1 下载组件

$ composer require "swiftmailer/swiftmailer:^6.0"

2 利用php进行发送

   第一种方法利用smtp

require_once '/path/to/vendor/autoload.php';// Create the Transport$transport = (new Swift_SmtpTransport('smtp.example.org', 25))  ->setUsername('your username')  ->setPassword('your password');// Create the Mailer using your created Transport$mailer = new Swift_Mailer($transport);// Create a message$message = (new Swift_Message('Wonderful Subject'))  ->setFrom(['john@doe.com'])  ->setTo(['receiver@domain.org', 'other@domain.org' => 'A name'])  ->setBody('Here is the message itself')  ;// Send the message$result = $mailer->send($message);

第二种方法利用sendmail本地发送，前提是你的服务器已经安装好sendmail组件

// Sendmail$transport = new Swift_SendmailTransport('/usr/sbin/sendmail -bs');