To check the spelling of your message, click Spell Check, on the toolbar.
Words that are unknown to the spell checker are highlighted.
Click on a highlighted word. A pop-up displays suggested corrections.
Select the correct word. The word is highlighted in another color.
To accept your changes and close the spell checker, click on Resume editing.
Before you close the spell checker you can change a corrected word back to the original spelling. Click on the highlighted word and select the initial spelling from the top of the pop-up.