Diagram of the sending of spam e-mail.
<a href="https://en.wikipedia.org/wiki/en:User:Fubar_Obfusco" class="extiw" title="w:en:User:Fubar Obfusco">Fubar_Obfusco</a>
<a class="external free" href="https://en.wikipedia.org/wiki/Image:Circle-of-spam.png">http://en.wikipedia.org/wiki/Image:Circle-of-spam.png</a>