Hi
I have created a sample AF that allows you to save and resume filling out the adaptive form. The form data is stored and retrieved from Azure storage.
Make sure you enter a valid e-mail address and then click on the Save Form button to get an e-mail to the form
I will be providing the sample assets soon, but in the meantime if you want to try the functionality you can access the form here
I will write an article on the topic in a few days. The article will have the code and other sample assets that can be deployed on your local AEM server.
BTW - Can you please tell me which version of AME Forms do you have?
This is for the cloud service, but will work for 6.5 as well