Let me paint a picture you probably know too well. It's 4:45 PM on a Friday. You just finished invoicing a major client. You hit "Send" to email that invoice through QuickBooks... and nothing happens. Or worse, you get a cryptic error: QuickBooks email not working, or that dreaded "Internet connection read error." Your heart sinks. The client needs that invoice by 5 PM to process payment. Now you're staring at the screen, the clock is ticking, an...