Save Emails to the File System

The sample automatically saves emails as *.msg files to the file system as soon as they arrive in the inbox. The email's subject and received time will be used for the file name. The directory, for example 'd:\mails', must exist already.

  How to add macros to Outlook

Private WithEvents Items As Outlook.Items

Private Sub Application_Startup()
  Dim Ns As Outlook.NameSpace
  Set Ns = Application.GetNamespace("MAPI")
  Set Items = Ns.GetDefaultFolder(olFolderInbox).Items
End Sub

Private Sub Items_ItemAdd(ByVal Item As Object)
  If TypeOf Item Is Outlook.MailItem Then
    SaveMailAsFile Item
  End If
End Sub

Private Sub SaveMailAsFile(oMail As Outlook.MailItem)
  Dim dtDate As Date
  Dim sName As String
  Dim sFile As String
  Dim sExt As String
  
  sPath = "d:\mails"
  sExt = ".msg"
  sName = oMail.Subject
  ReplaceCharsForFileName sName, "_"
  dtDate = oMail.ReceivedTime
  sName = Format(dtDate, "yyyymmdd", vbUseSystemDayOfWeek, _
    vbUseSystem) & Format(dtDate, "-hhnnss", _
    vbUseSystemDayOfWeek, vbUseSystem) & "-" & sName & sExt

  oMail.SaveAs sPath & sName, olSaveAsMsg 
End Sub

Private Sub ReplaceCharsForFileName(sName As String, _
  sChr As String _
)
  sName = Replace(sName, "/", sChr)
  sName = Replace(sName, "", sChr)
  sName = Replace(sName, ":", sChr)
  sName = Replace(sName, "?", sChr)
  sName = Replace(sName, Chr(34), sChr)
  sName = Replace(sName, "<", sChr)
  sName = Replace(sName, ">", sChr)
  sName = Replace(sName, "|", sChr)
End Sub