I am having trouble sending and viewing my volunteer list. I receive no email follow up from the volunteer page and I don't know what happens to the details entered into the form. When trying to use the SMTP option, I get the email was not sent warning.
Form created in our demo is created with Unyson contact form plugin. However, this plugin has problems with some servers and it is not sending data. You can use Contact from 7 which is the best contact form plugin for WordPress.
However, if you want to collect data and store it in database, you’ll need either CF7 extension or completely different plugin. CF7 extension can be found here: https://wordpress.org/plugins/flamingo/ and plugin is https://wordpress.org/plugins/participants-database/