Emails from the site

Hello! My name is Dmitry. I use Drupal 7 for my work. Could you please tell me where I can change the template text of the email being sent (for example, when an admin writes to a user from the site)? (I need to remove the first lines: the greeting, the link to the admin, and the link to the user)

P.S. The email templates used during user registration can be changed easily:    /admin/config/people/accounts