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In this case, we’re going to allow any sender address contained in a list of format noreply@domain.com to be rewritten to noreply+allow@domain.com (line 3)

Script

Code Block
if ( message.getHeader('from')!=null) {
  const fromStr = message.getHeader("From").toLowerCase();
  const addresses = ["noreply@wanted.com", "noreply@other.com"];

  for (let id in addresses) {
    if (fromStr.indexOf(addresses[id])!=-1) {
      let updated = addresses[id].replace("@", "+allow@");
      message.setHeader('From', updated);
      print('noreply@wanted.com was rewritten to '+updated);
      replaced=true;
      break;
    }
  }
}

Email

Code Block
MIME-Version: 1.0
Received: by 10.223.112.12 with HTTP; Sat, 18 Jun 2011 22:42:26 -0700 (PDT)
Date: Sun, 19 Jun 2011 17:42:26 +1200
Subject: CHANGE_SUBJECT!!!
From: noreply@other.com
To: support@thepluginpeople.com
Content-Type: text/plain; charset=UTF-8

(!) Match me. This is the real textssss

Validation Script

Code Block
assert.equal( message.getHeader('from'), 'noreply+allow@other.com');

RuntimeReport

Showing the applied header update

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Issue

With comment header prefix showing the value coming through:

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