Around 30 billion emails are sent each day and about half of those are spam in some form.

That spam is made up as follows:

 

Does Spam Work?

A proportion of the spam messages are just lazy advertising by genuine companies but vast amounts of it is scam messages of various kinds.

How effective the scam messages are in getting a response depends very much on exactly what it is. But typically, scam messages receive 1 reply in more than a million messages.

That seems extremely ineffective, but if the scammer sends enough millions of messages then they will get sufficient replies to enable them to steal from people.

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