Bounced Email Handling

Download Chilkat Bounce ActiveX

Demonstrates how to examine emails and detect which are bounced (automated) replies. Classifies each email according to the type of bounce.

Download Chilkat Email ActiveX

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
Set outFile = fso.CreateTextFile("output.txt", True)

set bounce = CreateObject("Chilkat.Bounce")

success = bounce.UnlockComponent("Anything for 30-day trial")
If (success = 0) Then
    MsgBox bounce.LastErrorText
    WScript.Quit
End If

'  The mailman object is used for receiving (POP3)
'  and sending (SMTP) email.
set mailman = CreateObject("Chilkat.MailMan2")

'  Any string argument automatically begins the 30-day trial.
success = mailman.UnlockComponent("30-day trial")
If (success <> 1) Then
    MsgBox mailman.LastErrorText
    WScript.Quit
End If

'  Set the POP3 server's hostname
mailman.MailHost = "mail.chilkatsoft.com"

'  Set the POP3 login/password.
mailman.PopUsername = "myLogin"
mailman.PopPassword = "myPassword"

'  Copy the all email from the user's POP3 mailbox
'  into a bundle object.  The email remains on the server.
'  (There are other methods for deleting email from a POP3 server.)
' bundle is a Chilkat.EmailBundle2
Set bundle = mailman.CopyMail()

If (bundle Is Nothing ) Then
    MsgBox mailman.LastErrorText
    WScript.Quit
End If

For i = 0 To bundle.MessageCount - 1
    ' email is a Chilkat.Email2
    Set email = bundle.GetEmail(i)

    success = bounce.ExamineEmail(email)
    If (success = 0) Then
        MsgBox bounce.LastErrorText
        WScript.Quit
    End If

    If (bounce.BounceType = 1) Then
        '  Hard bounce, log the email address
        outFile.WriteLine("Hard Bounce: " & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 2) Then
        '  Soft bounce, log the email address
        outFile.WriteLine("Soft Bounce: " & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 3) Then
        '  General bounce, no email address available.
        outFile.WriteLine("General Bounce: No email address")
    End If

    If (bounce.BounceType = 4) Then
        '  General bounce, log the email address
        outFile.WriteLine("General Bounce: " _
             & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 5) Then
        '  Mail blocked, log the email address
        '  A bounce occured because the sender was blocked.
        outFile.WriteLine("Mail Blocked: " & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 6) Then
        '  Auto-reply, log the email address
        outFile.WriteLine("Auto-Reply: " & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 7) Then
        '  Transient (recoverable) Failure, log the email address
        outFile.WriteLine("Transient Failure: " _
             & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 8) Then
        '  Subscribe request, log the email address
        outFile.WriteLine("Subscribe Request: " _
             & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 9) Then
        '  Unsubscribe Request, log the email address
        outFile.WriteLine("Unsubscribe Request: " _
             & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 10) Then
        '  Virus Notification, log the email address
        outFile.WriteLine("Virus Notification: " _
             & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 11) Then
        '  Suspected bounce.
        '  This should be rare.  It indicates that the Bounce
        '  component found strong evidence that this is a bounced
        '  email, but couldn't quite recognize everything it
        '  needed to be 100% sure.  Feel free to notify
        '  support@chilkatsoft.com regarding emails having this
        '  bounce type.
        outFile.WriteLine("Suspected Bounce!")
    End If

    If (bounce.BounceType = 12) Then
        '  Challenge/Response - Auto-reply message sent by SPAM software
        '  where only verified email addresses are accepted.
        outFile.WriteLine("Challenge: " & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 13) Then
        '  Address Change Notification Message.
        outFile.WriteLine("Address Change: " _
             & bounce.BounceAddress)
    End If

    If (bounce.BounceType = 14) Then
        '  Success DSN indicating that the message was successfully relayed.
        outFile.WriteLine("DSN Successful Relay: ")
    End If

Next

mailman.Pop3EndSession 
outFile.Close