Hi Kiwi,

If you are unable to spell check text that has been typed within an email signature in Outlook 2010, follow these steps to enable the spell checker function.

1. Within the email, select “Review” on the menu bar.
2. Highlight the signature and text.
3. On the ribbon bar underneath the Language tab, click the Language arrow then select “Set Proofing Language”.
4. Ensure that the ‘Do Not Check Spelling or Grammar’ box is not ticked – this can be found at the bottom of the Language box.

Spell check should now be enabled.