使用查詢程序重定向的路由器 - exim4

我們正在使用 配置Exim4路由器driver = queryprogram，其想法是執行腳本並根據腳本的邏輯重定向某些地址。

問題是在調試 exim 如何路由地址時，我們得到一個 my_router router: command returned non-zero code 127錯誤。

為什麼 exim 得到一個command returned non-zero code 127? 我們如何解決這個問題？

謝謝！

這是一些-希望-有用的資訊：

# exim -d -bt anaddress@mylocaldomain.com

...

--------> my_router router <--------
local_part=anaddress domain=mylocaldomain
checking local_parts
anaddress in "! root"? yes (end of list)
R: my debug message
calling my_router router
my_router router called for anaddress@mylocaldomain.com: domain = mylocaldomain.com
requires uid=1001 gid=1001 current_directory=/tmp
direct command:
 argv[0] = /tmp/myscript.sh
direct command after expansion:
 argv[0] = /tmp/myscript.sh
my_router router: defer for anaddress@mylocaldomain.com
 message: my_router router: command returned non-zero code 127
anaddress@mylocaldomain.com cannot be resolved at this time: my_router router: command returned non-zero code 127
search_tidyup called
>>>>>>>>>>>>>>>> Exim pid=8094 terminating with rc=1 >>>>>>>>>>>>>>>>

處理郵件的腳本（/tmp/myscript.sh）只是

#/usr/bin/php

echo 'redirect another_address@another_domain.com';
exit;

腳本有權限

$ ls /tmp
total 196K
4.0K -rwxrwxr-x 1 someuser somegroup         58 Oct  5 20:48 myscript.sh

路由器配置exim4.conf.template如下：

...

my_router:
 debug_print = "R: my debug message"
 driver = queryprogram
 command = /tmp/myscript.sh
 current_directory = /tmp
 command_user = myuser
#  domains = +local_domains
 local_parts = ! root
 cannot_route_message = Unknown Special user

您在腳本中有一個錯字：在雜湊之後省略了 bang。

#!/usr/bin/php

echo 'redirect another_address@another_domain.com';
exit;

退出程式碼 127 表示只要 shebang 行格式錯誤，就找不到合適的解釋器。

此外，我不確定您是否真的希望您的腳本由 PHP 解釋。所以可能你必須用#!/bin/sh

引用自：https://serverfault.com/questions/807365