How can I get the sender email address using Outlook.MailItem in VB.NET?

Question

I have tried using mailItem.SenderEmailAddress and mailItem.Sender.Address but they both return a string that looks like this:

/O=DO

Answer 1

If someone's still looking for a solution to this problem, here is a simplified and true-blue VBA version of the code to handle this requirement.

Public Sub GetCurrentItem()
    On Error Resume Next
    Set ObjSelectedItem = Outlook.ActiveExplorer.Selection.Item(1)
    If TypeName(ObjSelectedItem) = "MailItem" Then
        If ObjSelectedItem.SenderEmailType = "EX" Then
            MsgBox (ObjSelectedItem.Sender.GetExchangeUser.PrimarySmtpAddress)
        Else
            MsgBox (ObjSelectedItem.SenderEmailAddress)
        End If
    Else
        MsgBox ("No items selected (OR) Selected item not a MailItem.")
    End If
    Set ObjSelectedItem = Nothing
End Sub