GMX - Mail & Cloud v1.21.21
APK · 3.4 MB · version code 121210 · Android 2.0+ · uploaded Sep 27, 2012
- Same certificate as v3.1.5, which matches Google Play Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v9.17.2, uploaded Oct 2, 2026 — about 14 years after this one.
- Size: this file is 3.4 MB; the latest is 51.1 MB (47.6 MB larger).
- Android: this version needs Android 2.0+; the latest needs Android 9+. Use this one if your device runs an older Android release.
- The latest version asks for 38 more permissions: Access adservices ad id, Access adservices attribution, Access adservices topics, Access media location, Camera, Run foreground services, Foreground service data sync, Show notifications….
- The latest version no longer asks for: Use credentials, Write secure settings, Write settings, Mail read attachment (custom), Mail remote control (custom).
File information
- Version
- v1.21.21 (121210)
- Uploaded
- Sep 27, 2012
- Size
- 3.4 MB
- Requires
- Android 2.0+ (API 5)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 4d55304ac41d5877235486cf56a77d3a
- Signing certificate (SHA-1)
- 50:D0:04:31:A2:C2:97:9E:99:47:7C:75:8C:46:7C:66:4E:28:1F:03
- Signed by
- CN=Danijel Nevistic, OU=WebProd, O=GMX GmbH, L=Muenchen, ST=Bayern, C=DE
- File name
- de-gmx-mobile-android-mail-121210-1151052-4d55304ac41d5877235486cf56a77d3a.apk
- Package
- de.gmx.mobile.android.mail
- Downloads (all versions)
- 10M+
- Age rating
- PEGI 3 · Everyone
Permissions (20)
This version requests 20 permissions, 5 of them sensitive.
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read contacts Sensitive android.permission.READ_CONTACTS
- Write contacts Sensitive android.permission.WRITE_CONTACTS
- Write settings Sensitive android.permission.WRITE_SETTINGS
- Authenticate accounts android.permission.AUTHENTICATE_ACCOUNTS
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Mail read attachment (custom) de.gmx.mobile.android.mail.permission.READ_ATTACHMENT
- Mail remote control (custom) de.gmx.mobile.android.mail.permission.REMOTE_CONTROL
- Manage accounts android.permission.MANAGE_ACCOUNTS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read owner data android.permission.READ_OWNER_DATA
- Read sync settings android.permission.READ_SYNC_SETTINGS
- Read sync stats android.permission.READ_SYNC_STATS
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Use credentials android.permission.USE_CREDENTIALS
- View network connections android.permission.ACCESS_NETWORK_STATE
- Write secure settings android.permission.WRITE_SECURE_SETTINGS
- Write sync settings android.permission.WRITE_SYNC_SETTINGS
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “GMX GmbH” This is the certificate of the Google Play version.
- Same certificate as v3.1.5, which matches Google Play v9.17.2 uses another certificate. v3.1.5 · v9.17.2
Store checks
- Developer signature under review Oct 2, 2026
- Antivirus scan passed Mar 31, 2014
- Uploaded by “willem1234” uploading since 2012
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (5 other versions compared). AAPKs doesn't scan files itself.
How to install GMX - Mail & Cloud on Android 2.0+
You'll need about 6.8 MB of free space.
- Download the APK — tap Download APK above (3.4 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap de-gmx-mobile-android-mail-121210-1151052-4d55304ac41d5877235486cf56a77d3a.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 4d55304ac41d5877235486cf56a77d3a. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open GMX - Mail & Cloud — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 2.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.