Received this email which wasn't blocked by any of the spam filters, Here's an extract...
DEAR BELOVED FRIEND. I know that this letter may be a very big surprise to you, I came across your email contact from my personal search and I instructed the doctor here in this hospital to help me email you and I believe that you will be honest to fulfill my final wish before I will die. I am Mrs. Gloria Caldwell from LONDON..
The sender had a legit looking email address (firstname.lastname@example.org
I checked the email headers and using a reverse IP, tracked down a server in Houston Texas. I sent an abuse email to the providers stating such. However, this doesn't track down the sender. I subscribe to a service called Readnotify.com. I was able to return the email (via this service) once the mail was delivered and read, the email would 'self destruct' itself and return the details via Readnotify.
The return message (part of)..
Opened at apparent address of: email@example.com
Shown 15-Mar-08 at 17:37:12pm (UTC +00:00) - 6hours42mins13secs after sending
Location Lagos, Nigeria (86% likelihood)
Say no more...................
P.S Readnotify.com offers a 28 day free service