You likely came here because you are using a thirdparty build of FairEmail.
You likely came here because you are using a third-party build of FairEmail.
There is **only support** on the latest Play store version, the latest GitHub release and
the F-Droid build, but **only if** the version number of the F-Droid build is the same as the version number of the latest GitHub release.
There is **only support** for the latest Play Store version and the latest GitHub release because those are the releases that can be built and released at any time.
F-Droid builds irregularly, which can be problematic if there is an important update.
Therefore you are advised to switch to the GitHub release.
Therefore, you are advised to switch to the GitHub release.
F-Droid isn't as secure as you might think anyway, [see here](https://privsec.dev/posts/android/f-droid-security-issues/).
Note that developers have no control over F-Droid builds and the F-Droid infrastructure (apps, forums, etc.).
OAuth access is available only for Play Store and Github releases
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,
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,
often with the clause that the use of OAuth is exclusive.
Note that you'll need to uninstall the F-Droid build first before you can install a GitHub release
because Android refuses to install ("*App was not installed*") the same app with a different signature for security reasons.
because Android refuses to install ("*App was not installed*", etc.) the same app with a different signature for security reasons.
At the start of 2024, the Play Store app started to update all apps, including apps not installed via the Play Store.
Since the F-Droid build is signed by the F-Droid organization, which basically means the F-Droid build is another app, updating the F-Droid build will fail.
@ -4938,16 +4937,16 @@ Unfortunately, there is no way to resolve this.
Note that the GitHub version will automatically check for updates.
When desired, this can be turned off in the miscellaneous settings.
Please [see here](https://github.com/M66B/FairEmail/blob/master/README.md#downloads) for all download option
Please [see here](https://github.com/M66B/FairEmail/blob/master/README.md#downloads) for all download options
and [see here](#faq173) for the differences between the different release types.
If you have a problem with the F-Droid build, please check if there is a newer GitHub version first.
You can see the source of the app in *About* of the navigation menu (left side menu),
either *Play store*, *GitHub*, *F-Droid*, or *?* (for example in the case of a custom build).
either *Play Store*, *GitHub*, *F-Droid*, or *?* (for example, in the case of a custom build).
[IzzyOnDroid](https://apt.izzysoft.de/fdroid/) hosts the GitHub release of the app.
[Aurora Store](https://f-droid.org/packages/com.aurora.store/) hosts the Play store version of the app,
[Aurora Store](https://f-droid.org/packages/com.aurora.store/) hosts the Play Store version of the app,
even though the Aurora Store app was downloaded from F-Droid.
Please [see here](https://forum.f-droid.org/t/help-wanted-how-to-create-a-reproducible-build-fairemail/8860) why reproducible F-Droid builds are not an option.