If you see the message QuickBooks is unable to send email or Outlook not resonding in QuickBooks, you don’t have to get worried. Usually, it's just a setting problem. You must complete each step in order to send emails from QuickBooks. Please update to the latest Microsoft Office 365 release if you have login problems with Office 365.

Step 1: Edit your admin privileges

Verify that QuickBooks is not set to run as an administrator by default.

• You have to close QuickBooks Desktop.
• Then you have to the Windows Start button.
• Search for QuickBooks there, right-click the QuickBooks icon and choose Open file location.
• Right-click the QuickBooks.exe file in the folder and you have to click on Properties.
• Now you have to select the Compatibility tab.
• Uncheck the box next to Run this software as Administrator.
• You have to select Show Settings for All Users if the option is grayed out. The choice is now open as a result.
• Select Apply, then click OK.

You have to send a test email or transaction after opening QuickBooks.

Step 2: Edit your email preferences in QuickBooks

• Select Preferences from the Edit menu in QuickBooks. Before continuing, open and log in to Microsoft Outlook if you use it with Microsoft Exchange Server.
• From the menu, choose Send Forms, after that, select the My Preferences tab.
• Choose Outlook as your email option.
• Then you have to select OK.

From QuickBooks, send a test email. Toggle your preferences if you still encounter a problem.

• You have to select the Edit menu and then you have to select Preferences.
• From the menu, choose Send Forms. After that, select the My Preferences tab.
• Click OK after choosing QuickBooks E-mail or Webmail. This turns off your preference.
• Repeat the procedure. Select Outlook on the My Preferences tab by returning there. Select OK next.
• Close QuickBooks and all other open programs
• Then restart your computer.

Send a practice transaction or email after opening QuickBooks. Proceed to Step 3 if you continue to see a mistake.

Step 3: Check your Internet Explorer email preferences

QuickBooks runs online services in the background using Internet Explorer. There might be a need to reset your email preferences.

• Shut down QuickBooks.
• Then open Internet Explorer.
• Choose Tools, then Settings, and finally Internet Settings.
• Choosing the Programs tab. Select Set Programs after that.
• Choosing Set your default programs will do. Then decide which email provider to use.
• Select Apply, then click OK.
• Then you have to close Internet Explorer.

Step 4: Repair your MAPI32.dll

This step may be difficult. If you have experience using a computer, continue with the steps below. Otherwise, get in touch with an IT expert for assistance. To start, you have to follow the steps that are mentioned below.

• You have to restart your computer.
• Open Word on your computer and start a new document.
• You have to select the File menu, then click on Send and then select Email as PDF Attachment.

If you can send emails from Word but not from QuickBooks, take the following steps to fix MAPI32.dll: