How to Determine if Email is a Bounce of Automated Reply

Demonstrates how to use the Chilkat Bounce component to determine if an email is an bounce (DSN) or an automated reply.

Download Chilkat Ruby Library

require 'chilkat'

bounce = Chilkat::CkBounce.new()

success = bounce.UnlockComponent("Anything for 30-day trial")
if (success == false)
    print "Failed to unlock component" + "\n"
    exit
end

email = Chilkat::CkEmail.new()

#  Load an email from a .eml file.
#  (This example loads an Email object from a .eml file,
#  but the object could've just as well been loaded by reading
#  directly from a POP3 or IMAP mail server.)
success = email.LoadEml("sampleBounce.eml")
if (success == false)
    print email.lastErrorText() + "\n"
    exit
end

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
    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