Mail fetching - send email

Mail fetching - send email

Run into a problem, can't send emails from requests, can't send notifications.
Mail fetching is running. I'm still be able to receive and fetch mail, but can't send.

In Support - system log viewer, there's only one error:
Exception while trying to send notification for Request ID : 843 Mail sending failed.

what should I do?

                New to ADSelfService Plus?