Blizzard emails concerning accounts - Legit?

Just wanted to know, preferably from a GM if this email is legit. Cause I've been getting quite a few similar ones and it's starting to confuse me. Up to now I've ignored them but isn't noreply@blizzard.com supposedly the real deal?
It would be nice to have a blue post! Cause it looks pretty convincing.... If it's an attempt to take my account, not that worried cause I have an authenticator.

Greetings

World of Warcraft -> Legal -> End User License Agreement
and Section 8 of the Terms of Use:
Blizzard Entertainment -> Legal -> Terms of Use
A 3-hour probationary suspension is pending on this account, awaiting confirmation from a specialist. A final warning has been issued. The investigation will be continued by the Account Administration team to determine the any further suspensions. If the account in question is found in violation of the EULA and Terms of Use, further action will be taken. Be aware that any additional inappropriate actions may result in the permanent closure of the account.
Thank you for respecting our position on this matter.
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** We request that you verify your legitimate ownership of the account here:
<snip>

Blizzard staff will verify your account information submitted in two days, please do not modify your account information during this time . It will not affect your game uptime.If you are unable to successfully verify your password . using the automated system, please contact Billing & Account Services at 1-800-59-BLIZZARD (1-800-592-5499) Mon-Fri, 8am-8pm Pacific Time or at billing@blizzard.com. Account security is solely the responsibility of the account holder. Please be advised that in the event of a compromised account, Blizzard representatives typically must lock the account. In these cases the Account Administration team will require faxed receipt of ID materials before releasing the account for play.

Regards

Blizzard Entertainment