How to trigger ItemAdd, from a class module, when I receive a message?

Question

I researched the ItemAdd event and created a class module that follows the example. My macro won't fire when I receive new messages.

The macro parses data within the email and saves it to an Excel file. It is in it's own module. I can run it manually.
I am trying to have it append new data each time I receive a new copy of the specific message.
I have a rule that forwards these emails into a special folder, Folder X, where I want the code to search for new messages.

My code in a class module.

Public WithEvents myOlItems As Outlook.Items

Public Sub Initialize_handler()

    ' Reference the items in the Inbox. Because myOlItems is declared
    ' "WithEvents" the ItemAdd event will fire below.
    Set myOlItems = Application.GetNamespace("MAPI").GetDefaultFolder(olFolderInbox).Folders("Folder X").Items
End Sub

Private Sub myOlItems_ItemAdd(ByVal Item As Object)

    Dim objMail As Outlook.MailItem
    Dim count As Integer
    Dim myTitlePos As Integer
    Dim myTitleLen As Integer
    Dim myVarPos As Integer
    Dim myVarLen As Integer
    Dim strPrice As String
    Dim strYear As String
    Dim myVarCRLF As Integer
    Dim myDate As Date
    Dim newLineTest As String 

    ' Check to make sure it is an Outlook mail message, otherwise
    ' subsequent code will probably fail depending on what type
    ' of item it is.
      
    If TypeName(Item) = "MailItem" Then

       'This is where all the working data parsing takes place.

    End If

End Sub

Answer 1

Instead of trying to have the routine initialize in ThisOutlookSession, Manage Rules & Alerts to Run a Script, where your script will be your routine. -Redplaya

Answer 2

Just a sanity check here... have you created an instance of this class?

i.e. something like:

Dim c As MyClass
Private Sub Application_Startup()
    c = New MyClass
    ' If you don't rename Initialize_handler, you'll need:
    ' c.Initialize_handler
End Sub

in ThisOutlookSession...

I expect you'll also be wanting to change Initialize_handler to Class_Initialize unless you want to have to make an explicit call to it...