MailItem.Application Property (Outlook)
Returns an Application object that represents the parent Outlook application for the object. Read-only.
Syntax
expression .Application
expression A variable that represents a MailItem object.
Example
This Visual Basic for Applications (VBA) example uses the Application property to access Outlook, creates a new MailItem and displays the version of Outlook used to create the item.
Sub CreateMailItem()
Dim myItem As Outlook.MailItem
Set myItem = Application.CreateItem(olMailItem)
MsgBox myItem.Application.Version
End Sub