Every day there are lots of scams sent out via email. They tend to fall into categories, and this is a list of the main categories, with an example of each. The bottom line is this ... if it sounds too good to be true, it's probably not true. TCSL blog
Scam type Description
419 The email purports to come from someone who has a huge amount of money to get out of some country, and they need you to help. What they really want is either access to your bank account, or perhaps they'll need you to send a small amount of money for "banking fees" to release the money. Sometimes it's a "barrister", sometimes the wife of the son of some African despot... sometimes it's a soldier in Iraq... but it's never true.
fake lottery winThe email tells you you've won the lottery. Most times it will be a lottery that you've never even heard of, let alone entered. If you were playing poker, this is what's known as a "tell". Folks, real lotteries do not notify you by email. Again, they want access to your bank account, or they'll require a small amount of money up front for "processing fees".
fake FBI This email pretends to come from the FBI, and they want you to send some critical personal identification, such as your tax return. Here's the thing... if the FBI wants your tax return, they won't ask _you_ for it, and if they want to contact you, they won't send you email ;-)
secret shopper "Secret Shopper" jobs probably do exist, but you can be confident that they are not recruited by random email. The email solicitors are generally either looking to take money _out_ of your account, instead of depositing it, or they are looking for a money mule. (A money mule is where Bad Guys are looking to launder money thru your account. Usually, they get you to collect funds, perhaps for something sold thru eBay, and then send those funds overseas. You are allowed to keep some percentage, and all is well until the Secret Service or FBI turn up at your door.