Email Notifications Not Working
WS Form sends emails using a built-in function provided by WordPress called wp_mail. This is the same function used by other WordPress form plugins. Sending emails from WordPress can be made more reliable using these tips.
WS Form is designed to work with without requiring any additional software or configuration to WordPress.
File Uploads Appear as Code in Email
If your email is interpreting file uploads as jumble of letters (also know as Base64 encoding), you will need to disable inline images in emails.
403 Forbidden Error Message
A 403 Forbidden error message while editing your form may be the result of your hosting provider using mod_security.
If you have page caching enabled and it is incorrectly configured it might cause form submissions to fail when you are testing forms.