FairEmail uses:
- JavaMail. Copyright (c) 1997-2018 Oracle® and/or its affiliates. All rights reserved. GPLv2+CE license.
- jsoup. Copyright © 2009 - 2017 Jonathan Hedley. MIT license.
- Android Support Library. Copyright (C) 2011 The Android Open Source Project. Apache license 2.0.
- Android Architecture Components. Copyright 2018 The Android Open Source Project, Inc. Apache license 2.0.
- dnsjava. Copyright (c) 1998-2011, Brian Wellington. BSD License.
- OpenPGP API library. Copyright (C) 2014-2015 Dominik Schürmann. Apache License 2.0.
- Android SQLite support library. Copyright (C) 2017 requery.io. Apache License 2.0.
- App shortcut icon generator. Copyright ???. Apache License 2.0.
- Mozilla ISPDB. Free to use for any client.
- ShortcutBadger. Copyright 2014 Leo Lin. Apache license 2.0.
- Bugsnag exception reporter for Android. Copyright (c) 2012 Bugsnag. MIT License.
- biweekly. Copyright (c) 2013-2018, Michael Angstadt. BSD 2-Clause.
- PhotoView. Copyright 2018 Chris Banes. Apache License 2.0.
- ReLinker. Copyright 2015 - 2016 KeepSafe Software, Inc. Apache License 2.0.
- Markwon. Copyright 2019 Dimitry Ivanov. Apache License 2.0.
- Color Picker. Copyright 2014-2017 QuadFlask. Apache License 2.0.
- Bouncy Castle. Copyright (c) 2000 - 2019 The Legion of the Bouncy Castle Inc. MIT License.
- AppAuth for Android. Copyright 2015 The AppAuth for Android Authors. All Rights Reserved. Apache License 2.0.
- JCharset. Copyright (C) 1989, 1991 Free Software Foundation, Inc. GNU General Public License.
- Material design icons. Copyright ???. Apache license version 2.0.
- CSS Parser. Copyright © 1999–2019. All rights reserved. Apache License, Version 2.0.
- Java™ Architecture for XML Binding. Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved. GNU General Public License Version 2.