For WHMCS,Resource Mailer
Clients regularly go up to their account limits, and wonder why their account stops working when they do. Often the only problem is, they don't know what they have done, and how they can resolve the problem of using all of their resources.
Resource Mailer will let your clients know when they reach certain thresholds on both their disk space and bandwidth limits (or either). You can decide who will receive the emails, when they receive the emails and with fine grained control, who is left alone. Resource Mailer is extremely configurable.Learn more