problem with mail() being filtered out by some isp

[ississ]

Hi, i run a website thats sends daily mails not in bulk but some isp block the mail comming in

i use mail() to achieve this and im using following script

   $send_html_messages = "no"; 
    $adminmail="[e-mail]"; //change to your adminmail 
   $useremail="[e-mail]"; //change to your own personal mail 
    $subject = "verification emaildelivery php mailer"; 
    $content = "small test to check "; 
        $xheaders = "From: " . $adminmail . " <" . $adminmail . ">\n"; 
        $xheaders .= "X-Sender: <" . $adminmail . ">\n"; 
        $xheaders .= "X-Mailer: PHP\n"; // mailer 
        $xheaders .= "X-Priority: 6\n"; // Urgent message! 
        if ($send_html_messages == "yes") { 
                $xheaders .= "Content-Type: text/html; charset=iso-8859-1\n"; // Mime type 
        } 
        mail("$useremail","$subject","$content",$xheaders); 

There no problem for people using gmail hotmail or there own domein mail
right now all my mails send to @ , @tenelet dont even get to there spamfilter.
This code worked fine in the past on these isp so i blamed my new host on that but they say its a programming error

annyway to get this working ?

grtz ississ

[sneakyimp]

This brief thread might be helpful. If your script successfully sends email to accounts at gmail or hotmail, you can tell "them" that your script works fine for other domains. Unfortunately, if your mails get caught in a spam filter it usually just gets dropped and getting someone to tell you why or where it went or what happened is most often impossible.

And different spam filters reject mail for different reasons. Some block because they don't like your headers, others require those headers for delivery.

Rather than using the PHP mail command, I would suggest creating an account at gmail or something and then using Pear::Mail in your script so that it sends mail via SMTP by connecting to gmail. Why do this? Because it is more or less exactly like you logging into gmail and sending a mail yourself. The downside? It can take some tweaks to get it working and the script will take a bit longer to connect to gmail, authenticate, and send the mail message.