Desktop Quickbooks no longer sending invoice emails through Outlook

Hi MTL Moto Pro,

Welcome to the Community. QuickBooks Desktop is a flexible program that simplifies the way you manage your books. I'd be glad to help.

Based on what you've described, I feel you'd benefit more from contacting our support team outside of the community. They'll be able to point you in the right direction regarding sending invoice emails through Outlook. You can review this article to reach out to our support team.

Let me know if you have questions, I'll be happy to help.

I'm having the same issue no longer being able to send through Thunderbird - QB now wants your email server info and pw... 

Thanks for joining the thread, @AB_MT. One common cause of email issues in QuickBooks can be version compatibility.

To assist you further, is there a specific error message you're seeing? Knowing more details can help pinpoint the issue and provide the best solution.

In the meantime, if you're using the 64-bit version of Thunderbird, try switching to the 32-bit version and setting it as your default email client. If that doesn't work, uninstall Thunderbird and reinstall the latest version.

Should the problem persist, you can try resetting your email preferences in QuickBooks Desktop (QBDT). Here's how:

1. Go to Edit menu, then click Preferences.
2. Select Send Forms.
3. Under My Preferences tab, choose Thunderbird as your email option.
4. Once done, click OK.

Send a test email from QuickBooks. If you still see an error, toggle your preferences.

1. Go to the Edit menu and then Preferences.
2. Select Send Forms, then go to the My Preferences tab.
3. Choose Webmail, and then OK. This toggles your preference off.
4. Repeat the steps, return to the My Preferences tab and select Thunderbird, then click OK.
5. Close QuickBooks and any other open programs.
6. Restart your computer.

For further information on fixing email send errors, visit this article: How to fix "Error: QuickBooks is unable to send your email to Outlook". Although it references Outlook, the steps also work as a workaround for Thunderbird.

Should you have any other concerns, feel free to reply to this thread.

@AB_MT 

Which QB Desktop year version?