Any way that the SENDER of a private message can be notified that the person they SENT a message to did not receive it?
Otherwise, the sender may presume the intended recipient is ignoring them, when in fact, they did not receive it when their email address has goes bad.

While I see the merit in the request, it has been agreed upon at this is not an idea we are going to pursue for a number of reasons. Additionally, if the recipient member logs in, they will still have a copy of the message located in their message center. Thanks