You get full mail access. This means you will be able to change email.

Spam filters are installed on the owner's mailbox, and all emails from Riot Games are automatically moved to the spam folder without notification.

We recommend that you familiarize yourself with other accounts presented in my assortment - https://lzt.market/user/9262970/

Note: the word "tmk" added for convenience and is not related to the account itself.