OK, this takes the cake for the weirdest spam to arrive in my inbox for quite some time:
Dear Portal Administration!
I have recently come across your site and liked it very much.
I suppose that the visitors of our resources belong to the same social group and my site could be useful for your audience so I suggest to exchange our links. This will help both of us to increase Link-Popularity and accordingly get top positions in many searching system, Google for instance.
My site is dedicated to guns.