You can unsubscribe from the mailing list in the "Settings". Click on your photo in the upper right corner of the screen > "Settings" > "Notifications". Now you can choose which notifications you want to receive.
Unsubscribe from the mailing list you can through the section "Notifications" in the "Settings". Open "Menu" by clicking on the upper right corner of the screen > "Settings" > "Notifications".
Important! If you want to be aware of what's new on the site, at any time you can return to the "Settings" and include what letters you are interested in receiving.