While working with QuickBooks software, there can be times when QuickBooks is unable to send your emails to outlook. A file named as dll, which is generally damaged in nature, produce this error. There might be some damaged QuickBooks components which can lead to email error. To terminate QuickBooks Outlook Email Error you need to QuickBooks administrative to the non-administrative mode and check settings of QuickBooks Email Preferences. To know more about QuickBooks mailing error call our QuickBooks Support phone number 1-888-986-7735.