Hi Team,

I am encountering a persistent issue with the Mail Server Settings in ServiceDesk Plus. We are using Office 365 with OAuth authentication, and it has stopped fetching tickets suddenly.

Details of the problem:

• Error Message: "Authentication Failed. Please check the credentials."

• Behavior: When clicking "Save" or "Test Connection" in the Mail Server Settings, the popup for OAuth shows success, but the application log still records an authentication error.

• Recent Changes: No changes were made to the Azure App registration or the ServiceDesk Plus configurations recently.

Environment Info:

• ServiceDesk Plus Build: (Điền số Build của bạn, ví dụ: 14500)

• Database: (Ví dụ: PostgreSQL / MSSQL)

• Installation: (Ví dụ: On-premise / Windows Server 2019)

Steps I’ve already tried:

1. Regenerated the Client Secret in Azure Portal.

2. Re-authorized the Mailbox within ServiceDesk Plus.

3. Restarted the ServiceDesk Plus service.

I have attached the logs and a screenshot of the error for your reference. Could you please check if this is a known bug in this build or if there is a specific configuration fix?

Looking forward to your help.

Tags: #EmailFetching #OAuth #geometry dash world #ServiceDeskPlus #TechnicalIssue