apply_filters( 'wp_new_user_notification_email_admin', array $wp_new_user_notification_email_admin, WP_User $user, string $blogname )

Parameters

$wp_new_user_notification_email_admin

(array) Used to build wp_mail().

• 'to'
  (string) The intended recipient
  • site admin email address.
• 'subject'
  (string) The subject of the email.
• 'message'
  (string) The body of the email.
• 'headers'
  (string) The headers of the email.

$user

(WP_User) User object for new user.

$blogname

(string) The site title.