Technical Requirements for Mails Online

Infrastructural Requirements

Only the new Outlook client for Windows is supported for empower® Mails Online. The prerequisite for this is that WebView2 is installed. This is the case by default in the following Windows 11 versions:

  • Windows 11 + Office Version: ​Microsoft 365 Version >= 16.0.13530.20424​
  • Perpetual versions of Office on Windows​
    1. Windows 11 + Office 2021 + Retail & Volume-licensed​
    2. Windows 11 + Office 2019 + Retail only​
    3. Windows 11 + Office 2016 + Retail only

Windows 10 is also supported. A manual installation of WebView2 might be required.

Outlook & Windows Compatibility

Device TypePlatformDeviceOS versionBrowser
DesktopWindows*Windows (latest; 06/23: 11)Edge
DesktopWindows*Windows (latest; 06/23: 11)Chrome
DesktopMacOS*macOS (latest; 06/23: 13)Safari
TabletiPadOSiPadiPadOS (latest; 06/23: 16)Safari
MobiliOSiPhoneiOS (latest; 06/23: 16)(System Browser)
MobilAndroidGoogle PixelAndroid (latest; 06/23: 13)(System Browser)
GerätetypPlattformGerätOS VersionOffice
DesktopWindows*Windows (latest; 06/23: 11)

Microsoft 365 ver. >= 16.0.13628

(WebView2 required*)

DesktopWindows*Windows (latest; 06/23: 11)Office 2021 ("perpetual", Retail & Volume-licensed, (WebView2 required*)
DesktopWindows*Windows (latest; 06/23: 11)

Office 2016, 2019 ("perpetual", 

Retail only

(WebView2 required*)

DesktopmacOS*macOS (latest; 06/23: 13)

Microsoft 365 any version

(Safari with WKWebView)

*WebView2 is installed with Windows 11 or Office 2021. In other cases, it must be installed separately.

Supported Browsers & Outlook Clients

The following browsers are supported for empower® Mails Online: 

  • macOS: Safari
  • Windows: Google Chrome and Microsoft Edge

Please always use the latest version of your browser and install updates regularly.

The following Outlook clients are supported for empower® Mails Online (for using Mails in desktop app):

  • macOS: New Outlook Client from Version 16.38.506
  • Windows: New Outlook Client only (Classic Client not supported)*

*To ensure smooth parallel operation between Mails and Mails Online, the desktop client for Mails should not be used with the New Outlook Client

Requirements for empower® Users

Requirements for user/empower® environment:

  • At least one existing signature template in the empower® Mails library
  • Users must have read rights to at least one company with a location

Requirements for administrators:

  • Access to empower®  via empower® Mails Desktop Client for Windows

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