An error occured while using SSL configuration for endpoint 0.0.0.0:444

Issue: You are receiving continous error in system logs with even id:15021. Exchange Server application is installed on server.

Log Name: System
Source: Microsoft-Windows-HttpEvent
Date: 11/12/2018 2:12:58 PM
Event ID: 15021
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: EX01.domain.com
Description:
An error occurred while using SSL configuration for endpoint 0.0.0.0:444. The error status code is contained within the returned data.

Solution:

• Open IIS application, Navigate to Server Name > Sites > Exchange Back End.
• Click on Exchange Back End then click on Bindings on right actions pane.
• Select https type with port 444, Click Edit
• There is no certificate, Select certificate and click Ok
• Go back to system logs and you will see no more errors for this even id 15021.
• “SSL Certificate Settings created by an admin process for endpoint : 0.0.0.0:444 .”