QuickBooks outlook email not working is one more widespread issue than any in QuickBooks, and it mostly occurs when you are sending Emails through Outlook and all running processes freeze. To mend such email error, follow the below-listed solutions steps:
* Open the QB desktop application as usual.
* Click on the edit menu tab.
* After that, in the My preferences tab, select the Email to send option and set Outlook as the primary application.
* Click ok.
I believe that changing email preferences may work for you to resolve QuickBooks won't email invoices issue, and in case you are not still able to figure out it, Then place a call at 800-579-9430.