Troubleshooting Tip: Getting error 'Could Not Send Email' from FortiClient

[mithing]

Description	This article describes how to resolve the error 'Could not Send Email'. Your device could not send Email. Please check Email configuration and try again' when collecting the diagnostic log from FortiClient.
Scope	FortiClient (Full version).
Solution	1.  The error message: To resolve this, ensure signing in to the email using the built-in mailbox app in IOS. After signing into the mailbox, re-attempt to send the diagnostic again. It should prompt as follows:  Check and confirm that the diagnostic log has been sent to the mailbox.