To find the server name, you can login OWA to check it.
Sign into office.com
Click Settings in the upper right-hand corner.
Click Mail from the Your app settings section on the right-hand side near the bottom of the screen. If you don’t see Mail, click on View all Outlook settings.
Expand Mail on the left-hand side under the Options menu.
Modern Authentication is enabled by default in Office 365. Modern Authentication in Office 365 is a combination of authentication and authorization methods. It’s more secure than the Basic Authentication method, which relied only on a username and password. There are some situations, you may want to enable basic Authentication.
There are Mutiple options to enabling basic authentication in Office 365.
Option 1: Enable the organization Basic Authentication from Office 365
Login the Microsoft 365 Admin Center
Expand Settings and click on Org Settings
3. Select Modern authentication
4. Under Allow access to basic authentication, check Authenticated SMTP.
5. Click on Save
Option 2: Enable the organization Basic Authentication using PowerShell
Run PowerShell as administrator.
Connect to Exchange Online PowerShell by running the following command:
In some cases, you may want to generate a Office 365 password. For example, Veeam, Symantec, scanner need to send email notification, but can’t do so because office 365 requires verification. This article shows you how to generate Office 365 password.
Login Office 365.
Click your image and then View account.
3. On the left pane, click on Security info.
4. Click on Add sign-in method.
5. In Add a method, select App password.
6. Enter the password.
7. Click on Next, it will generate an app password.
Situation: When purchasing or renewing Veeam backup license, you will be License Administrator who will manage the license and support. if other IT personals need to contact or open a case with Veeam support, you need to add them to Case Administrator. Here is how to do so.
Login my.veeam.com as License Administrator.
Click on Support>Case Administrators.
3. Click on Add Administrator.
4. Enter the IT personals’ email addresses. Then Click on Next.
5. Under Create new Case administrator, select Support ID
Situation: The client would like to give their helpdesk administrative permissions. Here is how to do so.
From the director select the gear icon in the top left. Expand administrative Permissions and select Administrators. Select New then add the users extension number below and select system admin from the drop down menu, then click save. They will use the same username / password as their client. See Image below and let me know if you have any questions.