为什么我不能使用我的本地域发送电子邮件，但如果我使用gmail，它将成功发送到localhost

Question

Why I can't send email using my domain in localhost? But when I used gmail smtp it's successfully sent email (in localhost)

This is the error using debug=4 :

2016-08-31 07:08:05 Connection: opening to ssl://mail.mydomain.com:443, timeout=300, options=array ( ) 2016-08-31 07:08:05  Connection: opened

this is my code

require 'PHPMailer/PHPMailerAutoload.php';

$mail = new PHPMailer;

$mail->isSMTP();                                   // Set mailer to use SMTP
$mail->Host = 'mail.mydomain.mncgroup.com';                    // Specify main and backup SMTP servers
$mail->SMTPAuth = true;                            // Enable SMTP authentication
$mail->Username = 'emailsender@mydomain.com';         // SMTP username
$mail->Password = 'pass';                   // SMTP password
$mail->SMTPSecure = 'ssl';                         // Enable TLS encryption, `ssl` also accepted
$mail->Port = 443;  
$mail->SMTPDebug=4;

$mail->setFrom('emailsender@mydomain.com', 'a');
$mail->addReplyTo('emailsender@mydomain.com', 'a');

$mail->addAddress('myemail.mydomain.com');   // Add a recipient
//$mail->addCC('cc@example.com');
//$mail->addBCC('bcc@example.com');

$mail->isHTML(true);  // Set email format to HTML



$mail->Subject = 'Reminder ';
$mail->Body    = $bodyContent;

if(!$mail->send()) {
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;

} else {
    echo 'Message has been sent';
}

Answer 1

There is a lesser probability of sending mails from localhost as it requires SMTP server, and that is not installed by default. So you cannot send mails from local directly. There are solutions :

1. Install the SMTP server on your local.
2. Use third party SMTP server. (You are using GMAIL)

In case you go by second solution, Please go through the below link

http://www.mittalpatel.co.in/php_send_mail_from_localhost_using_gmail_smtp