1&1 Mail

4.5
80.9K reviews
1M+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Just enter your user details and you'll always have all your 1 & 1 emails mobile.

- Optimized for 1 & 1 mail
- Mobile access to your 1 & 1 mailbox of your internet contracts
- Easy handling

Have fun with the 1 & 1 Mail App wishes you

Your 1 & 1 team

Note: This app is not compatible with IONOS by 1 & 1 contracts.
Updated on
Oct 1, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity and Device or other IDs
This app may collect these data types
Personal info, Messages and 8 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.5
71.7K reviews
Steven Burnell
August 25, 2025
Sort out and fix the (now) confusing email account column that has stopped opening Inbox and folders directly under the active account and just stays at the bottom, looking like everything is shared in one place. Just as bad, is shifting the damn account you clicked so it jumps to the top. Stupid and confusing UI changes that are worse than before. Try testing it with several email accounts. I have loads for different reasons and you just made it harder to use.
Edgar Violent
August 21, 2025
The app used to work flawlessly until the last major update a couple days ago. Since then: no push notifications, sync problems, internal malfunctions. Re-installing the app and reconfiguring all necessary permissions and preferences (like background autostart, battery optimization) didn't change anything. This app is pretty much broken by now until the developers fix it. EDIT: Message to support from within the app gets REJECTED because of the automatically attached txt-file - ridiculous!
Tristan Summers
August 19, 2025
anytime writing a positive review of this must not have used it for more than a few weeks. Now the widget AND APP do not update. I don't think ionos pay anyone to provides vital web mail service reinstalling no longer helps. It might be nice if ionos pu something different goes wrong every week. It's a joke. a bit of effort into webmail which is still vital to lots of people. This is the only app for ionos mail that syncs sent mail across device so please keep it working.
16 people found this review helpful

What’s new

✔ Geschwindigkeits- und Stabilitätsverbesserungen

App support

About the developer
1&1 Telecommunication SE
apps@1und1.de
Elgendorfer Str. 57 56410 Montabaur Germany
+49 721 9600