Hi,
This may be helpful to you
To change the language of your Samsung email app, you'll need to adjust the language settings for the entire device or the specific app itself. If you want to change the language for all apps, including email, navigate to your device's settings, then to System > Languages & Input > Languages and add your desired language. To change only the email app's language, go to Settings > General management > App languages, select the email app, and choose the language.
Changing the System Language (for all apps, including email):
Open Settings: Swipe up from the bottom of the screen and tap the Settings icon (gear icon).
Navigate to System: Scroll down and tap on "General management" or "System" (depending on your device's One UI version).
Access Languages: Tap on "Languages & Input" and then "Languages".
Add a Language: Tap "Add language" and select your desired language from the list.
Set as Default: Press and hold the four lines next to the new language and drag it to the top of the list to make it the default language.
Changing the Email App Language (if supported):
Open Settings: Swipe up from the bottom of the screen and tap the Settings icon.
Navigate to General Management: Scroll down and tap "General management" or "System".
Access App Languages: Tap on "App languages".
Select Email App: Choose your email app (e.g., Samsung Email, Gmail) from the list.
Choose Language: Select your desired language from the list.