I understand the importance of sending invoices seamlessly, Jgainok. Please know I'm committed to helping you resolve the crashing problem when you attempt to email invoices in QuickBooks Desktop (QBDT).

First off, we can run the Verify/Rebuild tool to detect system errors or damaged data and refresh the company file. Before performing this process, please create a backup copy of your company file so that if changes occur, you can restore and undo it easily.

Here's how to verify your company data:

1. Go to the File menu.
   
   
   
   
2. Click on Utilities.
3. Select Verify Data. 

Then, to rebuild the data:

1. On the top menu, choose File.
   
   
   
   
2. Select Utilities.
3. Click Rebuild Data.
4. Hit OK if you receive a prompt to back up your company file.
5. When you get the message that Rebuild has completed, select OK. 

For detailed steps, refer to this article: Verify and Rebuild Data in QuickBooks Desktop.

If the problem persists, I suggest using the QuickBooks Tool Hub. However, if you've already performed all the troubleshooting steps mentioned above, I recommend contacting our Live Support Team.

Moreover, I'll share this resource to help you record invoice payments from your clients: Invoice payment.

If you have additional questions about managing invoices in QBDT, add a reply to this thread. I want to ensure you can carry out your tasks in the software smoothly.