Email-in con Multisite dà indirizzo di destinazione errato

Ho un’installazione multisito con email impostata per una categoria su un sito secondario.

Normalmente le email vanno alla categoria, ma ora sia gli alias che gli indirizzi di inoltro finiscono per essere rifiutati sull’istanza principale. Gli header per l’alias o l’indirizzo di inoltro non mostrano alcuna differenza oltre al relay SMTP, ed entrambi finiscono nella situazione Email::Receiver::BadDestinationAddress.

Ecco un esempio di un’email in arrivo:

email headers
Return-Path: <how@zoethical.com>
Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::227])	by spool.mail.gandi.net (Postfix) with ESMTPS id 242347803E6	for <l-congo-eteint@zoethical.com>; Wed, 29 Nov 2023 09:36:53 +0000
Received: by mail.gandi.net (Postfix) with ESMTPSA id 009842000B	for <l-congo-eteint@zoethical.com>; Wed, 29 Nov 2023 09:36:52 +0000
Date: Wed, 29 Nov 2023 10:36:52 +0100
From: hellekin <how@zoethical.com>
To: l-congo-eteint@zoethical.com
Message-ID: <77e5de0c-aee9-4bb2-ad21-9ce80f1f4261@zoethical.com>
Subject: re test
Mime-Version: 1.0
Content-Type: text/plain;
 charset=UTF-8;
 format=flowed
Content-Transfer-Encoding: 7bit
Delivered-To: discourse@zoethical.com
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zoethical.com; s=gm1;
 t=1701250613;
 h=from:from:reply-to:subject:subject:date:date:message-id:message-id: 
 to:to:cc:mime-version:mime-version:content-type:content-type: 
 content-transfer-encoding:content-transfer-encoding;
 bh=5WhFPtf1bSv52DEdVeCHh9wP49G7aODMQQUgRsO0pO4=;
 b=VM7zTdKjXI81k29lV207guQiDqm0l6gQuXWhKM9mBbQPHa3rm8pqsqtcn3NSVIgJA6RJ/M
 GAaBwfhvjgjboQ2nKG+79JaBXEL0re/ecSgz9R8pkWVHG89mBs1WyCqZnL/oaUdlNFzMW+
 KVd9RQjehFuF11/anSn2VgxWKoIcjfhaUpiL3rXehGY9N8QeoleN7RSOJi2iq6XDzoJ9ZE
 EcPbpzDsjmQFHCSsEn4vFdBoYHMTU0pMgV4pxZbwFLZ5Y49QG9lBEoQdoeD9PDAZUQ6kwt
 Dts6vRXbN1GT2kTM57rXdcem9GA8LbfYOkP1FoXv8/Fn/LwdbLh0f+VrDr4DVA==
User-Agent: Mozilla Thunderbird
Content-Language: en-US, fr, fr-FR, fr-BE
X-GND-Sasl: how@zoethical.com
X-GND-Status: LEGIT
Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=zoethical.com
 header.s=gm1 header.b=VM7zTdKj; dmarc=none; spf=pass (spool.mail.gandi.net:
 domain of how@zoethical.com designates 2001:4b98:dc4:8::227 as permitted
 sender) smtp.mailfrom=how@zoethical.com