https://github.com/maldevel/EmailHarvester and https://github.com/4383/EmailHarvester are both tools to retrieve domain email addresses from search engines[1][2][3]. https://github.com/maldevel/EmailHarvester is licensed under the GNU General Public License v3.0[4], which allows users to make available complete source code of licensed works and modifications, including larger works using a licensed work[4]. https://github.com/4383/EmailHarvester does not appear to have a license associated with it.
