Software & Apps MS Office Configure Long Lines to Wrap Automatically in Outlook Pick at which character Outlook will wrap sentences by Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated on May 27, 2020 MS Office Outlook Word Excel Powerpoint Tweet Share Email Long lines can be hard to read in emails, so it's always proper email etiquette to break the lines of your messages to something between 65 and 70 characters. Microsoft Outlook has a useful setting to set the line wrap to whatever number is needed. Here's how to adjust the character number at which a line break occurs in Outlook. Instructions in this article apply to Outlook 2019, Outlook 2016, Outlook 2013, Outlook 2010, and Outlook for Microsoft 365. Alexey Bezrodny/Getty Images How to Wrap Long Lines Automatically in Outlook When you wrap long lines of text, the Outlook email client automatically breaks sentences away from their current lines to start on a new line. This shortens the length of all outgoing emails and is similar to narrowing the margins of the writing space. Open Outlook. Go to File. Select Options. In Outlook Options, select Mail. Scroll to Message format. In Automatically wrap text at character, enter a number to indicate where you want Outlook to wrap text. Remember to try to keep it between 65 to 70 characters. Select OK to apply the changes and close the window. You may have to experiment with the number of characters to get your emails looking the way you want. If you find you need to change the number of characters, repeat the steps until you are satisfied.