A specific user is not able to receive task notifications

Issue

There is a specific user from Active Directory who is not able to receive email notifications for all tasks. 

1. Check the HostServer logs if there are any relevant error messages logged around the time the task is initiated. 

2. If there are no errors found, please check the Email column of the user's identity record if there is a trailing space in the email address e.g. 'user@k2test.com '.

You can run the query below on the K2 database: 

SELECT Email FROM [Identity].[Identity] 

WHERE FQN = '<FQN of the user>' 

If so, please reach out to your Active Directory admin/Infra team to check the e-mail address in the user's account in Active Directory and remove the trailing space if found to be the case. Afterwards, wait for the next time the user's identity record expires in the [Identity].[Identity] table and then confirm that the email address is now updated.