composer require phpmailer/phpmailer

$result = SMTP::getInstance()->send($email,'这里是邮件标题'.time(),'您的验证码是:'.$code);
<?php
/**
* Created by PhpStorm.
* User: Owen Zhang
* Date: 2019/3/19
* Time: 下午2:19
*/

namespace app\common;

use PHPMailer\PHPMailer\PHPMailer;
use Log;

class SMTP
{
use InstanceTrait;

/**
* 发送邮件
* @access public
* @param $email 邮箱地址
* @param $subject 邮件标题
* @param $content 邮件内容
* @param $isHtml 是否以HTML文档格式发送  发送后客户端可直接显示对应HTML内容
* @return array
*/
public function send($email, $subject, $content, $isHtml = false)
    {
$mail = new PHPMailer;

$mail->isSMTP();

$mail->CharSet = "UTF-8";

$mail->Encoding = 'base64';

$mail->SMTPDebug = config("app_env") == "local" ? 1 : 0; //是否调试

$mail->SMTPAuth = true;

$mail->SMTPSecure = 'ssl';                    // 允许 TLS 或者ssl协议

$mail->Host = "smtp.163.com";

//        $mail->Port = config("app_env") == "local" ? 465 : 587;
$mail->Port = 465;

$mail->Username = "owen24@163.com";

$mail->Password = "EXVH123456KDSGGRJ";

$mail->setFrom("owen24@163.com", "owenweb 社区"); // 发件人邮箱和名称

$mail->Subject = $subject;

$mail->Body = $content;

$mail->isHTML($isHtml); //是否启用html

$mail->addAddress($email); //收件用户

$mail->send();

if (!$mail->send()) {
var_dump($content);
var_dump($mail->ErrorInfo);
//            \Log::warning("邮件发送失败： " . $mail->ErrorInfo, []);
return ["code" => _MSG_SYSTEM_ERROR, "msg" => "邮件发送失败"];
        }
return ["code" => _MSG_SYSTEM_SUCCESS, "msg" => "邮件发送成功"];
    }
}


163邮箱SMTP设置

开启后就会显示一串密码，即是$mail->Password = "EXVH123456KDSGGRJ";修改即可

phpmailer/phpmailer 邮件发送，163SMTP设置_邮件发送