Item Types and Message Classes
| Outlook Developer Reference |
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The message class for an item is defined by its MessageClass property, and is used to identify the form that should be used to display the item.
| IPM.Activity |
Journal entries |
| IPM.Appointment |
Appointments |
| IPM.Contact |
Contacts |
| IPM.DistList |
Distribution lists |
| IPM.Document |
Documents |
| IPM.OLE.Class |
The exception item of a recurrence series |
| IPM |
Items for which the specified form cannot be found |
| IPM.Note |
E-mail messages |
| IPM.Note.IMC.Notification |
Reports from the Internet Mail Connect (the Exchange Server gateway to the Internet) |
| IPM.Note.Rules.Oof.Template.Microsoft |
Out-of-office templates |
| IPM.Post |
Posting notes in a folder |
| IPM.StickyNote |
Creating notes |
| IPM.Recall.Report |
Message recall reports |
| IPM.Outlook.Recall |
Recalling sent messages from recipient Inboxes |
| IPM.Remote |
Remote Mail message headers |
| IPM.Note.Rules.ReplyTemplate.Microsoft |
Editing rule reply templates |
| IPM.Report |
Reporting item status |
| IPM.Resend |
Resending a failed message |
| IPM.Schedule.Meeting.Canceled |
Meeting cancellations |
| IPM.Schedule.Meeting.Request |
Meeting requests |
| IPM.Schedule.Meeting.Resp.Neg |
Responses to decline meeting requests |
| IPM.Schedule.Meeting.Resp.Pos |
Responses to accept meeting requests |
| IPM.Schedule.Meeting.Resp.Tent |
Responses to tentatively accept meeting requests |
| IPM.Note.Secure |
Encrypted notes to other people |
| IPM.Note.Secure.Sign |
Digitally signed notes to other people |
| IPM.Task |
Tasks |
| IPM.TaskRequest.Accept |
Responses to accept task requests |
| IPM.TaskRequest.Decline |
Responses to desline task requests |
| IPM.TaskRequest |
Task requests |
| IPM.TaskRequest.Update |
Updates to requested tasks |