Basic Authentication was deprecated in September 2022, as mentioned in this announcement by Microsoft:
If you are using Hybrid Modern Authentication, generate the Tenant ID, Client ID, and Client Secret and configure them in the Microsoft Graph. Set up the settings in EasyPay and eportal as follows after getting the required information from your email server provider:
EasyPay
Go to EPE Control.
Click Modules and click Email.
Click Email Server Settings.
Log in to the database, enter the email server information and click Save.
ePortal
Log in ePortal as Admin.
Click Settings and select Email Configuration.,
Click Email Server, enter the required information, and click Save.
