If you’re unable to send email invoices in QuickBooks Desktop, you’re not alone. This is a common issue faced by users due to email configuration errors, damaged program files, incorrect preferences, or security software conflicts. When invoices fail to send, it can delay payments and disrupt cash flow. The good news is—this issue is fixable with the right steps.
If you need immediate help at any point, call QuickBooks Desktop Support at 1-(800)-270-9342 for expert assistance.
Common Symptoms of the Issue
You may experience one or more of the following:
QuickBooks freezes or crashes when sending invoices
Error message: “QuickBooks is unable to send your emails”
Outlook or webmail does not open from QuickBooks
Invoices stay in the Outbox and never send
No error appears, but emails are not delivered
For quick resolution, you can also contact support at 1-(800)-270-9342.
Why QuickBooks Desktop Can’t Send Email Invoices
Several factors can cause this issue, including:
Incorrect email preferences in QuickBooks
Outdated QuickBooks Desktop version
MAPI or Outlook integration problems
Antivirus or firewall blocking QuickBooks
Damaged QuickBooks program files
Windows user permission issues
Step-by-Step Fixes to Resolve the Issue
Step 1: Check Email Preferences in QuickBooks
Open QuickBooks Desktop
Go to Edit > Preferences
Select Send Forms
Choose your email option (Outlook, Webmail, or QuickBooks Email)
Click OK and try sending a test invoice
If the issue persists, call 1-(800)-270-9342.
Step 2: Update QuickBooks Desktop to the Latest Version
Go to Help > Update QuickBooks Desktop
Click Update Now
Restart QuickBooks after the update
An outdated version often causes email-related errors.
Step 3: Test Your Email Setup Outside QuickBooks
Try sending an email directly from Outlook or your webmail
If email doesn’t send, fix the email client issue first
Ensure Outlook is set as the default mail app
Step 4: Run QuickBooks as Administrator
Close QuickBooks
Right-click the QuickBooks icon
Select Run as Administrator
Send the invoice again
This resolves permission-related blocks.
Step 5: Temporarily Disable Antivirus / Firewall
Security software may block QuickBooks from accessing email services.
Temporarily disable antivirus/firewall
Send a test invoice
Re-enable security software and add QuickBooks as an exception
For guided help, dial 1-(800)-270-9342.
Step 6: Repair QuickBooks Desktop
Go to Control Panel > Programs and Features
Select QuickBooks Desktop
Click Uninstall/Change
Choose Repair
Restart your system
This fixes corrupted program components.
Alternative Options to Send Invoices
If email invoices still won’t send:
Save the invoice as a PDF
Send it manually via email
Use print or fax options if required for documentation
For fax-related assistance or configuration help, contact support at 1-(800)-270-9342.
When to Contact QuickBooks Support
You should contact support if:
None of the fixes work
Errors keep recurring
You suspect data or installation corruption
You need help configuring Outlook, webmail, or fax settings
QuickBooks Desktop Support Number: 1-(800)-270-9342
Why am I unable to send email invoices in QuickBooks Desktop?
Answer:
You may be unable to send email invoices in QuickBooks Desktop due to incorrect email preferences, outdated QuickBooks software, Outlook or webmail integration issues, firewall or antivirus blocking QuickBooks, or damaged program files. Updating QuickBooks and verifying email settings usually resolves the issue.
How do I fix QuickBooks Desktop not sending email invoices?
Answer:
To fix this issue, check Edit > Preferences > Send Forms, ensure the correct email option is selected, update QuickBooks Desktop, run the program as administrator, and verify your email client works outside QuickBooks. Repairing QuickBooks may also help.
Why does QuickBooks say “Unable to send your email” when invoicing?
Answer:
This error appears when QuickBooks cannot connect to your email service. Common causes include incorrect SMTP settings, Outlook not set as default mail app, security software blocking access, or a corrupted QuickBooks installation.
Can antivirus or firewall stop QuickBooks from sending invoices?
Answer:
Yes. Antivirus and firewall software can block QuickBooks from accessing email services. Temporarily disabling security software or adding QuickBooks as an exception often fixes the problem.
Does QuickBooks Desktop support Gmail or webmail for sending invoices?
Answer:
Yes, QuickBooks Desktop supports webmail services like Gmail and Yahoo if properly configured in Send Forms preferences. Incorrect ports or security settings can prevent invoices from sending.
Why are my QuickBooks invoices stuck in the Outbox?
Answer:
Invoices get stuck in the Outbox when email settings are incorrect, QuickBooks loses connection with Outlook/webmail, or when the program lacks proper Windows permissions.
What should I do if Outlook doesn’t open from QuickBooks?
Answer:
Ensure Outlook is installed, updated, and set as the default email application. Running both Outlook and QuickBooks as administrator often resolves this issue.
Will updating QuickBooks fix email invoice problems?
Answer:
Yes. Many email-related issues are caused by outdated QuickBooks versions. Installing the latest updates can fix compatibility and connectivity problems.
Can I send invoices manually if email fails in QuickBooks?
Answer:
Yes. You can save the invoice as a PDF and send it manually through your email client as a temporary workaround.
Who should I contact if QuickBooks Desktop still won’t send invoices?
Answer:
If none of the fixes work, you should contact QuickBooks Desktop Support for advanced troubleshooting and configuration assistance.