Bounced Email Handling

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

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import sys
import chilkat

bounce = chilkat.CkBounce()

success = bounce.UnlockComponent("Anything for 30-day trial")
if (success == False):
    print bounce.lastErrorText()
    sys.exit()

#  The mailman object is used for receiving (POP3)
#  and sending (SMTP) email.
mailman = chilkat.CkMailMan()

#  Any string argument automatically begins the 30-day trial.
success = mailman.UnlockComponent("30-day trial")
if (success != True):
    print mailman.lastErrorText()
    sys.exit()

#  Set the POP3 server's hostname
mailman.put_MailHost("mail.chilkatsoft.com")

#  Set the POP3 login/password.
mailman.put_PopUsername("myLogin")
mailman.put_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 CkEmailBundle
bundle = mailman.CopyMail()

if (bundle == None ):
    print mailman.lastErrorText()
    sys.exit()

for i in range(0,bundle.get_MessageCount()):
    # email is a CkEmail
    email = bundle.GetEmail(i)

    success = bounce.ExamineEmail(email)
    if (success == False):
        print bounce.lastErrorText()
        sys.exit()

    if (bounce.get_BounceType() == 1):
        #  Hard bounce, log the email address
        print "Hard Bounce: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 2):
        #  Soft bounce, log the email address
        print "Soft Bounce: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 3):
        #  General bounce, no email address available.
        print "General Bounce: No email address"

    if (bounce.get_BounceType() == 4):
        #  General bounce, log the email address
        print "General Bounce: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 5):
        #  Mail blocked, log the email address
        #  A bounce occured because the sender was blocked.
        print "Mail Blocked: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 6):
        #  Auto-reply, log the email address
        print "Auto-Reply: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 7):
        #  Transient (recoverable) Failure, log the email address
        print "Transient Failure: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 8):
        #  Subscribe request, log the email address
        print "Subscribe Request: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 9):
        #  Unsubscribe Request, log the email address
        print "Unsubscribe Request: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 10):
        #  Virus Notification, log the email address
        print "Virus Notification: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 11):
        #  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.
        print "Suspected Bounce!"

    if (bounce.get_BounceType() == 12):
        #  Challenge/Response - Auto-reply message sent by SPAM software
        #  where only verified email addresses are accepted.
        print "Challenge: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 13):
        #  Address Change Notification Message.
        print "Address Change: " + bounce.bounceAddress()

    if (bounce.get_BounceType() == 14):
        #  Success DSN indicating that the message was successfully relayed.
        print "DSN Successful Relay: "

mailman.Pop3EndSession()