Enable or disable spell check while writing messages Menu location: Tools > Options > Composition > Spelling Select the option and click on OK. When you open a new Write message and type the email content, misspelt words will be underlined in red. Click on 'Spelling'. A small 'Check Spelling' window opens. The misspelled word will be shown at the top. Below will be an option to 'Replace with', if this is the one you want click on 'Replace' or 'Replace all' button as appropriate. Other suggestions will be listed, you can highlight the one you desire to change the choice. If the word is correct then click on 'Ignore' or 'Ignore all' as appropriate. If the word is correct, but a special spelling not normally found in a dictionary, then you can add it to the 'Personal Dictionary' by clicking on 'Add Word' button. You can view the words in your 'Personal dictionary' by clicking on 'Edit' button. There is a choice to 'Add' words or 'Replace' a highlighted word or 'Remove' any highlighted word. Click on 'Close', to close the Personal dictionary window. Under 'Language', you can select which dictionary you wish to use. If you want to add another dictionary, click on the drop down selection and choose 'Add more dictionaries'. A new 'Add-ons' tab opens showing a list of availale dictionaries and Language Packs which you can download. Click on 'Close', to close the 'Check spelling' window.