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plaetzchen
Asked: 2011-11-18 03:55:38 +0800 CST

Postfix setting reply-to field to sender

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I would like to set the reply-to field to the sender of the mail if the recipient matches some addresses. I know I could do a regular expression like this to do this

/^(To|Cc):.*[email protected]/ PREPEND Reply-To: [email protected]

But that would be static, is there a way to set the sender of the message?

email postfix regular-expressions

1 Answers

  1. Best Answer

    According to http://www.postfix.org/header_checks.5.html you could use Perl Syntax for text replacement e.g.

    /^(To|Cc):.*[email protected]/ PREPEND Reply-To: ${1}

    The puzzle I've left to you is to look up the Perl RE Syntax to retrieve only the email as match.

    Update: In your case it's this RegExp:

    /^(To|Cc):\s*(\w+@\w+.\w{2,4})/ PREPEND Reply-To: ${2}

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