Issue:
As of 16 September 2024, Microsoft no longer allows basic authentication for personal customers.  As a result, PCBE and PCSS can no longer connect to smtp-mail.outlook.com to send email notifications.

Please review Microsoft's announcement at the link below. 

Basic Authentication support will be removed from Exchange Online in September 2025.

Product Line:
PowerChute Business Edition
PowerChute Serial Shutdown

Environment:
All supported OS

Cause:
Informational

Solution:

The Microsoft article linked above provides three alternative solutions depending on whether you are only sending emails to recipients internal to your tenant, recipients internal and external to your tenant, or you have an Exchange Server on-premises.

Released for:Schneider Electric Nigeria