Add-on for allowing email messages to be scheduled to be sent later.
AMO home page, from which the add-on can be downloaded and installed: https://addons.thunderbird.net/thunderbird/addon/send-later-3/
User guide: https://blog.kamens.us/send-later/
Mailing list: https://groups.google.com/forum/#!forum/send-later-users
Author: Jonathan Kamens <jik+sendlater3@kamens.us>
Copyright (c) 2010-2015 Jonathan Kamens.
Released under the terms of the Mozilla Public License, v. 2.0. The MPL can be found in the file LICENSE.