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PHPMailer 脚本停止工作，并显示神秘的 SMTP 错误消息

tag-icon • tag-icon php email smtp email-server localhost
PHPMailer 脚本停止工作，并显示神秘的 SMTP 错误消息

我正在尝试通过 PHPMailer 库在 PHP 脚本中发送邮件。以下代码过去曾成功发送电子邮件且没有出现警告：

function mail_attachment($filename, $path, $mailto, $subject, $message) {
  include("PHPMailer_5.2.3/class.phpmailer.php");
  include("PHPMailer_5.2.3/class.smtp.php");

  $email_config = parse_ini_file('email.cfg');
  $from  = $email_config['sender'];
  $alias = $email_config['alias' ];
  $smtp  = $email_config['host'  ];
  $port  = $email_config['port'  ];

  $mail             = new PHPMailer();
  $mail->SMTPDebug  = 2;
  $mail->IsHTML(false);       // send as HTML?
  $mail->WordWrap   = 50;     // set word wrap

  $mail->IsSMTP();
  $mail->Host       = $smtp;  // set the host SMTP server
  $mail->Port       = $port;  // set the host SMTP port

  $mail->Subject    = $subject;
  $mail->Body       = $message;
  $mail->SetFrom(   $from, $alias);
  $mail->AddReplyTo($from, $alias);
  $mail->AddAddress($mailto);
  $mail->AddAttachment($path, $filename);

  var_dump( $email_config );

  $sent = $mail->Send();
  if(!$sent)
    echo "Mailer Error: " . $mail->ErrorInfo ."\n";
  else
    echo "Message has been sent\n";
  return $sent;
}

突然间，自动报告电子邮件不再出现在人们的收件箱中，并生成以下消息：

SMTP -> FROM SERVER:220 relay-8.dlfw.twtelecom.net ESMTP Postfix

<br />SMTP -> FROM SERVER: 250-relay-8.dlfw.twtelecom.net
250-PIPELINING
250-SIZE 25600000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

<br />SMTP -> FROM SERVER:250 2.1.0 Ok

<br />SMTP -> FROM SERVER:554 5.7.1 <localhost.localdomain>: Helo command rejected: Impossible, I am localhost

<br />SMTP -> ERROR: RCPT not accepted from server: 554 5.7.1 <localhost.localdomain>: Helo command rejected: Impossible, I am localhost

<br />SMTP Error: The following recipients failed: [email protected]
Mailer Error: SMTP Error: The following recipients failed: [email protected]<p>SMTP server error: 5.7.1 <localhost.localdomain>: Helo command rejected: Impossible, I am localhost
</p>

Mail Was NOT Successfully Sent!

您对代码停止工作的原因有什么想法吗？

问题出在我这边还是远程邮件服务器上？

我有以下主机名配置：

/etc/主机名

Dev07

/etc/hosts

127.0.0.1 localhost
127.0.1.1 lamp

#Required for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

答案1

看起来远程服务器不喜欢您的服务器报告它位于您正在发送的localhost.localdomain内容中这一事实。HELO

这可能是由于远程服务器将其 SMTP 服务配置为拒绝无效的HELOs。也可能是由于您的本地服务器上发生了某些变化，导致主机名配置不正确。

我会推荐设置主机名更改为某些内容，这样sendmail就不会报告为localhost.localdomain。在此过程中，使用/etc/hosts服务器的 IP 地址、FQDN 和主机名进行更新通常也是一个好主意。

有教程这里如何去做。

/etc/hostname:
hostname.domain.tld


/etc/hosts:
127.0.0.1   localhost localhost.localdomain
::1         localhost localhost.localdomain

1.2.3.4   hostname.domain.tld hostname

如果您有基于 RedHat/CentOS 的系统，请编辑/etc/sysconfig/network并设置：

HOSTNAME=hostname.domain.tld

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