This is an email I got twice last month. I responded back with "I don't need the extra money, I'm a millionaire already." They responded back by sending the same email again!

Subject: THIS IS MY THIRD AND FINAL MAIL TO YOU ( Kindly Reply To davidsmithchambers2008@gmail.com )

Dear Friend,
On behalf of the Trustees and Executor of the estate of Late Engr. Jurgen Krugger.I once again try to notify you as my earlier letter was returned
undelivered.I hereby attempt to reach you again by this same email
address on the WILL.I wish to notify you that late Jurge Krugger made
you a beneficiary in his WILL. He left the sum of Thirty Million, One
Hundred Thousand Dollars (USD$30, 100.000.00) to you in the Codicil and
last testament to his WILL.If interested,
Email : davidsmithchambers_2008@yahoo.ie
Phone: +447045724339
I await your prompt response and please keep this very discrete and to
yourself until the transfer of the funds to you is finalised.
Yours in Service,
BARRISTER DAVID SMITH