Every individual will have a separate QuickBooks account and one can link their QuickBooks account with their Outlook account. When you have your Outlook account linked with your QuickBooks account you can easily share invoices with your vendors and customers. To send in the invoices first you have to send an email to your Outlook account. But when there is a problem the message will show up that QuickBooks is unable to send the email to Outlook.

Causes of "QuickBooks Is Unable to Send Your Email to Outlook"

Effect of "QuickBooks Is Unable to Send Email to Outlook" error message
This error message won't hamper your day to day accounting activity but if this error message prevails then you won't be able to send an invoice via your QuickBooks account.

How to resolve "QuickBooks Is Unable to Send Your Email to Outlook"

As there is more than one reason for "QuickBooks email is not working" error, the solutions will also be quite a few. We will be offering you with 4 solutions just to be sure.

Solution 1: Ensure that QuickBooks is not running as an administrator

Solution 2: Set your email preference correctly 
Solution 3: Ensure that your email preference is set correctly
Solution 4: Repair the MAPI32.dll