The only free plugin I can think of that supplies that functionality is the Form Mail NG plugin by Adaptavist: https://marketplace.atlassian.com/plugins/com.adaptavist.confluence.formMailNG
It seems that it is only compatible with 4.2.1 and lower, but this would be your best option assuming that you're not running the latest version of Confluence. However, you can also check the following list and get an idea of the commercial plugins available for creating forms in Confluence, but please ensure that you check the version compatibility to make sure the plugins you install/purchase are compatible with your version of Confluence: https://marketplace.atlassian.com/search?application=confluence&q=form
All the best,
Hi my Community friends! For those who don't know me, I'm a product marketer on the Confluence Cloud team - nice to meet you! For those of you who do, you know that I've been all up in your Co...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs