配置后缀以使用邮箱-在同一域中发送失败

Question

The Configs

我们执行了通常的main.cf (后缀)中继/sasl条目：

# Amavisd + SpamAssassin + ClamAV
#
content_filter = smtp-amavis:[127.0.0.1]:10024

# Concurrency per recipient limit.
smtp-amavis_destination_recipient_limit = 1

relayhost = [smtp.mailgun.org]:587

smtp_tls_security_level = encrypt
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = static:login@domain.com:password
smtp_sasl_security_options = noanonymous

这实际上是非常好的工作，邮件发送也被正确地记录在Mailgun之下。

问题

如果我们在我们的领域内发送一封电子邮件，它不会触发邮箱。意思是:如果JohnDoe@ourXYZDomain.com向JaneDoe@ourXYZDomain发送电子邮件，它将通过后缀发送。如果JohnDoe@ourXYZDomain.com向JohnDoe@someOtherDomain.com发送电子邮件，则通过Mailgun发送并记录电子邮件。

分析

在同一域中发送邮件，并且不会引发错误。当查看接收到的电子邮件的标题时，它显示postfix甚至没有麻烦使用Mailgun。参见第6行中的localhost 127.0.0.1：

Subject:test - 00:11
Contact photo
From    johndoe@ourXYZDomain.com    Date    Mon 00:11
Return-Path: <johndoe@ourXYZDomain.com>
Delivered-To: janedoe@ourXYZDomain.com
Received: from mail.ourXYZDomain.com (localhost [127.0.0.1])
    by mail.ourXYZDomain.com (Postfix) with ESMTP id 49KwDw97hggXdtN
    for <janedoe@ourXYZDomain.com>; Sun, 10 May 2020 20:11:12 +0000 (UTC)
Authentication-Results: mail.ourXYZDomain.com (amavisd-new); dkim=pass
    reason="pass (just generated, assumed good)"
    header.d=ourXYZDomain.com
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=
    ourXYZDomain.com; h=user-agent:message-id:subject:subject
    :to:from:from:date:date:content-transfer-encoding:content-type
    :content-type:mime-version; s=dkim; t=1589141471; x=1591733472;
    bh=WonWKNs0MVBQ4Md9bT3TQ0-----=; b=1lp9qX-----YE
    HQwrRVwjLjcPcP/jkjhgjghgfWisfODNZ5xHnQto5Xa
    D6/Wj8fAEpwiu8uG5Ujhugz778gjNZ8UhFXtJf2aK
    1B8iZembDuiIsjg6fKj6snRjA=
X-Virus-Scanned: amavisd-new at mail.ourXYZDomain.com
Received: from mail.ourXYZDomain.com ([127.0.0.1])
    by mail.ourXYZDomain.com (mail.ourXYZDomain.com [127.0.0.1]) (amavisd-new, port 10026)
    with ESMTP id xzds0121548c for <janedoe@ourXYZDomain.com>;
    Sun, 10 May 2020 20:11:11 +0000 (UTC)
Received: from _ (localhost [127.0.0.1])
    by mail.ourXYZDomain.com (Postfix) with ESMTPSA id 49KwDv54101252XdtL
    for <janedoe@ourXYZDomain.com>; Sun, 10 May 2020 20:11:11 +0000 (UTC)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII;
    format=flowed
Content-Transfer-Encoding: 7bit
Date: Mon, 11 May 2020 00:11:11 +0400
From: johndoe@ourXYZDomain.com
To: janedoe@ourXYZDomain.com
Subject: test - 00:11
Message-ID: <1003f6125a2ff654101214@ourXYZDomain.com>
X-Sender: johndoe@ourXYZDomain.com

我们对这种行为没有任何解释。也许我们漏掉了什么？

谢谢你的暗示

Answer 1

当您将邮件从一个mydomain虚拟邮箱发送到另一个mydomain时，虚拟邮箱后缀将不会将其中继到Mailgun并在本地传输它。

您需要创建多个Postfix实例，其中一个实例将在没有本地传递的情况下将所有邮件中继到Mailgun，而第二个实例将侦听25个端口的收入邮件，并将其传递到虚拟盒。

对这个解决方案的解释，您可以在那里找到：http://www.postfix.org/MULTI_实例_README.html