Okay, I've updated the email.php file:
I now use this:
PHP Code:
if (!$userfile) $userfile="none";
if ($userfile!="none") Attach($userfile,$userfile_name);
That would work for BOTH types of servers - those that parse the $userfile to "" and those that parse it to "none".
For those with the above problems, clear your browser cache, download and upload the new email.php file, and try it. Should work.