Queue size notification?

Hi,

Is it possible to automate a notification that tells the admins if there is an issue with the queue? Perhaps if the queue reaches 100 emails, then a notification would be emailed to the admin group. Is this even a possibility? 

I attempted to look at pmx-reports-mailer or pmx-reports-mailer-v2 but I get the error "Unable to connect to report database".

Thanks!