How to send Mail in PHP

[Christina]

Can anyone suggest me good method of sending emails that are going to email addresses taken from a database.

At present I am using this method -

PHP Code:
while($row=mysql_fetch_array($result))
{
$to = "$row[email]";
$subject = "Title";
$body = "Body Content";
$headers = "From: webmaster@borninblood.co.uk\r\n" .
"X-Mailer: php";
if (mail($to, $subject, $body, $headers)) {
echo("<p>Message sent!</p>");
} else {
echo("<p>Message delivery failed...</p>");
}
}
}

But when this my website goes into 403 error because the server assumes this is a security breech.

Please suggest me proper method.

[carl]

I use this method and have had no problems with it:

while($row=mysql_fetch_row($result)) {
$name=$row[0];
$email=$row[1];
$body="";
$headers=$head . "Content-type: text/html; charset=iso-8859-1" . $eol . $eol;
$body="<p> Dear " . $name . ",</p>";
$body.=$tb;
mail($email, $subject, $tbody, $headers);
echo("<br>sent to " . $email );
$body="";
}

I have left out the unsubscribe link for clarity.

The only single problem I think I might have is some people's newsletters get classed as spam by Yahoo .This isn't a general thing, but it does happen.
And when I look at the headers of my copy sent to me, it's got:

Sender: Nobody <nobody@norway.bodhost.com>

Anyone know a way around this?

I've got:

$head="Reply-To: \"Smallholders Online Newsletter\" <newsletter@smallholders.org>\n";
$head.="Return-Path: <newsletter@smallholders.org>\n";
$head.="From: \"Smallholders Online Newsletter\" <newsletter@smallholders.org>\n";

in the email header.

[Christina]

Thanks Carl,
For this reply I will try this and let you know.