Try this: Open file:
/includes/classes/class.email.php
In line 112 you will see this:
Code:
$this->mail->Password = $this->_smtpPass;
Add the following below that line:
Code:
$this->mail->SMTPSecure = 'tls';
Save changes and try to use the email system.
I never recommend running the web server in the same machine as the game server.
My recommendation has always been to get a dedicated server or VPS for the web alone running CentOS (Operating System).
Apache 2.4.25
PHP 5.6
Or if you don't know how to manage a linux server then just get a shared hosting account that allows outgoing connections to port 1433.