FairEmail uses parts or all of:
- 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.
- MiniDNS. Copyright 2015-2022 the original author or authors. GNU Lesser General Public License Version 2.1.
- 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.
- 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.
- File Icon Images. A collection of file type/extension SVG icons, available free for use in your applications. MIT License.
- GPX file type icon made by Freepik from Flaticon.
- Disconnect's tracker protection lists. Copyright 2010-2020 Disconnect, Inc. Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license.
- Over-Scroll Support For Android's RecyclerView, ListView, GridView, ScrollView .... Copyright (c) 2015, DoAT Media Ltd. BSD-2-Clause License
- Compact Encoding Detection. Copyright 2016 Google Inc. Apache License 2.0.
- Compact Language Detector v3. Copyright 2016 Google Inc. All rights reserved. Apache License 2.0.
- POI-HMEF. Copyright © 2001-2020 The Apache Software Foundation. Apache Software License v2.
- GoSquared's Flag Icon Set. Copyright (c) 2017 Go Squared Ltd. MIT License.
- OpenDyslexic. Copyright (c) 12/2012 - 2019. Copyright (c) 2019-07-29, Abbie Gonzalez. SIL Open Font License 1.1.
- AndroidSVG. Copyright 2013 Paul LeBeau, Cave Rock Software Ltd. Apache License 2.0.
- Public Suffix List. Copyright © 2007–20 Mozilla Foundation. Mozilla Public License, v. 2.0.
- Outlook Message Parser. Copyright (C) 2017 Benny Bottema. Apache License 2.0.
- ez-vcard. Copyright (c) 2012-2021, Michael Angstadt. All rights reserved. FreeBSD License.
- Arimo font. By Steve Matteson. Apache License 2.0.
- Tinos font. By Steve Matteson. Apache License 2.0.
- Cousine font. By Steve Matteson. Apache License 2.0.
- Lato font. By Łukasz Dziedzic. Apache License 2.0.
- Caladea font. By Andrés Torresi, Carolina Giovanolli. Apache License 2.0.
- Apache Commons Compress. Copyright © 2002-2021 The Apache Software Foundation. All Rights Reserved. Apache License 2.0.
- LeakCanary. Copyright 2015 Square, Inc. Apache License 2.0.
- IPAddress. Copyright 2016-2018 Sean C Foley. Apache License 2.0.
- MaterialDings. Copyright (c) 2018 Accusoft Corporation. MIT License.
- Send. Mozilla Public License 2.0.
- DetectHtml. The MIT License.
- Liberation Sans Narrow font. Copyright (C) 1989, 1991 Free Software Foundation, Inc. GNU General Public License version 2 with exceptions.
- Prism. Copyright (c) 2012 Lea Verou. MIT LICENSE.
- Jayway JsonPath. Copyright 2011 the original author or authors. Apache License 2.0.
- tinylog 2. Copyright 2016-2023 Martin Winandy. Apache License 2.0.
- Brave Lists. Mozilla Public License Version 2.0.
- AG Filters Registry. GNU Lesser General Public License Version 3.
- Certificate transparency for Android and JVM. Copyright 2023 Appmattus Limited. Apache License 2.0.
- ZXing. Copyright (C) 2014 ZXing authors. Apache License 2.0.
- commonmark-java. Copyright (c) 2015, Atlassian Pty Ltd. All rights reserved. BSD-2-Clause license.
- flexmark-java. Copyright (c) 2016-2018, Vladimir Schneider. All rights reserved. BSD-2-Clause license.
- EvalEx. Copyright 2012-2022 Udo Klimaschewski. Apache License 2.0.
- Android Image Cropper. Copyright 2016, Arthur Teplitzki, 2013, Edmodo, Inc. Apache License 2.0.