One of the most troublesome issues that QuickBooks users face is QuickBooks email invoices not working. It’s important to send the counterparty an invoice on time for several reasons. Therefore, it causes serious problems for users when your invoicing department is disrupted by the application’s inability to process invoices. This comprehensive troubleshooting guide explains how to resolve issues when you are unable to send your invoices to the intended recipients.
While facing this issue, some error messages appear on your screen, such as:
“QuickBooks is unable to send invoices.”
“Error: QuickBooks is unable to send your email to Outlook.”
For comprehensive guidance on resolving QuickBooks’ inability to send invoices or its inability to send invoices via email, go through this blog.
Facing technical inconveniences when trying the QuickBooks can’t send invoices issue is normal. No worries, just seek professional help. Dial +1(800) 780-3064 to speak with a certified expert.
Possible Reasons Why QuickBooks Cannot Send Invoices?
QuickBooks email invoices not working could be caused by a number of things. To assist you in understanding what might be the cause for you, the causes are listed below.
- Email preferences in QuickBooks or the system may be set up incorrectly.
- Poor or unstable internet connectivity
- Firewall or antivirus software may be preventing QuickBooks from sending email services
- Utilizing an outdated version of QuickBooks software
- Damaged or corrupted company file
- Missing or damaged mapi32.dll file
- Incorrect installation of the Outlook application
- Interruption due to third-party applications running in the background
Let’s move on to potential solutions once you have a better understanding of the causes of the issue in your system.
7 DIY Troubleshooting Methods to Resolve the QuickBooks Email Invoices Not Working Issue
In this section, we have listed proven troubleshooting methods to help you resolve the issue of QuickBooks email invoices not working on your computer.
Method 1: Edit the Email Preferences in the QuickBooks Application
Here are the instructions to change your QuickBooks email preferences:
- Open the QBDT program
- Go to the Edit option
- Select Preferences by tapping on it
- Click on My Preferences from the left
- Press the Edit button
- From the options, select Default
- Make sure the server name and the email provider name match
- Now, update Outlook to intuit.smtp.mail.outlook.com by changing the server name to smtp.mail.outlook.com
- Verify if the Use Enhanced Security option is turned on
Make sure the password you use for your webmail is correct. Run a test to see if the fault has been fixed by:
- Open the File menu, then select the Close Company option
- Now, in the No Company Open window, tap the Open a Sample File option
- To open the sample company file, choose it
However, if the issue still persists, follow the next possible method.
Method 2: Use the QuickBooks Install Diagnostic Tool
You should install the QuickBooks Tool Hub on your computer before you can use the Install Diagnostic Tool. After that, carry out the steps below to run it.
- Go to the QuickBooks Tool Hub
- Select the Installation Issues tab
- Next, to launch the QuickBooks Install Diagnostic Tool, tap it
Allow the tool to run and resolve your system issue. Try the next troubleshooting technique if this one doesn’t resolve your problem.
Method 3: Check Whether QuickBooks is Running as an Administrator
Make sure QB isn’t operating as an administrator. If so, here’s how to resolve it:
- Right-click on the QuickBooks icon, then select Properties
- Now, choose the Compatibility tab
- Here, unmark the Run this software as administrator option
- Select the Show Settings for All Users option if the section is grayed out, and then tap on OK
After carrying out the above steps, restart the program to verify whether the issue is resolved. However, if the QuickBooks email invoices not working issue still persists, try the next method.
Method 4: Repair Your MAPI32.dll File
The actions you must take to resolve the problem if it is associated with the mapi32.dll are outlined below:
- Start by restarting your computer
- Open the Microsoft Word program and create a new document
- Go to the File menu, then select the Email as PDF attachment by tapping on it
If you are unable to send an email in QuickBooks and it is sent as a Microsoft Word file. Take the actions listed below:
- Close every third-party software running in the background
- Launch the Windows Start menu and use the search bar to find File Explorer to open it
- In the search tab, enter C:\Windows\System32 to locate and open the Fixmapi.exe file
- To begin the repair, adhere to the on-screen instructions
- Once the repair is complete, restart your system
Now, open the QB application to check whether the QuickBooks email invoices not working issue is resolved. If QuickBooks email invoices not working still persists, follow the next method.
Method 5: Reconfigure the Server Information for Comcast
The server details for your Comcast email may help you resolve this problem. For that, carry out the steps listed below:
- Open the QuickBooks program, then choose the Edit tab
- Select the Preferences menu item
- Next, choose the Send Forms option
- Select the My Preferences tab by tapping
- Hover your cursor over WebMail from the Send email menu
- After selecting Add, input your email address
- Select the Other option as your email provider
- Enter 587 as the port and smtp.comcast.net as the server name, and click on OK
This will help you resolve the QuickBooks email invoices not working issue. However, if it doesn’t work, follow the next method.
Method 6: Clean Install QuickBooks Desktop
By removing any leftover QuickBooks files that might impede a clean installation, this method helps. To accomplish this, carefully follow the steps listed below to delete the QuickBooks Installation file.
- After uninstalling QuickBooks Desktop from your computer once more, follow the necessary instructions to ensure that hidden files are visible
- Now choose the Windows Start menu, enter “File Explorer” into the search tab, and open File Explorer
- Find and open the QuickBooks company file folder, then open it. Usually called QuickBooks, this folder is located in one of the following paths:
- C:\ProgramData\Intuit\QuickBooks (year)
- C:\Users\(current user)\AppData\Local\Intuit\QuickBooks (year)
- C:\Program Files\Intuit\QuickBooks (year)
- For 64-bit systems: C:\Program Files (x86)\Intuit\QuickBooks (year)
- After locating the folder, right-click on it and choose Rename
- Put “old” at the end of the folder name to prevent QuickBooks from reusing it when you reinstall
- Lastly, reinstall your QB application
Once done, check whether the QuickBooks unable to send email invoice issue is gone. However, if it still persists, follow the next method.
Method 7: Create Firewall Exception for QuickBooks Desktop
By following the instructions below in QuickBooks, you can quickly create exceptions for your Windows firewall. Add a firewall port exemption for QuickBooks first.
- Go to the Start menu and look for Windows Firewall in the search bar
- Now, select Advanced Settings
- Right-click the Inbound Rules, then select the New Rule option
- After selecting the Port, select Next
- Make sure the TCP option is chosen
- Enter the particular ports required for the QuickBooks year version under the local port section:
- QB Desktop 2020 and later: 8019, XXXXX
- QB Desktop 2019: 8019, XXXXX
- QB Desktop 2018: 8019, 56728, 55378-55382
- QB Desktop 2017: 8019, 56727, 55373-55377
- Select Next after entering the port number
- Select Allow the connection option, then press Next
- After making sure every profile is chosen, tap Next again
- Create a new rule and name it “QBPorts(years)” and hit Finish
Now, create a Windows Firewall exception for the QuickBooks program by following the instructions:
- Launch the Start menu in Windows, then open Windows Firewall by typing it into the search bar
- Go to Advanced Settings, then right-click Inbound Rules
- Next, choose the New Rule
- After choosing the Program, click Next
- Select This Program Path, then click on Browse
Locate and choose an executable file from the table below:
- Select Next, choose Allow the Connection
- Then, choose Next, then ensure that all profiles are marked
- Tap on Next and create a rule, then give it a name like QBFirewallException(name.exe)
The following table is offered to assist with the exceptions when completing the stages for outbound rules:
| Executable Files | Location |
| AutoBackupExe.exe | C:\Program Files\Intuit\QUICKBOOKS YEAR |
| Dbmlsync.exe | C:\Program Files\Intuit\QUICKBOOKS YEAR |
| DBManagerExe.exe | C:\Program Files\Intuit\QUICKBOOKS YEAR |
| FileManagement.exe | C:\Program Files\Intuit\QUICKBOOKS YEAR |
| FileMovementExe.exe | C:\Program Files\Intuit\QUICKBOOKS YEAR |
| QuickBooksMessaging.exe | C:\Program Files\Intuit\QUICKBOOKS YEAR |
| QBW32.exe | C:\Program Files\Intuit\QUICKBOOKS YEAR |
| QBDBMgrN.exe | C:\Program Files\Intuit\QUICKBOOKS YEAR |
| QBServerUtilityMgr.exe | C:\Program Files\Common Files\Intuit\QuickBooks |
| QBCFMonitorService.exe | C:\Program Files\Common Files\Intuit\QuickBooks |
| QBLaunch.exe | C:\Program Files\Common Files\Intuit\QuickBooks |
| QBUpdate.exe | C:\Program Files\Common Files\Intuit\QuickBooks\QBUpdate |
| IntuitSyncManager.exe | C:\Program Files\Common Files\Intuit\Sync |
| OnlineBackup.exe | C:\Program Files\QuickBooks Online Backup |
If your actions are being blocked by the firewall, you can use these methods to establish an exception for the QBDT application.
A Quick Overview of the QuickBooks Email Invoices Not Working Issue
The table below provides a quick overview of the QuickBooks email invoices issue, highlighting key details such as the possible reasons and recommended fixes.
| Issue description | The QuickBooks email not sending issue occurs when users cannot send invoices directly from QB Desktop. |
| Possible reasons | Windows firewall settings, antivirus software blocking operations, using an outdated QB version, or misconfigured email settings on your computer. |
| Tested fixes | Modify email preferences in QB Desktop, run QB as an administrator, clean install the QB application, send a test email in MS Word, and configure firewall settings. |
Conclusion
This was all you needed to know about the QuickBooks email invoices not working issue. We have discussed the key causes of this problem. To ensure the email invoice is functioning correctly, we have also included troubleshooting steps. However, if you are experiencing any technical issues while resolving email-related problems, you must seek professional help. For that, call +1(800) 780-3064 and speak with a certified QB expert.
Frequently Asked Questions (FAQs)
A. Here are the methods to check the QB email setup:
a. Open the QuickBooks program
b. Select the Edit option
c. Next, press the Preferences tab
d. Select the Send Forms
A. Here’s how to enable QB’s email invoices feature:
a. Select the Main menu
b. Choose the Email option from the dropdown menu
c. Choose the Invoice option
d. Look for the notification regarding the invoice
e. When you’re ready, tap Send
A. An issue with email settings, the internet connection, or program configuration is typically the cause of QuickBooks’ inability to send invoices. Incorrect email settings, outdated QB versions, or firewall or antivirus software blocking outgoing emails are among the possible causes of the issue.

Gabby Taylor, combines financial expertise with literary prowess. With over a decade in finance, she crafts insightful narratives on navigating fiscal complexities
