Outlook macros

This macro is from https://sites.google.com/site/markbird/

This Outlook macro will politely remind you to attach a file if it finds the word "attach" in your email and no actual attached file.

Add the macro to ThisOutlookSession in the Visual Basic Editor (Alt-F11).

Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
Dim m As Variant
Dim strBody As String
Dim intIn As Long
Dim intAttachCount As Integer, intStandardAttachCount As Integer
On Error GoTo handleError
'Edit the following line if you have a signature on your email that includes images or other files. Make intStandardAttachCount equal the number of files in your signature.
intStandardAttachCount = 0
strBody = LCase(Item.Body)
intIn = InStr(1, strBody, "original message")
If intIn = 0 Then intIn = Len(strBody)
intIn = InStr(1, Left(strBody, intIn), "attach")
intAttachCount = Item.Attachments.Count
If intIn > 0 And intAttachCount <= intStandardAttachCount Then
    
    m = MsgBox("It appears that you mean to send an attachment," & vbCrLf & "but there is no attachment to this message." & vbCrLf & vbCrLf & "Do you still want to send?", vbQuestion + vbYesNo + vbMsgBoxSetForeground)
    If m = vbNo Then Cancel = True
    
End If
handleError:
If Err.Number <> 0 Then
    MsgBox "Outlook Attachment Reminder Error: " & Err.Description, vbExclamation, "Outlook Attachment Reminder Error"
End If
End Sub