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(Ruby) Bounced Email Handling

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

Chilkat Ruby Downloads

Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

bounce = Chilkat::CkBounce.new()

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

# 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() + "\n";
    exit
end

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() + "\n";

        exit
    end

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

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

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

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

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

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

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

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

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

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

    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!" + "\n";
    end

    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() + "\n";
    end

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

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

    i = i + 1
end

success = mailman.Pop3EndSession()

 

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