Requirements for Using WebMail 2.0

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For Web Hosting customers with a 1&1 IONOS email address

Please note the following requirements for using WebMail:


1&1 IONOS WebMail is available in:


  • Web Hosting packages
  • eShop packages
  • Server packages
  • MyWebsite packages

Web Browser

  • Mozilla Firefox (current and all previous versions)
  • Microsoft Edge or Internet Explorer 8, 9, 10 and 11
  • Google Chrome (current and all previous versions)
  • Apple Safari 5.1/6.0 or later

Please note: In general, you can also use WebMail with other browsers or newer browsers in beta versions. However, we do not support them. We therefore recommend that you use one of the above-mentioned browsers in the listed versions if problems occur during WebMail use.

Screen Resolution

For optimal display of WebMail, a minimum screen resolution of 1024 x 768 pixels is required.