I have the User Forms modules intalled on a site. And it seems to work fine. Fill out the form and it shows the thank you message and it saved the submission in the database. The only problem is that its not sending out emails to the recipients added in the admin.

How do I begin to troubleshoot this?

Also check your mail logs on your server (if you have access to them) you might find something like its not going through because your server doesn't have mail setup correctly or you didn't define a from address on the host.

Is there a way to validate the form on the Admin so that when someone forgets to add a Subject or From it warns them.

Where do I add this code in the userforms module? Thanks for the help.