Hi (INSERT NAME HERE)
im not sure you are familiar with the concept of civil replys. the fact that you've read the mail has been made abundantly clear in your reply but as far as the standard of the reply in the way of size is concerned, you still leave a lot to be desired. young (lady/man)
i sincerely hope that you appreciate the depth of the message conveyed by this mail. remember, a genuine effort towards life never goes unrewarded. in conclusion, and on a personal note i would like to inform you that if you do not send better mails i shall be liable to knock your ruddy head off.
I hope the above proves useful..