConversationIndex",
"ConversationTopic",
"CreationTime",
"EntryID",
"FormDescription",
"GetInspector",
"Importance",
"LastModificationTime",
"MAPIOBJECT",
"MessageClass",
"Mileage",
"NoAging",
"OutlookInternalVersion",
"OutlookVersion",
"Saved",
"Sensitivity",
"Size",
"Subject",
"UnRead",
"UserProperties",
"ExpiryTime",
"HTMLBody",
"ReceivedTime",
"SenderName",
"SentOn",
"Links",
"ItemProperties",
"BodyFormat",
"DownloadState",
"InternetCodepage",
"MarkForDownload",
"IsConflict",
"AutoResolvedWinner",
"Conflicts",
"SenderEmailAddress",
"SenderEmailType",
"PropertyAccessor",
"TaskSubject",
"TaskDueDate",
"TaskStartDate",
"TaskCompletedDate",
"ToDoTaskOrdinal",
"ReminderOverrideDefault",
"ReminderPlaySound",
"ReminderSet",
"ReminderSoundFile",
"ReminderTime",
"IsMarkedAsTask",
"ConversationID",
"RTFBody"
Notes:
"Application",
"Class",
"Session",
"Parent",
"Body",
"Categories",
"Color",
"CreationTime",
"EntryID",
"GetInspector",
"Height",
"LastModificationTime",
"Left",
"MessageClass",
"Saved",
"Size",
"Subject",
"Top",
"Width",
"Links",
"DownloadState",
"ItemProperties",
"MarkForDownload",
"IsConflict",
"AutoResolvedWinner",
"Conflicts",
"PropertyAccessor"
Contact:
"Application",
"Class",
"Session",
"Parent",
"Actions",
"Attachments",
"BillingInformation",
"Body",
"Categories",
"Companies",
"ConversationIndex",
"ConversationTopic",
"CreationTime",
"EntryID",
"FormDescription",
"GetInspector",
"Importance",
"LastModificationTime",
"MAPIOBJECT",
"MessageClass",
"Mileage",
"NoAging",
"OutlookInternalVersion",
"OutlookVersion",
"Saved",
"Sensitivity",
"Size",
"Subject",
"UnRead",
"UserProperties",
"Account",
"Anniversary",
"AssistantName",
"AssistantTelephoneNumber",
"Birthday",
"Business2TelephoneNumber",
"BusinessAddress",
"BusinessAddressCity",
"BusinessAddressCountry",
"BusinessAddressPostalCode",
"BusinessAddressPostOfficeBox",
"BusinessAddressState",
"BusinessAddressStreet",
"BusinessFaxNumber",
"BusinessHomePage",
"BusinessTelephoneNumber",
"CallbackTelephoneNumber",
"CarTelephoneNumber",
"Children",
"CompanyAndFullName",
"CompanyLastFirstNoSpace",
"CompanyLastFirstSpaceOnly",
"CompanyMainTelephoneNumber",
"CompanyName",
"ComputerNetworkName",
"CustomerID",
"Department",
"Email1Address",
"Email1AddressType",
"Email1DisplayName",
"Email1EntryID",
"Email2Address",
"Email2AddressType",
"Email2DisplayName",
"Email2EntryID",
"Email3Address",
"Email3AddressType",
"Email3DisplayName",
"Email3EntryID",
"FileAs",
"FirstName",
"FTPSite",
"FullName",
"FullNameAndCompany",
"Gender",
"GovernmentIDNumber",
"Hobby",
"Home2TelephoneNumber",
"HomeAddress",
"HomeAddressCity",
"HomeAddressCountry",
"HomeAddressPostalCode",
"HomeAddressPostOfficeBox",
"HomeAddressState",
"HomeAddressStreet",
"HomeFaxNumber",
"HomeTelephoneNumber",
"Initials",
"InternetFreeBusyAddress",
"ISDNNumber",
"JobTitle",
"Journal",
"Language",
"LastFirstAndSuffix",
"LastFirstNoSpace",
"LastFirstNoSpaceCompany",
"LastFirstSpaceOnly",
"LastFirstSpaceOnlyCompany",
"LastName",
"LastNameAndFirstName",
"MailingAddress",
"MailingAddressCity",
"MailingAddressCountry",
"MailingAddressPostalCode",
"MailingAddressPostOfficeBox",
"MailingAddressState",
"MailingAddressStreet",
"ManagerName",
"MiddleName",
"MobileTelephoneNumber",
"NetMeetingAlias",
"NetMeetingServer",
"NickName",
"OfficeLocation",
"OrganizationalIDNumber",
"OtherAddress",
"OtherAddressCity",
"OtherAddressCountry",
"OtherAddressPostalCode",
"OtherAddressPostOfficeBox",
"OtherAddressState",
"OtherAddressStreet",
"OtherFaxNumber",
"OtherTelephoneNumber",
"PagerNumber",
"PersonalHomePage",
"PrimaryTelephoneNumber",
"Profession",
"RadioTelephoneNumber",
"ReferredBy",
"SelectedMailingAddress",
"Spouse",
"Suffix",
"TelexNumber",
"Title",
"TTYTDDTelephoneNumber",
"User1",
"User2",
"User3",
"User4",
"UserCertificate",
"WebPage",
"YomiCompanyName",
"YomiFirstName",
"YomiLastName",
"Links",
"ItemProperties",
"LastFirstNoSpaceAndSuffix",
"DownloadState",
"IMAddress",
"MarkForDownload",
"IsConflict",
"AutoResolvedWinner",
"Conflicts",
"HasPicture",
"PropertyAccessor",
"TaskSubject",
"TaskDueDate",
"TaskStartDate",
"TaskCompletedDate",
"ToDoTaskOrdinal",
"ReminderOverrideDefault",
"ReminderPlaySound",
"ReminderSet",
"ReminderSoundFile",
"ReminderTime",
"IsMarkedAsTask",
"BusinessCardLayoutXml",
"BusinessCardType",
"ConversationID",
"RTFBody"
Conversations:
"Application",
"Class",
"Session",
"Parent",
"Actions",
"Attachments",
"BillingInformation",
"Body",
"Categories",
"Companies",
"ConversationIndex",
"ConversationTopic",
"CreationTime",
"EntryID",
"FormDescription",
"GetInspector",
"Importance",
"LastModificationTime",
"MAPIOBJECT",
"MessageClass",
"Mileage",
"NoAging",
"OutlookInternalVersion",
"OutlookVersion",
"Saved",
"Sensitivity",
"Size",
"Subject",
"UnRead",
"UserProperties",
"AlternateRecipientAllowed",
"AutoForwarded",
"BCC",
"CC",
"DeferredDeliveryTime",
"DeleteAfterSubmit",
"ExpiryTime",
"FlagDueBy",
"FlagRequest",
"FlagStatus",
"HTMLBody",
"OriginatorDeliveryReportRequested",
"ReadReceiptRequested",
"ReceivedByEntryID",
"ReceivedByName",
"ReceivedOnBehalfOfEntryID",
"ReceivedOnBehalfOfName",
"ReceivedTime",
"RecipientReassignmentProhibited",
"Recipients",
"ReminderOverrideDefault",
"ReminderPlaySound",
"ReminderSet",
"ReminderSoundFile",
"ReminderTime",
"RemoteStatus",
"ReplyRecipientNames",
"ReplyRecipients",
"SaveSentMessageFolder",
"SenderName",
"Sent",
"SentOn",
"SentOnBehalfOfName",
"Submitted",
"[To]",
"VotingOptions",
"VotingResponse",
"Links",
"ItemProperties",
"BodyFormat",
"DownloadState",
"InternetCodepage",
"MarkForDownload",
"IsConflict",
"IsIPFax",
"FlagIcon",
"HasCoverSheet",
"AutoResolvedWinner",
"Conflicts",
"SenderEmailAddress",
"SenderEmailType",
"EnableSharedAttachments",
"Permission",
"PermissionService",
"PropertyAccessor",
"SendUsingAccount",
"TaskSubject",
"TaskDueDate",
"TaskStartDate",
"TaskCompletedDate",
"ToDoTaskOrdinal",
"IsMarkedAsTask",
"ConversationID",
"Sender",
"PermissionTemplateGuid",
"RTFBody",
"RetentionPolicyName",
"RetentionExpirationDate"
Tasks:
"Application",
"Class",
"Session",
"Parent",
"Actions",
"Attachments",
"BillingInformation",
"Body",
"Categories",
"Companies",
"ConversationIndex",
"ConversationTopic",
"CreationTime",
"EntryID",
"FormDescription",
"GetInspector",
"Importance",
"LastModificationTime",
"MAPIOBJECT",
"MessageClass",
"Mileage",
"NoAging",
"OutlookInternalVersion",
"OutlookVersion",
"Saved",
"Sensitivity",
"Size",
"Subject",
"UnRead",
"UserProperties",
"ActualWork",
"CardData",
"Complete",
"Contacts",
"ContactNames",
"DateCompleted",
"DelegationState",
"Delegator",
"DueDate",
"IsRecurring",
"Ordinal",
"Owner",
"Ownership",
"PercentComplete",
"Recipients",
"ReminderTime",
"ReminderOverrideDefault",
"ReminderPlaySound",
"ReminderSet",
"ReminderSoundFile",
"ResponseState",
"Role",
"SchedulePlusPriority",
"StartDate",
"Status",
"StatusOnCompletionRecipients",
"StatusUpdateRecipients",
"TeamTask",
"TotalWork",
"Links",
"DownloadState",
"ItemProperties",
"InternetCodepage",
"MarkForDownload",
"IsConflict",
"AutoResolvedWinner",
"Conflicts",
"PropertyAccessor",
"SendUsingAccount",
"ToDoTaskOrdinal",
"ConversationID",
"RTFBody",
Calendar:
"Application",
"Class",
"Session",
"Parent",
"Actions",
"Attachments",
"BillingInformation",
"Body",
"Categories",
"Companies",
"ConversationIndex",
"ConversationTopic",
"CreationTime",
"EntryID",
"FormDescription",
"GetInspector",
"Importance",
"LastModificationTime",
"MAPIOBJECT",
"MessageClass",
"Mileage",
"NoAging",
"OutlookInternalVersion",
"OutlookVersion",
"Saved",
"Sensitivity",
"Size",
"Subject",
"UnRead",
"UserProperties",
"AllDayEvent",
"BusyStatus",
"Duration",
"End",
"IsOnlineMeeting",
"IsRecurring",
"Location",
"MeetingStatus",
"NetMeetingAutoStart",
"NetMeetingOrganizerAlias",
"NetMeetingServer",
"NetMeetingType",
"OptionalAttendees",
"Organizer",
"Recipients",
"RecurrenceState",
"ReminderMinutesBeforeStart",
"ReminderOverrideDefault",
"ReminderPlaySound",
"ReminderSet",
"ReminderSoundFile",
"ReplyTime",
"RequiredAttendees",
"Resources",
"ResponseRequested",
"ResponseStatus",
"Start",
"NetMeetingDocPathName",
"NetShowURL",
"Links",
"ConferenceServerAllowExternal",
"ConferenceServerPassword",
"ItemProperties",
"DownloadState",
"InternetCodepage",
"MarkForDownload",
"IsConflict",
"MeetingWorkspaceURL",
"AutoResolvedWinner",
"Conflicts",
"PropertyAccessor",
"SendUsingAccount",
"GlobalAppointmentID",
"ForceUpdateToAllAttendees",
"StartUTC",
"EndUTC",
"StartInStartTimeZone",
"EndInEndTimeZone",
"StartTimeZone",
"EndTimeZone",
"ConversationID",
"RTFBody",
"BodyFormat"
e-mail (IPM.Note):
"Application",
"Class",
"Session",
"Parent",
"Actions",
"Attachments",
"BillingInformation",
"Body",
"Categories",
"Companies",
"ConversationIndex",
"ConversationTopic",
"CreationTime",
"EntryID",
"FormDescription",
"GetInspector",
"Importance",
"LastModificationTime",
"MAPIOBJECT",
"MessageClass",
"Mileage",
"NoAging",
"OutlookInternalVersion",
"OutlookVersion",
"Saved",
"Sensitivity",
"Size",
"Subject",
"UnRead",
"UserProperties",
"AlternateRecipientAllowed",
"AutoForwarded",
"BCC",
"CC",
"DeferredDeliveryTime",
"DeleteAfterSubmit",
"ExpiryTime",
"FlagDueBy",
"FlagRequest",
"FlagStatus",
"HTMLBody",
"OriginatorDeliveryReportRequested",
"ReadReceiptRequested",
"ReceivedByEntryID",
"ReceivedByName",
"ReceivedOnBehalfOfEntryID",
"ReceivedOnBehalfOfName",
"ReceivedTime",
"RecipientReassignmentProhibited",
"Recipients",
"ReminderOverrideDefault",
"ReminderPlaySound",
"ReminderSet",
"ReminderSoundFile",
"ReminderTime",
"RemoteStatus",
"ReplyRecipientNames",
"ReplyRecipients",
"SaveSentMessageFolder",
"SenderName",
"Sent",
"SentOn",
"SentOnBehalfOfName",
"Submitted",
"[To]",
"VotingOptions",
"VotingResponse",
"Links",
"ItemProperties",
"BodyFormat",
"DownloadState",
"InternetCodepage",
"MarkForDownload",
"IsConflict",
"IsIPFax",
"FlagIcon",
"HasCoverSheet",
"AutoResolvedWinner",
"Conflicts",
"SenderEmailAddress",
"SenderEmailType",
"EnableSharedAttachments",
"Permission",
"PermissionService",
"PropertyAccessor",
"SendUsingAccount",
"TaskSubject",
"TaskDueDate",
"TaskStartDate",
"TaskCompletedDate",
"ToDoTaskOrdinal",
"IsMarkedAsTask",
"ConversationID",
"Sender",
"PermissionTemplateGuid",
"RTFBody",
"RetentionPolicyName",
"RetentionExpirationDate"

Answer 1

The Microsoft Outlook object browser displays the classes, properties, methods, and events available from the Outlook object library.
If you do not see the Developer tab, see Run in Developer Mode in Outlook to activate the Developer tab. On the Developer tab, in the Form group, click View Code to open the Script Editor. In the Script Editor, click Object Browser on the Script menu or press F2.
All of the available Outlook objects are listed in the Classes pane of the object browser in alphabetical order. To view the members of an object, select the object in the Classes pane. The members of this object appear in alphabetical order in the Members of pane. The heading at the top of this pane will reflect the name of the object that you select. For example, if you select the AppointmentItem object in the Classes pane, the heading of the Members of pane will appear as Members of AppointmentItem.
The interfaces and members of the Microsoft.Office.Interop.Outlook namespace that provide support for interoperability between the COM object model of Outlook and managed applications that automate Outlook are described here.