I'm here to help you see those attached receipts from the client, jhgilmer.
The attachments are located in the Attach folder which is in the same location as your company file. When you send the accountant's copy, there's not a way to include this.
Your client can save a copy of those receipts. Simply navigate to the Company menu, then select Documents and then Doc Center. They can also click the paperclip item on the transaction or item, then right-click and select Save Copy to Desktop.
Once done, send the saved documents separately from the accountant's copy. The client can also provide you the entire Attachment Folder. Then, you need to restore the file on your system and re-attach the folder. Check out this link to learn more about this: QuickBooks Document Center: FAQs and common issues.
I'm adding this article to guide you with the workflow: Use the Accountant's Copy.
Stay in touch with me if there's anything else I can do with the accountant's copy. I'll be around to help whenever you need additional information.