Microsoft 365 Configuration
Instructions
Replace user@domain.com and mail.domain.com with the appropriate mail and domain information.
Step 1
Open Outlook and select "File" in top menu.
Select "Account Settings" icon and click on "Account Settings."
Step 2

Make sure the "Mail" tab is selected and the email account is selected then click "Repair."
Step 3

Make sure to select "Let me repair my account manually" and click "Repair."
Step 4

Enter your name, your account name, reply-to address and organization then select "Next."
Step 5

Enter your username, password, server and Port 993.
Select SSL/TLS encryption method then select "Next."
Step 6

Enter your mail server
Enter port 465
Encrypt with SSL/TLS
Select "My outgoing server requires authentication"
Select "Use the same settings as your incoming mail server."