后缀多个 IP SMTP 横幅

Question

我已经安装了 postfix2.11.3并且我们的服务器上有多个 IP 地址，我们希望托管两个域，这些域是隔离的，并且在它们自己的 IP 上运行。

domain1  unix -       -       n       -       -       smtp
   -o smtp_bind_address=1.1.1.1
   -o smtp_helo_name=mail.abc.com
   -o syslog_name=postfix-mail.abc.com

domain2  unix -       -       n       -       -       smtp
   -o smtp_bind_address=2.2.2.2
   -o smtp_helo_name=mail.xyz.com
   -o syslog_name=postfix-mail.xyz.com

以下传输器/etc/postfix/sender_transport也定义在main.cf：

@abc.com    domain1:
@xyz.com    domain2:

重新启动 postfix 后，它停止监听端口25：

[root@postfix-2.11.3]# telnet 1.1.1.1 25
Trying 1.1.1.1...
telnet: connect to address 1.1.1.1: Connection refused

但是，如果我在master.cf其中使用以下行，则在 25 上收听，如果我 telnet，则可以看到横幅：

1.1.1.1:smtp inet  n - n - - smtpd -o myhostname=mail.abc.com 
2.2.2.2:smtp inet  n - n - - smtpd -o myhostname=mail.xyz.com

但是我想告诉我的邮件服务器当你发送电子邮件时使用特定的域，就像 sender_transport

我在做什么错？

笔记：

我已经从master.cf上面的域 1 和域 2 中删除并替换了以下行：

smtp      inet  n       -       n       -       -       smtpd

Answer 1

解决方案 - 需要 Postfix 2.7 或更高版本：

/etc/postfix/master.cf

#smtp      inet  n       -       n       -       -       smtpd
127.0.0.1:smtp inet  n     -       n       -       -       smtpd
      -o syslog_name=postfix-localhost
      -o smtp_helo_name=localhost
      -o smtp_bind_address=127.0.0.1
      -o myhostname=localhost

65.xxx.xxx.100:smtp inet  n     -       n       -       -       smtpd
      -o syslog_name=postfix-mail.abc.com
      -o smtp_helo_name=mail.abc.com
      -o smtp_bind_address=65.xxx.xxx.100
      -o myhostname=mail.abc.com

65.xxx.xxx.200:smtp inet  n     -       n       -       -       smtpd
      -o syslog_name=postfix-mail.xyz.com
      -o smtp_helo_name=mail.zyx.com
      -o smtp_bind_address=65.xxx.xxx.200
      -o myhostname=mail.xyz.com

abc-out  unix -       -       n       -       -       smtp
   -o smtp_bind_address=65.xxx.xxx.100
   -o smtp_helo_name=mail.abc.com
   -o syslog_name=postfix-mail.abc.com

xyz-out  unix -       -       n       -       -       smtp
   -o smtp_bind_address=65.xxx.xxx.200
   -o smtp_helo_name=mail.xyz.com
   -o syslog_name=postfix-mail.xyz.com

/etc/postfix/main.cf

sender_dependent_default_transport_maps = hash:/etc/postfix/sender_transport

/etc/postfix/sender_transport

# Use source IP - 65.xxx.xxx.100
@abc.com                abc-out:
@example.com            abc-out:

# Use source IP - 65.xxx.xxx.200 
@xyz.com                xyz-out:

运行命令以生成哈希数据库

postmap hash:/etc/postfix/sender_transport

重新启动/重新加载后缀

service postfix reload

测试

[root@localhost ~]# telnet 65.xxx.xxx.200 25
Trying 65.xxx.xxx.200...
Connected to 65.xxx.xxx.200.
Escape character is '^]'.
220 mail.xyz.com ESMTP Postfix

发送邮件测试

[root@localhost ~]# telnet localhost 25
Trying ::1...
telnet: connect to address ::1: Connection refused
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 localhost ESMTP Postfix
helo localhost
250 localhost
mail from: spatel@xyz.com
250 2.1.0 Ok
rcpt to: spatel@gmail.com
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
Hello world!
.
250 2.0.0 Ok: queued as 93E708207BA

转到 gmail 收件箱 > 显示原件

Delivered-To: spatel@gmail.com
Received: by 10.xxx.xxx.xxx with SMTP id w64csp782609qgd;
        Tue, 9 Dec 2014 09:35:57 -0800 (PST)
X-Received: by 10.xxx.xxx.xxx with SMTP id o28mr4132552yha.168.1418146557180;
        Tue, 09 Dec 2014 09:35:57 -0800 (PST)
Return-Path: <spatel@xyz.com>
Received: from mail.xyz.com ([65.xxx.xxx.200])
        by mx.google.com with ESMTPS id n10si743294ykc.114.2014.12.09.09.35.56
        for <spatel@gmail.com>
        (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
        Tue, 09 Dec 2014 09:35:56 -0800 (PST)
...
...
Message-Id: <20141209173720.93E708207BA@localhost.localdomain>
Date: Tue,  9 Dec 2014 12:37:11 -0500 (EST)
From: spatel@xyz.com

Hello world!

瞧！！看到它使用65.xxx.xxx.200IP地址发送电子邮件..

Received: from mail.xyz.com ([65.xxx.xxx.200])