(CkPython) 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

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

bounce = chilkat.CkBounce()

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

# 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 (mailman.get_LastMethodSuccess() == False):
    print(mailman.lastErrorText())
    sys.exit()

i = 0

while i < 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: ")

    i = i + 1

success = mailman.Pop3EndSession()