Use this article to configure your Outlook 2013, Outlook 2016, Outlook 2019 and Outlook 365 desktop application (not the web based version accessed through the Portal or at outlook.office365.com).
Step-by-step guide
When you change your password, you will also need to change your credentials that Outlook 2013, Outlook 2016, Outlook 2019 and Outlook 365 uses. You should get a prompt message like the one shown below that says Need Password when Outlook opens.
A password prompt will pop up.
Enter your SSD User Principal Name (UPN) is your SSD username @co.ssd.k12.mo.us. For example,
Enter your current SSD password (same password used for Portal, SSDLife, and Web Mail), it is ok to check the box so you're not prompted on each Outlook login-that is your choice depending on whether you share your computer with a generic login or not.
Click OK.
If you are unable to get signed back in using those instructions, please follow the instructions here to remove and re-add your email profile: Connecting to Office 365 - Outlook on a Windows PC not on SSDCO domain.