I desperately need help with emailing invoices from Quickbooks. I have been doing it with no problem for years, and suddenly last week when I tried to email a customer their invoice, after I was prompted to input my password, a notification popped up saying "Quickbooks is unable to send your emails." I have tried troubleshooting with no success. I ensured that my password was correct, I updated quickbooks, I checked in send forms to make sure my email settings were correct, and i uninstalled/reinstalled quickbooks. Please help! If I can't email invoices I can't bill the majority of my customers.