From: digg invite [mailto:email@example.com]
Subject: Come join my network at digg
rob has recently joined digg and would like to send you an invitation. With digg you can help promote and share news to the millions of digg viewers with a single click (digging a story).
It’s free to join and only takes a minute to sign up! http://www.digg.com/register
Digg will NOT store your email address, even if you opt out!
Digg will store only an encrypted key, which even Digg can’t decipher.