You can upload as many or as few emails from your account as you’d like, and after they are uploaded, you can make changes. Here’s how you select which emails you’d like to upload:
In GMail and MyLDSMail, you can create labels to organize your email messages. Create a label for the emails you’d like to upload, and then add all of the sent and received messages you’d like in your finished book to that label. You’ll be able to upload only those emails you want to include. As you edit your book, you can change, add, or delete text, and include or delete any photos that were attached to your emails.