I just now discovered that I too have received this "unapproved visitor message" on Pet Talk!

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My Name is Mrs Betty Jim from Unites State I want to tell you this because I don't have any other option than to say it, I married to Mr. Jim Benson who worked with Unites State embassy in Ghana for nine years before he died in the year 2005.We were married for eleven years without a child.
He died after a brief illness that lasted for only five days. Since his death I decided not to remarry, When my late husband was alive he deposited the sum of US$ 8.5m (Eight Million Five hundred Thousand Dollars) in a bank in Accra the capital city of Ghana Presently this money is still in bank. He made this money available for exportation of Gold from Ghana mining.
Recently, My Doctor told me that I would not last 1 months due to cancer problem. I decided to hand you over this money to take care of the less-privileged people, you will utilize this money the way I am going to instruct here.
Hoping to receive your reply: in my mailbox: [[email protected]]
From Mrs Betty.
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AT LAST! I can get that Porsche I've had my eye on for years!