Saw the first one earlier this week but that last one is concerning the number of people who want your email addy for the most trivial things as well as card called car breakdown service want my card and my addy recovery company wants my email to send a receipt for new battery... someone in the last couple of weeks has leaked my email because there has been a rash of spam lately not just viagra type crap but full phishing attempts, reported and blocked a load last night. You can see how this stuff happens.
When giving out your email you can use "plus addressing" with the name of the company/person you are giving it to, for example [email protected].
That way when you get some spam to that email address you can know what sod leaked it.