zend mail smtp选项

Question

我正在尝试使用zend / Mail

通过smtp选项发送电子邮件

这是我的代码：

//use the base class
use Zend\Mail;  
use Zend\Mime\Part as MimePart;  
use Zend\Mime\Message as MimeMessage; 

这是我在控制器中的邮件功能代码

//mail functionality
        $email = "xxxx@gmail.com";
        $pas = "xxxx";

        // setup SMTP options  
        $options = new Mail\Transport\SmtpOptions(array(  
                    'name' => 'localhost',  
                    'host' => 'smtp.gmail.com',  
                    'port'=> 587,  
                    'connection_class' => 'login',  
                    'connection_config' => array(  
                        'username' => $email,  
                        'password' => $pas,  
                        'ssl'=> 'tls',  
                    ),  
        ));  

        $this->renderer = $this->getServiceLocator()->get('ViewRenderer');  
        $content = $this->renderer->render('patient-register/email/template', null);  

        // make a header as html  
        $html = new MimePart($content);  
        $html->type = "text/html";  
        $body = new MimeMessage();  
        $body->setParts(array($html,));  

        // instance mail   
        $mail = new Mail\Message();  
        $mail->setBody($body); // will generate our code html from template.phtml  
        $mail->setFrom('xxxx@xxxx.com','mub');  
        $mail->setTo('xxxx@gmail.com');  
        $mail->setSubject('TESTING THE EMAIL ACCCOUNT');  

        $transport = new Mail\Transport\Smtp($options);  
        $transport->send($mail); 

因此，当我尝试从我的localhost发送邮件时，它就成功了

但是当我尝试从远程服务器发送电子邮件时，128.199.123.145并且服务器是来自digitalocean的centos服务器。

远程服务器是否有任何改变。

谢谢，