Removes the email credentials for running jobs.
This method has no parameters.
If the method succeeds, the return value is S_OK. Otherwise, the return value is an error value.
Email credentials use the username and password of the email account as credentials for submitting jobs. To set the email credentials, use the IScheduler::SetEmailCredentials method.
This method was introduced in Windows HPC Server 2008 R2 Service Pack 4 (SP4) and is not supported in previous versions.