I've been very puzzled with some email problems using mail().
I send emails through that..but users with a specific host ...(sourceforge.net) don't receive it.

I suspect its the headers.
But whats with the headers?
Other users receive it with no problem.

$headers = "From: Name of Script<$sender>\n";
$headers .= "X-Mailer: Name of Script\n";
$headers .= "bcc: $recipient\n";


I'm sending email via BCC so users can't view each other's email addresses.

Any help would be greatly appreciated. thanks