Is this a legit email from Universe Sandbox?

[Kyuki]

Is this a legit email from you guys?

from:    Universe Sandbox <Tnvkfb5F@opayq.com>
reply-to:    FWD_Tnvkfb5F@opayq.com
to:    e1e6bbf5@opayq.com
date:    Wed, Nov 27, 2013 at 9:24 PM
subject:    Universe Sandbox 2 Alpha
signed-by:    opayq.com

To activate on Steam:

1 - Start up Steam and log in OR download Steam and create an account from this site:
http://store.steampowered.com/about/
2 - From the Steam application menu click on Games > Activate a Product on Steam…
3 - Follow the instructions and enter this product code: *******************

It comes with a key for steam.

I'm just being cautious because I don't want my account to be disabled or banned.

[Naru523]

Yes, it's the e-mail for the product code. Not entirely sure about the sender, though, but it seems trustworthy.

[Kyuki]

Yes, it's the e-mail for the product code. Not entirely sure about the sender, though, but it seems trustworthy.

I use MaskMe to thwart spam and other things. That could be why the sender is weird because it forwards to my official email account.