1&1 Mail

4.5
80.3K reviews
1M+
Downloads
Content rating
Everyone
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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
Aug 21, 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
71.2K reviews
Robin Herrick
August 14, 2025
This is generally a good app. On some emails the text is really small and you have to zoom in. it's when there are long footers. I often send an email and find it's stuck in my drafts folder. Sometimes the app needs closing and reopening to get it to do things like opening an email. I was hoping the recent update has solved the problems with this app but it seems to be as unreliable as ever. Constantly need to close and reopen.
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
Hannah Shaw
April 9, 2025
It used to be great but no longer displays notifications for new emails. I have gone through all the app settings and my phone settings multiple times to make sure that notifications are turned on, but I'm still not notified about new emails. I can only see new emails by opening the app and refreshing it.
3 people found this review helpful