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About this app
BlitzMail is an Android app that allows you to set up your email account once and then use it to send emails or short notes to an address of your choice. This comes in handy when you need to send a lot of things via email, because you are in a low connectivity area (e.g. subway) and want to remember things to look at later.
It also works when you are offline. BlitzMail then queues your emails and allows you to send them later when you have connectivity again.
The SMTP password is stored encrypted with a built-in key and salted with your device ID. This is not fully secure, but should provide reasonable protection for your password.
Licensed under AGPL-3.0-or-later, by Torsten Grote.
What's New in v0.7.1
Imported from the F-Droid repository index.
Version history
May 30, 2019 · 2.7 MB · Android API 14–28 · code 14
Imported from the F-Droid repository index.
SHA-256 9c84aae9cba2be9d95dd836a151c6821ceddce5d148eb690c130006a13504b39
Oct 12, 2018 · 2.2 MB · Android API 14–28 · code 13
Imported from the F-Droid repository index.
SHA-256 34f1564a1e3641f140b2e7898c2d71789f7deaa1143ab772807dee7dab666a25
Jan 11, 2017 · 1.6 MB · Android API 11–25 · code 12
Imported from the F-Droid repository index.
SHA-256 4d4041948352d84ca52a5cc0bd6b02a8dd76271655760a0eb51a1d031f84b56f
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be de.grobox.blitzmail is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 0.7 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall BlitzMail first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of BlitzMail, and a listing is removed when the evidence for it stops holding up.
Get BlitzMail
Every source we list for de.grobox.blitzmail is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
9c84aae9cba2be9d95dd836a151c6821ceddce5d148eb690c130006a13504b39
Signing certificate
6f6f96462d719199f76d2c7886640edafd9ff6f565f202d175dbe9cab2791078
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.