'components' => [ 'mailer' => [ 'class' => 'yiiswiftmailerMailer', 'useFileTransport' =>false,//这句一定有,false发送邮件,true只是生成邮件在runtime文件夹下,不发邮件 'transport' => [ 'class' => 'Swift_SmtpTransport', 'host' => 'smtp.163.com', //每种邮箱的host配置不一样 'username' => '-qq32853803-@163.com', 'password' => '.......', 邮箱授权码 而非密码 'port' => '25', 'encryption' => 'tls', // tls ssl ], 'messageConfig'=>[ 'charset'=>'UTF-8', 'from'=>['qq328538031@163.com'=>'admin'] ], ], ] $mail= Yii::$app->mailer->compose(); $mail->setTo('cgjs@163.com'); $mail->setSubject("邮件测试"); //$mail->setTextBody('zheshisha '); //发布纯文字文本 $mail->setHtmlBody("<br>问我我我我我"); //发布可以带html标签的文本 // print_R($mail); // print_r($mail->send()); if($mail->send()) echo "success"; else echo "failse";