SMTP connect() failed PHP mailer - php

Question

I'm trying to send an email from my hotmail account using PHPMailer. It's working fine from my PC but when I try it on another PC I get this error message:
2015-04-23 17:31:18 CLIENT -> SERVER: EHLO localhost
2015-04-23 17:31:18 CLIENT -> SERVER: QUIT
2015-04-23 17:31:18 SMTP connect() failed. Mailer Error
Here's my code:
<?php
require "C:\wamp\www\PHPMailer-master\PHPMailerAutoload.php";
$mail = new PHPMailer();
$mail->SMTPSecure = 'SSL';
$mail->Username = "b1sakher#hotmail.fr";
$mail->Password = "rerered";
$mail->AddAddress("b1sakher#hotmail.fr");
$mail->FromName = "My Name";
$mail->Subject = "My Subject";
$mail->Body = "My Body";
$mail->Host = "smtp.live.com";
$mail->Port = 587;
$mail->IsSMTP();
$mail->SMTPAuth = true;
$mail->From = $mail->Username;
if(!$mail->Send())
{
echo "Mailer Error";
}
else
{
echo "Message has been sent";
}
?>

Answer 1

Firstly you should add 'Debugging Mode' to your code, this will tell you where you are going wrong.
$mail->SMTPDebug = SMTP::DEBUG_SERVER;
$mail->SMTPDebug = 2; //Alternative to above constant
I had a similar issue, but found out it was the CFS Firewall in Cpanel/WHM blocking the port.
Login into WHM.
Go to ConfigServer Security & Firewall inside plugins option.
Click on Firewall configuration.
Filter by SMTP Settings.
Look for SMTP_ALLOWUSER option and add the Cpanel account username separated by coma.
Restart the firewall.
If you don't have access to WHM ask your hosting provider.