<p>You likely came here because you are using a third party build of FairEmail.</p>
<p>There is <strong>only support</strong> on the latest Play store version, the latest GitHub release and the F-Droid build, but <strong>only if</strong> the version number of the F-Droid build is the same as the version number of the latest GitHub release.</p>
<p>F-Droid builds irregularly, which can be problematic when there is an important update. Therefore you are advised to switch to the GitHub release.</p>
<p>F-Droid builds irregularly, which can be problematic if there is an important update. Therefore you are advised to switch to the GitHub release.</p>
<p>Note that developers have no control over F-Droid builds and the F-Droid infrastructure (apps, forums, etc.).</p>
<p>OAuth access is available only for Play Store and Github releases because email providers permitted the use of OAuth for these releases only. The responsible for a release, for the F-Droid build this is the F-Droid organization, needs to ask for OAuth permissions, which mostly involves signing a contract with binding terms and conditions.</p>
<p>Note that you’ll need to uninstall the F-Droid build first before you can install a GitHub release because Android refuses to install (“<em>App was not installed</em>”) the same app with a different signature for security reasons.</p>