Ticket Email import failure notification alerts

For the past two weeks whmcs stopped importing emails from the designated email account used for tickets. After looking at the ticket import log file all we saw was the last time a ticket was imported. The cron job still runs as expected with no errors. After looking at the email account we found all the emails were just sitting there.

We discovered the email account password had expired and was waiting for it to be reset. However, whmcs did not log any errors in the ticket import log. Is there an actual file log or are the results stored in the database?

Is there a way to account for such an issue with expired passwords?

Also, how can we get the system to send an email alert if the import has a failure?

Thanks.