带有来自脚本的错误信息的 Postfix 退回消息

Question

我想在后缀中创建退回消息，该消息将显示来自我的过滤器脚本的错误信息。我发现如果我从像 1 这样的脚本返回错误代码，我会看到所有数据都打印到标准输出，但我也会看到有关脚本文件的信息。例如：

This is the mail system at host mail.somesys.pl.

I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can delete your own text from the attached returned message.

                   The mail system

<user01@mail.somesys.pl>: Command died with status 1:
    "/opt/SmtpReceiver/SmtpReceiverHandler.py". Command output: NO FILES OR BAD
    CREDENTIALS

而我只想拥有这样的东西：

...
                   The mail system

NO FILES OR BAD CREDENTIALS

我的 postfix master.cf 配置：

smtp      inet  n       -       n       -       -       smtpd
        -o content_filter=myhook:dummy
...
myhook unix - n n - - pipe
  flags=F user=user01 argv=/opt/SmtpReceiver/SmtpReceiverHandler.py ${sender} ${size} ${recipient}

还有python脚本：

if __name__=='__main__':

    try:
        app = SmtpReceiverHandler();
        app.run();
    except Exception, e:
        print e;
        sys.exit(1);

Answer 1

您可以在main.cf 中指定bouce_template_file

#/etc/postfix/main.cf
bounce_template_file = /etc/postfix/bounce.cf

#/etc/postfix/bounce.cf
failure_template = <<EOF
Charset: us-ascii
From: MAILER-DAEMON (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
Postmaster-Subject: Postmaster Copy: Undelivered Mail

    The mail system
EOF

参考：Postfix docs