我正在运行 ispconfig web/mail 服务器，问题是我的邮件最终被谷歌归为垃圾邮件。我已经设置了 rDNS、DKIM、SPF、dmarc，所以我认为记录部分不会有问题。但是我的邮件头在一个地方包含 localhost，我听说这是一种非常糟糕的做法，因为谷歌不喜欢它。
Delivered-To: [email protected]
Received: by 2002:aed:2be7:0:0:0:0:0 with SMTP id e94-v6csp879456qtd;
Tue, 26 Jun 2018 01:16:08 -0700 (PDT)
X-Google-Smtp-Source: AAOMgpdMXb1sd9e8+CGZm5UWsGVGV2G5So66uCWqVsQCptMdhHxphnQj2iyCHqJgHJhujlVRGeaa
X-Received: by 2002:a5d:4306:: with SMTP id h6-v6mr558073wrq.58.1530000968344;
Tue, 26 Jun 2018 01:16:08 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1530000968; cv=none;
d=google.com; s=arc-20160816;
b=MhBt1s06ETIYsikSsJkpxi0hyr4cCgI/+/4zE+vMSzV4Su4SHqkjtE968b45v9aUHR
4F0OZZRwzm3BjPHBDjrg5FY55D49rQB+GUYwiNR6wmWRVx9Cjlfd9K3TpHMQlpWEx955
5FAJ4dlhNGmYAdzZ8XWiRacbfQrR7YWeQHAqqCx6TbOMQ4N9SUS4oWY9OyBZ6Vcdyp0K
M/1uSFUldLSjauIzMCu6binU6BN5q/6TNIC03FxyWhRE0xowszA4LgJD4UqQD64fKEoA
txZ1QjXC+OASiWfL1R2lQS/zCBwMUq3qjMtrBGDdVTmsQdG0bqt2rLUv4pjajDJiXIM7
U8fA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
h=content-language:mime-version:user-agent:date:message-id:subject
:from:to:dkim-signature:arc-authentication-results;
bh=f87H22OjvOAW9flgprGZogNpubh4T1X8JmegL8h3LxM=;
b=dcZMOGTjiaxxHwav6FRyqLnRkmtqakBEEGGO0W7uy3Uq9UGdGJ4/BRpjGLg4Y4qbvl
df79X6i51neY/G6X7eVBoKpiTkF+fIAYbRNJNembCbmDJfR0m4J/Ba6lsH6DJRNzaOSV
EjJrXA22d0rdtiqLWAUXfwzBLXzZ7Hsu49/B0DMCulk4+WMbCI+Jqw5/lCnS7DV5FA/q
9d9oMRPLWAvwc4/xPXsJWzgoYMyhQXYeGYFRDT+qM8P0eOf+tRDC3pkTT0JQL7f3uOLz
SzjDH4ln3JjoN4WCwtC9aS332rpAmQuF/Q0qbztb3a4QRGQho1LYpzRkp0C5q6fowmY7
C+yw==
ARC-Authentication-Results: i=1; mx.google.com;
dkim=pass [email protected] header.s=default header.b=MLJoQ6mi;
spf=pass (google.com: domain of [email protected] designates YY.YY.YYY.YYY as permitted sender) [email protected];
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=example.com
Return-Path: <[email protected]>
Received: from mail.example.com (mail.example.com. [YY.YY.YYY.YYY])
by mx.google.com with ESMTPS id h18-v6si1173503wrr.20.2018.06.26.01.16.08
for <[email protected]>
(version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256);
Tue, 26 Jun 2018 01:16:08 -0700 (PDT)
Received-SPF: pass (google.com: domain of [email protected] designates YY.YY.YYY.YYY as permitted sender) client-ip=YY.YY.YYY.YYY;
Authentication-Results: mx.google.com;
dkim=pass [email protected] header.s=default header.b=MLJoQ6mi;
spf=pass (google.com: domain of [email protected] designates YY.YY.YYY.YYY as permitted sender) [email protected];
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=example.com
Received: from localhost (localhost [127.0.0.1]) by mail.example.com (Postfix) with ESMTP id BC89B56406 for <[email protected]>; Tue, 26 Jun 2018 10:16:07 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=example.com; h= content-language:content-type:content-type:mime-version :user-agent:date:date:message-id:subject:subject:from:from; s= default; t=1530000966; x=1531815367; bh=y3K031cw5dXuKH6FKdvt0KZN 8YuBBixONrHJK24NlAM=; b=MLJoQ6mipg+fjabDpidFG5ysG7zhKhKO7+uJm55S 4IFiYv5s3zPgj0VfH/RW0D3Z9+AjbxnZ5Ed7KrFmq3wjBGQCbhnBhvT/yAAIGaTq sgLe5xdiSyUzKOfSD7Zu/vbBt9KCvIjeufgiRhp3THEZeOgoA8aA4Ftw7wbvYpBc RT4=
X-Virus-Scanned: Debian amavisd-new at mail.example.com
Received: from mail.example.com ([127.0.0.1]) by localhost (mail.example.com [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id rxAAFvmoEOV3 for <[email protected]>; Tue, 26 Jun 2018 10:16:06 +0200 (CEST)
Received: from [192.168.1.149] (unknown [XX.XXX.XXX.XXX]) (Authenticated sender: [email protected]) by mail.example.com (Postfix) with ESMTPSA id B46F75635F for <[email protected]>; Tue, 26 Jun 2018 10:16:06 +0200 (CEST)
To: [email protected]
From: Diogo Jesus <[email protected]>
Subject: test
Message-ID: <[email protected]>
Date: Tue, 26 Jun 2018 10:16:04 +0200
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="------------E56F9C1A6EEA50EAF52DC248"
Content-Language: fr
X-Antivirus: Avast (VPS 180625-4, 25/06/2018), Outbound message
X-Antivirus-Status: Clean
--------------E56F9C1A6EEA50EAF52DC248
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
--------------E56F9C1A6EEA50EAF52DC248--
我的问题是，为什么我仍然将邮件发送到 Gmail 上的垃圾邮件？