If you are having problems sending email from your site, this is an easy script to help you verify that php's mail() function is working.
On your site create a new file called phpmail.php and copy in the following contents:
$email = $_GET['email'];
$subject = "test";
$message = "test";
mail($email, $subject, $test);
Then go to email@example.com. Replace yoursite.com with your domain and firstname.lastname@example.org with any email address. You should receive an email at that address.
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