AMO home page: https://addons.thunderbird.net/thunderbird/addon/send-later-3/
User guide: https://extended-thunder.github.io/send-later/
Maintainer: Jonathan Perry-Houts
<jph@extended-thunder.org>
Original author: Jonathan Kamens
<jik@extended-thunder.org>
Copyright (c) 2010-2020 Jonathan Kamens, 2020-2021 Jonathan Perry-Houts.
Released under the terms of the Mozilla Public License, v. 2.0. Full text of the MPL can be found in the file LICENSE.