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Tim Styles's questions

Martin Hope
Tim Styles
Asked: 2024-11-19 23:23:25 +0800 CST
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我想将主题为“您的包裹已到达”的电子邮件重定向到本地电子邮件别名[email protected]。为此，我创建了以下路由器：

redirect_packages:
  debug_print = "R: redirect_packages with subject $header_subject"
  driver = redirect
  domains = +local_domains
  condition = ${if eq {$header_subject} {Your Parcel has Arrived.} {true} }
  data = packages@${domain}

我无法使条件结果为真。调试输出为：

--------> redirect_packages router <--------
local_part=me domain=example.com
checking domains
cached yes match for +local_domains
cached lookup data = example.com
example.com in "+local_domains"? yes (matched "+local_domains" - cached)
 -­considering: R: redirect_packages with subject $header_subject
 ----expanding: R: redirect_packages with subject $header_subject
 -------result: R: redirect_packages with subject Your Parcel has Arrived.
            ----(tainted)
R: redirect_packages with subject Your Parcel has Arrived.
checking "condition" "${if eq {$header_subject} {Your Parcel has Arrived.} {true} }"...
 -­considering: ${if eq {$header_subject} {Your Parcel has Arrived.} {true} }
  -­considering: $header_subject} {Your Parcel has Arrived.} {true} }
  ---expanding: $header_subject} {Your Parcel has Arrived.
  -------result:  {Your Parcel has Arrived.
  -­considering: true} }
  ---expanding: true
  -------result: true
 ---condition: eq {$header_subject} {Your Parcel has Arrived.} {true}
 -----result: false
 ---expanding: ${if eq {$header_subject} {Your Parcel has Arrived.} {true} }
 -------result:
redirect_packages router skipped: condition failure

我看不出哪里出了问题。调试消息中正确扩展了 $header_subject。但是，在条件下它无法与看起来相同的文本匹配。

条件扩展的方式看起来也不对，就好像它缺少 $header_subject 后的右括号。

有人能解释一下发生了什么情况以及为什么结果不正确吗？

exim