The phpmailer local test prompts that the message is successfully sent, but the email cannot receive the message.

The phpmailer local test prompts that the message is successfully sent, but you cannot receive it in your mailbox. please kindly advise, & lt ;? Php & nbsp; require_once ('class. phpmailer. php '); require_once ("class. smtp. php "); & nbsp; $ mail & phpmailer: the local test shows that the message is successfully sent, but the email cannot receive the message.
Could you give me some advice,

 Require_once ('class. phpmailer. php ');
Require_once ("class. smtp. php ");
$ Mail = new PHPMailer ();

$ Mail-> CharSet = "UTF-8"; // sets the mail encoding, the default ISO-8859-1, which must be set to UTF-8 if you send Chinese
$ Mail-> IsSMTP (); // you can specify the SMTP service.
$ Mail-> SMTPAuth = true; // enable SMTP verification
$ Mail-> SMTPSecure = "ssl"; // SMTP Security Protocol
$ Mail-> Host = "smtp.163.com"; // SMTP server
$ Mail-> Port = 465; // SMTP server Port number
$ Mail-> Username = "123456@163.com"; // SMTP server Username
$ Mail-> Password = "123456"; // SMTP server Password
$ Mail-> SetFrom ('1970 @ 163.com ', '20160901'); // you can specify the sender address and name.
$ Mail-> AddReplyTo ("123456@163.com", "123456 ");
// Set the email reply recipient's address and name
$ Mail-> Subject = ''; // you can specify the mail title.
$ Mail-> AltBody = "to view this email, switch to an HTML-supported email client ";
// Optional, backward compatibility considerations
$ Mail-> MsgHTML ('Hello, simplified, traditional !!'); // Set the email content
$ Mail-> AddAddress ('1970 @ 163.com ', "123456 ");
$ Mail-> SMTPDebug = true;
// $ Mail-> AddAttachment ("images/phpmailer.gif"); // attachment
If (! $ Mail-> Send ()){
Echo "failed to send:". $ mail-> ErrorInfo;
} Else {
Echo "congratulations, the email is sent successfully! ";
}
?>

------ Solution --------------------
$ Mail-> Port = 465; // SMTP server Port number
Why not use port 25?
------ Solution --------------------
Comment out the two sentences
$ Mail-> SMTPSecure = "ssl"; // SMTP Security Protocol
$ Mail-> Port = 465; // SMTP server Port number