Body Property
Returns or sets a String representing the clear-text body of the Outlook item. Read/write.
Note The EditorType property is not affected when you merely access the Body property of the item (as in MsgBox myItem.Body), but when you reset the Body property (as in myItem.Body = "This is a new body"), the EditorType reverts back to the user's default editor.
expression.Body
expression Required. An expression that returns one of the objects in the Applies To list.
Example
This VBScript example uses the Open event of an item to set its Body property.
Function Item_Open()
Item.Body = "This is the message body."
End Function