Unsubscribing from GitHub marketing emails
Tip: If you unsubscribe from all marketing emails and then subscribe to the Explore newsletter, you'll only receive the Explore newsletter, and won't receive other marketing email.
In the upper-right corner of any page, click your profile photo, then click Settings.
In the "Access" section of the sidebar, click Emails.
Under Email preferences, select Only receive account related emails, and those I subscribe to.
Click Save email preferences.