Spam Control & Reporting Functionality

What exactly (honeypots, IP checks, human-friendly questions, etc.) does JotForm do to help curb spam?

What kind of reporting functionality (submissions, deliveries, device type, sender info, etc.) does JotForm provide?

There are several different checks that can be added to forms depending on your needs.  Here is how to limit submissions to prevent spam:

https://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form

It is also possible to add a few different types of Captcha fields:

https://www.jotform.com/help/205-How-to-add-a-CAPTCHA-field

Submissions are stored directly in your JotForm account:

https://www.jotform.com/help/269-How-to-view-Submissions

You can also capture the user agent string along with your form submissions:

https://widgets.jotform.com/widget/get_user_agent