Set the linked account from the available Mail Accounts.
Set the Default reporter to any valid user as a fallback, when the user can not be determined by the From address. By default, there is no fallback user and processing will be aborted if no user can be found by the From address.
If fallback to default reporter is set, Email This Issue retries executing the action with the selected default reporter if the execution with the current reporter fails due to a permission error.
Important: Although it is not an explicit setting in the mail accounts, only those emails are processed by the mail handler that are "unread" in the time of receiving the original email.
After general settings are configured, switch to the Rules and actions tab to set up the mail handler actions that should be executed during processing the incoming mail.