Office 365 User Email Settings. LusoAdmin What I found out for new tenants. Any email address from one of your Office 365 verified domains may be specified as the Email address.

7 rows Check out Give mailbox permissions to another user in Microsoft 365 - Admin Help for more. Now you can enter the email address of this user account and click on Authorize in the app settings. Click Account Settings and then click Delegate Access.
Enter the display and user name create the password and make sure the option Make this user change their password when they first sign in is not active.
Now you can enter the email address of this user account and click on Authorize in the app settings. Set the Port as Port 25. How to set up an application to send email using Office 365 Dear all I need some help on how to set up our messaging application to be able to send emails to both internal and external users. Enter your Microsoft 365 email address and password.