Generally, when you send an email message and it fails to be delivered, you get a “bounce back” to inform you of this. This delivery failure notification system is inherent in the way email works and does a good job, in general. However, it has some serious limitations:
- The failure notice is spam filtered or otherwise lost, you will never know the message wasn’t delivered.
- Email spoofing is prevalent and that can cause you to receive all kinds of “backscatter” failure notices about messages that you never sent. As a result, you may be blocking or deleting failure messages or may merely not notice a real failure notice amidst the back scatter garbage.
- The failure messages are long and in varied formats. It may be difficult for the average person to determine the actual reason for the failure.
- If you have many failure messages (e.g. because you are sending out a newsletter) it is hard to convert a bunch of failure messages into a list of failed recipients together with the reasons for the failures.
- It is not simple for a manager to get reports of send failures by his/her staff … which may be very important so that business opportunities are not lost.
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