As Moab points to setting the default language is done in the mail options, but changing the language you're writing in when you write in more than one is not obvious to see:
- To set the default language:
First go to the mail options:
There install the language you want and set it as default (
- To change among languages once installed:
This can be more tricky, basically Windows Live Mail interprets the language you're writing in according to Windows language settings (!!!). So first you need to add more languages to Windows:
Go to the Control Panel and select to change keyboard languages:
Add the languages you use there, or the ones you'd like to have:
Accept the changes, you'll see that there is a language bar near the system tray.
That's what you have to use to make Windows Live Mail correct the language you want. I know WLMail developers made a wrong choice there because the force people to have that bar or at least to have more than one keyboard language set in the system in order to change the spell checker language, but as far as I know this is the only way.