Scam email or Riot has language problems?

Heya.

Received this email today in the junk-folder of the email account which my league accounts are registered to. Now I'm not sure if this is a quite realistically looking scam mail (it names both my account names, and only Riot should know that they belong to this email adress) or Riot has some issues identifying the correct language of a user. ...not sure what language that is, but I don't speak it and never selected it anywhere on any account or client.

If it's the later I guess it has something to do with the login name changing that came up recently?

If it's a scam, please be warned and warry of similar emails.

Is [email protected] an actual riot adress? If not, how did they learn the login names of both my accounts (and the matching email)?

Edit: On second thought, definitely more likely a scam. The regions for my accounts are wrong. Still curious how they got my login names in correlation to my email adress.