hi guys,
i use function mail() from my website but it doesn't work as i expected.... emails (verification emails when people register) always go to BULK mail (Yahoo acc) at the first time, if i check to "Not Spam" the next time it will go to Inbox as i want... BUT, sure people don't have the will to find my emails in BULK and do like i did...
I have another email acc that checked by OE, emails from my site can't go to this acc either....
how can i do now?
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thanks for any comments?

I'm afraid this hasn't anything to do with the mail() function; but with either the content of your mail, or yahoo's spamfilter.

You can reduce the chance of them being marked as spam by making sure your headers are intact and accurate. The main reason mail() gets spammed is because they don't include headers.

thank guys, i did try to add more headers but the problem still appear... someone told me ab using smtp but i don't know how to do it... any hint?

If you get the headers right (and your server hasn't been flagged as a problem) then Hotmail and Yahoo should be OK. AOL can be trickier to get around, as their spam filters do seem a lot dummer than others.

This is off the top of my head, so no promises, but I think that the following should work OK for virtually all providers:

PHP Code:

function send_mail($fromname, $fromemail, $toname, $toemail, $subject, $message) {
      $headers .= "MIME-Version: 1.0\n";
      $headers .= "Content-type: text/plain; charset=iso-8859-1\n";
        $headers .= "X-Priority: 3\n";
       $headers .= "X-MSMail-Priority: Normal\n";
      $headers .= "X-Mailer: php\n";
      $headers .= "From: \"".$fromname."\" <".$fromemail.">\n";
      return(mail("\"".$toname."\" <".$toemail.">", $subject, $message, $headers));
    }