Outlook 2003 spell checker in multiple countries

[dbutch1976]

I’m using Word as my email editor in Outlook 2003, with red underlining spell
check turned on. The spell check works correctly on mails I originate, but
when I reply to mails originating in the US, it spell checks my reply using
the US dictionary – not the UK dictionary I have set in my Word preferences.
Does anyone know if there’s a way to get Word to check my reply using the UK
dictionary?

 

[Aligator]

Set UK as default language and disable automatic language detection

 

[dbutch1976]

Sorry for needing to be spoon-fed, but where can I find the disable automatic
language detection tick box? Is this an option within Outlook or Office 2003
tools?