I split the code into 2 functions as below.  I am not sure how to call the first part in the second part.  Oh, and BodyText is actually a string.  Thanks for your help.
Function ReportOutlookBody()
    Dim db As DAO.Database
    Dim rst As DAO.Recordset
    Set db = CurrentDb
    Dim BodyText As String
    Dim OlApp As Outlook.Application
    Dim ObjMail As Outlook.MailItem
    
    Dim strTableBeg As String
    Dim strTableBody As String
    Dim strTableEnd As String
    Dim strFntNormal As String
    Dim strTableHeader As String
    Dim strFntEnd As String
    Dim lngID As Long
    Dim strSQL As String
    Dim mailaddress As Variant
    Dim strSubject As String
Dim OApp As Object, OMail As Object, signature As String
        'Define format for output
    strTableBeg = "<br><br><table border=1 cellpadding=3 cellspacing=0>"
    strTableEnd = "</table><BR><BR>Please be assured that we are making best efforts to optimize our supply resources, which should minimize any further delays."
    strTableHeader = "<font size=3 face=" & Chr(34) & "Arial" & Chr(34) & "><b>" & _
                        "<tr bgcolor=lightblue>" & _
                            TD("Customer:") & _
                            TD("Ship-to:") & _
                            TD("Order Number:") & _
                            TD("Purchase Order:") & _
                            TD("Customer:") & _
                            TD("Product:") & _
                            TD("Requested Ship Date:") & _
                            TD("Plant Anticipated Date:") & _
                            "</tr></b></font>"
                            StrContent = StrContent & "Limit Changes: " & Forms!Main.lstorders.Column(1) & Chr(13)
    strFntNnormal = "<font color=black face=" & Chr(34) & "Arial" & Chr(34) & " size=2>"
    strFntEnd = "</font>"
        
    
Dim strList As String
Dim varItem As Variant
    Dim i As Long
    Set lst = Forms!Main!lstorders
    If lst.MultiSelect Then
        With lst
            For i = 1 To lst.ListCount - 1
                .Selected(i) = True
            Next i
        End With
    End If
    On Error GoTo 0
    ' now call the after update event of the listbox merely to check the cmdsend button caption
   ' Call lstorders_AfterUpdate
    i = 0
With Forms!Main!lstorders
For Each varItem In Forms!Main!lstorders.ItemsSelected
strList = strList & Forms!Main!lstorders.Column(0, varItem) & ","
Next
If strList <> "" Then
strList = Left(strList, Len(strList) - 1)
strList = "(" & strList & ")"
strSQL = "SELECT * FROM tblTrucks WHERE [ID] IN " & strList & ";"
'(send e-mail)
Else
MsgBox ("Please select an order from the list.")
End If
 
 End With
 
Set rst = CurrentDb.OpenRecordset(strSQL)
strTableBody = strTableBeg & strFntNormal & strTableHeader
    
   Do Until rst.EOF
        strTableBody = strTableBody & _
                        "<tr>" & _
                            TD(rst![Customer]) & _
                            TD(rst![Ship-to]) & _
                            TD(rst![Sales Doc]) & _
                            TD(rst![PO#]) & _
                            TD(rst![City]) & _
                            TD(rst![Mat Description]) & _
                            TD(rst![PlGI date]) & _
                            TD(rst![Plant Anticipated Date]) & _
                        "<tr>"
                        
BodyText = "<HTML><BODY>Hi Team,<BR><BR>Below are the Late Notifications for today.  Please send out an email to the customer through the Late Order Notification Database <BR></BODY></HTML>"
    rst.MoveNext
    Loop
                        
    strTableBody = strTableBody & strFntEnd & strTableEnd
    
    rst.Close
   Set rst = Nothing
End Function
Function SendeMail()
 Set OApp = CreateObject("Outlook.Application")
Set OMail = OApp.CreateItem(0)
     With OMail
     'Set body format to HTML
       .To = ""
       .Display
        .Subject = "Late Order Notifications"
       .HTMLBody = strFntNormal & BodyText & strTableBody & "<br>" & .HTMLBody
      End With
Set OMail = Nothing
Set OApp = Nothing 
    
End Function