Chilkat Bounce recognizes a variety of bounced email messages and can extract the email address from a bounced email. Here are some key features of "Chilkat Bounce ActiveX":    Recognize hard bounces and return the bounced email address.    Recognize soft bounces and return the bounced email address.    Recognize "sender blocked" bounces.    Recognize auto-reply emails, such as "out-of-office" email.    Recognize transient messages, such as "Delivery Status / No Action Required".    Recognize unsubscribe and subscribe requests.    Recognize virus email notifications.    Recognize Anti-SPAM challenge/response emails.    Recognize email address change notification messages.