OK,
So when I have the email option set to wordpress the test email works, but when I when I use the form itself it says the email could not be sent.
When I set the email option to PHP I get the error Warning: mail() [function.mail]: SMTP server response: 451 See https://pobox.com/~djb/docs/smtplf.html. in D:\Hosting\6929673\html\wp-content\plugins\si-contact-form\si-contact-form-process.php on line 348
Could this be a hosting issue? Do I need to change something in the si-contact-form-process.php?
