使用symfony/mailer替代swiftmailer/swiftmailer。

示例代码：

安装symfony/mailer：

composer require symfony/mailer

在代码中使用symfony/mailer：

use Symfony\Component\Mailer\Mailer; use Symfony\Component\Mailer\MailerInterface; use Symfony\Component\Mailer\Transport;

//使用SMTP传输 $transport = Transport::fromDsn('smtp://localhost'); $mailer = new Mailer($transport);

//使用sendmail传输 $transport = Transport::fromDsn('sendmail://localhost'); $mailer = new Mailer($transport);

//发送邮件 $email = (new Email()) ->from('hello@example.com') ->to('you@example.com') ->subject('Test email') ->text('Hello World!') ->html('

Hello World!

$mailer->send($email);