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This article is tagged with:AndroidiOSWebmailSmartphone

How do I install the Posteo web app?

With the Posteo web app, you can easily use Posteo on your smartphone, tablet or PC. Once installed, you will find the Posteo icon on your home screen or, for example, in the Windows taskbar. If desired, your login information can also be automatically filled in.

Special note: With auto dark mode, Posteo will always use the dark mode settings of your device upon request.

In this help article, you will learn how to install the Posteo web app on your device.

Contents

Select the device on which you would like to install the Posteo web app:

How to install the Posteo web app on an iPhone or iPad

First, on your iPhone or iPad, open the Safari browser. Afterwards, follow these steps:

  1. Open posteo.de.
  2. Tap on the share button.
  3. Select Add to Home Screen.
  4. Tap onAdd.
  • Open posteo.de and click on the "Share Button".
  • Select "Add to Home Screen".
  • Tapp on "Add".

That's it! The Posteo web app can now be found on your home screen. Tap on the Posteo logo to log in.

You will now find the Posteo web app on your Home Screen.

Tip: If you save your username and your password on your iOS device, your iPhone or iPad will automatically fill this out for you. You can also have the one-time code for two-factor authentication be entered automatically.

Tip: How to have your one-time passwords automatically entered when logging in

  1. Open your Posteo account settings and display your secret key there.
  2. Open iOS Settings.
  3. Tap on Passwords.
  4. Enter your iOS Passcode or unlock the feature using TouchID or FaceID.
  5. Search for Posteo and tap on the entry for your Posteo account.
    Tip: You can identify this by the Posteo icon.
  6. Select Set Up Verification Code... .
  7. Enter your secret key.
    You can copy the 16-character-long code from Posteo webmail or scan the QR code if you log in to your account with a different device.

That's it! You have set up two-factor authentication on your iOS device. When logging in via the web app, you can now have the one-time code filled in automatically:

  1. To do so, tap on the first textbox for entering one-time passwords and finally on Verification code für posteo.de.

Afterwards, you will automatically be forwarded to your mailbox.

How to install the Posteo web app on your Android device

You can install the web app on your Android device with various browsers. In the following steps, you will learn how to install the Posteo web app with Firefox for Android. You can read here about how to install the web app with other browsers.

  1. Open posteo.de in Firefox on your Android device.
  2. Tap in the bottom-right on the menu dots in Firefox.
  3. Tap Install.
  4. Tap Add Automatically.
  • Open posteo.de click on the three "menu dots" located in the bottom-right.
  • Tap on "Install".
  • Confirm with "Add Automatically".

That's it! You can now find the Posteo web app via the green Posteo logo on your home screen.Tap on the logo to log in.

You will now find the Posteo web app on your Home Screen.

Tip: If you save your login credentials in Firefox, Firefox will automatically fill in the login credentials for you.

How to have your login credentials be entered in automatically in Firefox

  1. Open the Posteo web app.
  2. Enter your login credentials.
  3. Click on Login now.

Firefox now offers to save the login credentials.

  1. Click on Save.
  • Enter your login credentialsand click on "Log in now".
  • Confirm by tapping "Save".

That's it! When logging in next time, Firefox will automatically enter your login credentials as soon as you click on login:

  • Open the web app and click on "Login".
  • The login credentials will automatically be entered in.

How to install the Posteo web app on your Windows PC

On your Windows PC with Windows 10 or Windows 11, you can install the Posteo web app with help from the Microsoft Edge browser. Edge is installed by default in Windows 10 und 11. First open Edge and follow these steps:

  1. Open posteo.de.
  2. In Edge, click on the three menu dots in the upper-right.
Oepn the Posteo website and click on the three "menu dots".
  1. Select Apps.
  2. Click on Install Posteo.
Select "Apps" and click on "Install Posteo".
  1. Give the app a name like Posteo and click on Install.
Confirm the installation by clicking on "Install".

The app is now installed. As a final step, you can decide where the app should be linked:

  1. Select Pin to taskbar to link the app in the Windows taskbar.
  2. Finally, click on Allow.
Select "Pin to taskbar" and finalize the installation by clicking "Allow".

That's it! From now on, you can open the Posteo web app via the Posteo icon on the taskbar.

Tip: If you save your username and your password in Edge, your browser will automatically fill in these details for you. Please note the security notice below.

How to have your login details entered in automatically

  1. Open the Posteo web app.
  2. Enter your login details.
  3. Click on Log in.
Enter your login credentials and click on "Log in".

Microsoft Edge will now offer to save the login details.

  1. Click on Got it.
Confirm saving your credentials by clicking "Got it".

That's it! When logging in next time, Edge will automatically enter the login details.

How to activate auto dark mode

With auto dark mode, Posteo always adjusts to the dark mode settings of your device. To activate auto dark mode, follow these steps:

  1. Open Settings.
  2. Open the Preferences tab.
  3. Click on User Interface.
Activate the option "Dark Mode".
  1. Activate the option Auto Dark Mode.
Dark modes in comparison.

That's it! Posteo will now automatically adjust based on the settings activated on your device. On the computer (left) dark mode is not activated. On the smartphone it is:

Activate the option "auto dark mode".

On most devices, you can then switch between a light and dark mode at any time with just one touch - or, for example, even arrange for an automatic mode change at sunrise and sunset.

Instructions for different devices can be found on the help pages of the manufacturers:

Security notice

Please make sure to use a secure lock code or a secure login password for your device if you save your login details on the device.

  • Always select a "unique" password for your email account that is exclusively used for your email account.
  • If necessary, deactivate all features that synchronise your passwords with a cloud service so that your login details are only saved on the device.

For optimal security, activate two-factor authentication and block access from external programs with additional email account protection for webmail users. This way, you can only access the account using the website or web app.

Frequently asked questions

Why can't I find the Posteo app in the App Store?

We have decided to not distribute the Posteo app on app stores but rather as a web app for all devices. The installation is nevertheless very simple and afterwards the Posteo logo appears as the app icon on your device - just like with other apps you are familiar with.

Updates are not necessary as the Posteo web app is automatically kept up-to-date by us.

How can I tell if I have already opened an email when using the web app on a smartphone or tablet?

You can tell if emails are unread by a colored dot in the email list.

How do I deleted an unread email using the web app on a smartphone?

Swipe from right to left over the email. On the right, a trash can symbol will appear. Tap on the trash can to delete the email.

Which display options are available when using a tablet?

There are two different views available to you when using a tablet. If you hold the tablet in portrait mode, your account will be displayed like on a smartphone. If you turn the device to landscape mode, you can have your account be displayed like on a computer.

Do I need to update a web app?

No. Web apps are automatically up-to-date.

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