Hyperlink not working using Range to HTML function

Using some VBA to grab a table of information and paste to the body of an email using range to html. The problem seems to be with the hyperlink, since the function is just grabbing it as text and formatting it accordingly. The vba i'm using is:

Sub Archive_Send()

    Dim rng As Range
    Dim OutApp As Object
    Dim OutMail As Object
    Dim rngTo As Range
    Dim rngSubject As Range
    Dim rngBody1 As Range
    Dim StrBody As String
    Dim StrBody1 As String

    Set rng = Nothing
    On Error Resume Next

    Set rng = Sheets("Posting").Range("B5:C55").SpecialCells(xlCellTypeVisible)

    On Error GoTo 0

    If rng Is Nothing Then
        MsgBox "The selection is not a range or the sheet is protected" & _
               vbNewLine & "please correct and try again.", vbOKOnly
        Exit Sub
    End If

    With Application
        .EnableEvents = False
        .ScreenUpdating = False
    End With

    Set OutApp = CreateObject("Outlook.Application")
    Set OutMail = OutApp.CreateItem(0)
    Set rngTo = Sheets("Email").Range("C5")
    Set rngSubject = Sheets("Email").Range("C3")
    Set rngBody1 = Sheets("Email").Range("C13")

    On Error Resume Next
    With OutMail
        .To = rngTo.Value
        .Subject = rngSubject.Value
        .HTMLBody = .HTMLBody & rngBody1.Value & "" _
         & RangetoHTML(rng) _
         & "<br><br>Best Regards,<br><br></font></span>"
        .Display
    End With
    On Error GoTo 0

    With Application
        .EnableEvents = True
        .ScreenUpdating = True
    End With

    Set OutMail = Nothing
    Set OutApp = Nothing

    Application.ReferenceStyle = xlA1
End Sub

Function RangetoHTML(rng As Range)

    Application.ScreenUpdating = False
    Application.DisplayAlerts = False

    Dim fso As Object
    Dim ts As Object
    Dim TempFile As String
    Dim TempWB As Workbook

    TempFile = Environ$("temp") & "\" & Format(Now, "dd-mm-yy") & ".htm"

    rng.Copy
    Set TempWB = Workbooks.Add(1)
    With TempWB.Sheets(1)
        .Cells(1).PasteSpecial Paste:=8
        .Cells(1).PasteSpecial xlPasteValues, , False, False
        .Cells(1).PasteSpecial xlPasteFormats, , False, False
        .Cells(1).Select
        Application.CutCopyMode = False
        On Error Resume Next
        .DrawingObjects.Visible = True
        On Error GoTo 0
    End With

    With TempWB.PublishObjects.Add( _
         SourceType:=xlSourceRange, _
         Filename:=TempFile, _
         Sheet:=TempWB.Sheets(1).Name, _
         Source:=TempWB.Sheets(1).UsedRange.Address, _
         HtmlType:=xlHtmlStatic)
        .Publish (True)
    End With

    Set fso = CreateObject("Scripting.FileSystemObject")
    Set ts = fso.GetFile(TempFile).OpenAsTextStream(1, -2)
    RangetoHTML = ts.ReadAll
    ts.Close
    RangetoHTML = Replace(RangetoHTML, "align=center x:publishsource=", _
                          "align=left x:publishsource=")

    TempWB.Close SaveChanges:=False

    Kill TempFile

    Set ts = Nothing
    Set fso = Nothing
    Set TempWB = Nothing

End Function