If you have a new password, if your email provider has asked you to change settings, or if you're having problems with sending and receiving email, you can change your email account settings through Mail in the Windows Control Panel, or from Outlook. Sometimes you need to make a change to your email account settings. Outlook for Microsoft 365 Outlook 2021 Outlook 2019 Outlook 2016 Outlook 2013 Outlook 2010 More.