>>I have adjusted it to show read or not read replies. But, whatever is deleted, I cannot bring it back.
>
>Thanks but unfortunately, it also marks unread messages as read. At least, your message didn't show up in Dashboard Replies.
>
>Also I'm not sure how I can delete somebody's replies to me. I set my account to mark messages as read upon viewing them.

In addition there is Remove button when you read your reply, so you can also delete it this way.