When you click a word, a small shortcut menu will appear.When you see a word with a dashed, red underline, hold down the Control key, and then click on the word.Outlook uses a dashed, red underline to indicate possible spelling errors. You can also check spelling at any time by using the Spelling button.Ĭheck spelling automatically as you type:īy default, Outlook checks for spelling errors as you type. Outlook 2016 for Mac does not have this option instead it checks for spelling errors as you type. In Outlook for Windows, there is an option to always check spelling before sending an e-mail message.