Hi Sean,
Indeed it sounds like PHP mail() is malfunctioning. Here is a simple test script you can upload and browse to to check if your server can properly send PHP mail:
<?php// config$domain = "example.com";$toaddr = "test@listmailpro.com";// end config$fromaddr = "mytest@$domain";$returnpath = "bounceme@$domain";// codeecho date("l, F jS g:ia T");echo "<br>testing mail() function..<br>sending mail.. ";if(mail($toaddr,'mailtest','mailtest',"From: \"Mytest\" <$fromaddr>\nReturn-path: <$returnpath>")) echo "mail <i>seems</i> to be sent ok - did you get it?<br>"; else "mail NOT sent ok!?<br>";?>
Set $domain to your ListMail domain and $toaddr to your test (remote) email address.
If you do not receive an email after browsing to the script please notify your web host and point them to the test script.
Regards