--- /dev/null
+Notmuch is free software.
+
+You can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation,
+either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program, (in the COPYING-GPL-3 file in this
+directory). If not, see http://www.gnu.org/licenses/