[EXIM] How did this e-mail get delivered?

I have attached the header from a spammer. I am trying to figure out how it got
to me because I find the
recipient address (my) anywhere in the header??? I am running exim 2.04. How can
I prevent this?

Thanks.
Imran.

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todd54@??? wrote:

> Are the "7-10 cents per click" programs not making you enough money?
> Are your sponsors not letting you use consoles or hidden links?
> Would you like to make THOUSANDS of DOLLARS a month?
>
> Welcome to "Casino of the Kings" Partner's Program.




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