email can't be sent to hotmail n other accounts

[dr_wack]

hi fellows

my mail() funtion is working but just for yahoo account...not for hotmail and gawab.com....can any tel me why
i have used this code

///////////////////

$email_subject = $POST['txtf_subject'];
$email_message = $POST['txta_reply'];
//$email_to = "[e-mail]"; // Who the email is too
$email_to = $_POST['txtf_replyto']; // Who the email is too
$ok = mail($email_to, $email_subject, $email_message);
echo "mail return=".$ok;
if($ok) {
echo "<font face=verdana size=2>The file was successfully sent!</font>";
} else {
die("Sorry but the email could not be sent. Please go back and try again!");

//////////

need it urgently

[suntra]

Do you get an error when the account is @.com or @gawab.com OR do you simply not get the message on Hotmail or Gawab?

If your problem is the 2nd option, did you think of checking the junk mail folder?