My Bizarre Email Problem (Please Help)

[Chamale]

Here's a screenshot of one of my email accounts:

Spoiler

I'm getting spammed with emails from Hotmail's postmaster, all telling me that some email Blizzard sent to someone else failed to get sent. The message from Blizzard is invariably the same, with only the "to:" line changing. It's never meant for me. I've never played WoW, and I don't even have a Battle.net account. Here's an example email:

--Forwarded Message Attachment--
From: [email protected]
To: {redacted}@gmail.com
Subject: World of Warcraft Account Administration
Date: Sun, 10 Oct 2010 11:15:06 +0800








Greetings,

We are excited to announce the World of Warcraft: Cataclysm beta opt-in is
now available.

In the beta test you will be given an opportunity to provide your feedback on
the overall gameplay experience as well as experience new playable worgen and
goblin races, new zones, professions and more. For a full list of features
please follow this link: http://boti1e.net

We will be selecting account holders of Battle.net and World of Warcraft
accounts who opted-in at random to participate in the World of Warcraft:
Cataclysm Beta Test. To opt-in for the beta test please visit the World of
Warcraft: Cataclysm website which can be accessed here.

In order to be eligible for the World of Warcraft: Cataclysm - Beta Opt In
you will need to have a valid World of Warcraft subscription in good standing
when the beta test is scheduled to commence. Should you be selected to
participate in the beta test you will be able to transfer your characters onto
our test realm and embark on the epic journey against the dreaded Deathwing!

We look forward to working with you in the World of Warcraft: Cataclsym Beta
test.

Regards,

Beta Account Support
Blizzard Entertainment

This is, it goes without saying, a weird error. I can correct this by marking [email protected] as a junk mailer, but this will cause problems if I have other problems. I want to stop the deluge, but still be able to receive email from the Postmaster. I also want someone to blame - I don't know if this is Hotmail's fault, Blizzard's fault, or this loser's fault [http://www.escapistmagazine.com/profiles/view/].

Can anyone help me? Also, has anyone else experienced this problem as well?