I got similiar ad/emails some months ago for a different product. They only come attached to a posting on PeachParts. Not from my outlook acc't. My AV doesn't see it 'cause it seems to be from an approved site.
Here is a copy of the email..I got 2 to-day :....

Dear Brian McL,

DO NOT REPLY TO THIS EMAIL.
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ssdressessimple has just replied to a thread you have subscribed to entitled - 1990 500sl aftermarket radio help - in the Car Audio and Multimedia forum of the PeachParts Mercedes ShopForum.

This thread is located at:
http://www.peachparts.com/shopforum/car-audio-multimedia/295420-1990-500sl-aftermarket-radio-help-new-post.html

Here is the message that has just been posted:
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