Outlook Add-in Languages and Localization

Set-OutlookSignatures and the Benefactor Circle add-on work invisibly in the background. Employees simply find their signatures and out-of-office replies always up to date — without having to configure, maintain, or update them manually.

The Outlook add-in is the only component employees interact with directly, and its interface is localized for users around the world. It automatically follows each user's Outlook display language, with English as a fallback, while still allowing users to select a different language manually. More than 370 locales across over 80 base languages are supported.

The selected display language is more than an interface preference: it can be used by the custom rules engine to apply language-specific signatures, disclaimers, and notification messages. This helps organizations provide a consistent, locally appropriate Outlook experience across regions, platforms and devices.

Language support extends across regional variants and multiple writing systems. Full right-to-left (RTL) layouts are available for languages such as Arabic, Hebrew, Persian, and Urdu.

The catalogue below shows every supported locale together with its language and region, native name, and localized versions of the product's title, subtitle, and description.