我有一个个人 VPS，用作个人电子邮件和 Web 服务器。今天我正在诊断电子邮件，并在 Gmail 上创建了一个测试帐户。起初我没有实施 DomainKey，只有 SPF 可用。我从我的服务器发送了一封电子邮件，它进入了收件箱文件夹。这是消息：
Delivered-To: [email protected]
Received: by 10.49.109.169 with SMTP id ht9csp256915qeb;
Thu, 10 Oct 2013 08:27:14 -0700 (PDT)
X-Received: by 10.60.42.168 with SMTP id p8mr617741oel.73.1381418834422;
Thu, 10 Oct 2013 08:27:14 -0700 (PDT)
Return-Path: <[email protected]>
Received: from azary.ir (azary.ir. [198.23.143.195])
by mx.google.com with ESMTP id t30si17805783yhb.274.1969.12.31.16.00.00;
Thu, 10 Oct 2013 08:27:14 -0700 (PDT)
Received-SPF: pass (google.com: domain of [email protected] designates 198.23.143.195 as permitted sender) client-ip=198.23.143.195;
Authentication-Results: mx.google.com;
spf=pass (google.com: domain of [email protected] designates 198.23.143.195 as permitted sender) [email protected]
Received: from azary.ir (localhost [127.0.0.1])
by azary.ir (Postfix) with ESMTPA id F06AF141077
for <[email protected]>; Thu, 10 Oct 2013 18:57:12 +0330 (IRST)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
format=flowed
Content-Transfer-Encoding: 7bit
Date: Thu, 10 Oct 2013 18:57:12 +0330
From: "soroosh.azary" <[email protected]>
To: [email protected]
Subject: test15
Message-ID: <[email protected]>
X-Sender: [email protected]
User-Agent: Roundcube Webmail/0.9.4
;aslfj ;lsakjf ;asj;fdlkj
然后我意识到我还没有在服务器上启用 DomainKey。启用后，我再次向同一帐户发送了一封电子邮件，但这次它落入了垃圾邮件文件夹。以下是邮件内容：
Delivered-To: [email protected]
Received: by 10.49.109.169 with SMTP id ht9csp260477qeb;
Thu, 10 Oct 2013 09:33:48 -0700 (PDT)
X-Received: by 10.182.66.164 with SMTP id g4mr1837295obt.47.1381422827879;
Thu, 10 Oct 2013 09:33:47 -0700 (PDT)
Return-Path: <[email protected]>
Received: from azary.ir (azary.ir. [198.23.143.195])
by mx.google.com with ESMTP id z44si17956142yhn.218.1969.12.31.16.00.00;
Thu, 10 Oct 2013 09:33:47 -0700 (PDT)
Received-SPF: pass (google.com: domain of [email protected] designates 198.23.143.195 as permitted sender) client-ip=198.23.143.195;
Authentication-Results: mx.google.com;
spf=pass (google.com: domain of [email protected] designates 198.23.143.195 as permitted sender) [email protected];
dkim=pass [email protected]
Received: from azary.ir (localhost [127.0.0.1])
by azary.ir (Postfix) with ESMTPA id CC8FF1400AA
for <[email protected]>; Thu, 10 Oct 2013 20:03:45 +0330 (IRST)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=azary.ir; s=2013;
t=1381422825; bh=JEpdovrX5kTP5c8EfB0d+fjgdTg6w2qACp6GgAOfVto=;
h=Date:From:To:Subject:From;
b=X9ecar48Un7rocSIUgJllNLJM/ukuc57zaGUxM3Iwp8uKy2Z6lUOc0mrqpJDhx+/c
ZbS5d4nkM8Geq4982ik6/0l0NDsTxtBIkJosRNeU02MhxSb7fnE9vCCx0W379w4A+T
CpuTT28Dq6np4mRrIEiVX/DmhmI2Zu7GdSVU2CjupQ8Jyei/X6/33IS/+9BJ522++H
FlkwQ3lFDWgU6zBdvmXm6TYTvA+phJKCC3rgbKTlyQInT8KPLpgZFzzzBwJkWWmKOR
0pdsapmPjiJMXoCoLXpPoT4Ld1Ff4ZmT1z15LEbgigdihZRyeAd/BNKjFwk0bVqSr4
8aVQRmzPH17+w==
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
format=flowed
Content-Transfer-Encoding: 7bit
Date: Thu, 10 Oct 2013 20:03:45 +0330
From: "soroosh.azary" <[email protected]>
To: [email protected]
Subject: test18
Message-ID: <[email protected]>
X-Sender: [email protected]
User-Agent: Roundcube Webmail/0.9.4
sdfnlasdfaslkfdjhasf
发生了什么事？我该如何解决？
有趣的是，当我向 Yahoo 发送电子邮件时，它们首先进入垃圾邮件文件夹，然后进入收件箱，与 Gmail 的情况正好相反！
更新：
我已发送了一封电子邮件至[email protected]，结果如下：
==========================================================
Summary of Results
==========================================================
SPF check: pass
DomainKeys check: neutral
DKIM check: pass
Sender-ID check: pass
SpamAssassin check: ham
==========================================================
Details:
==========================================================
HELO hostname: azary.ir
Source IP: 198.23.143.195
mail-from: [email protected]
----------------------------------------------------------
SPF check details:
----------------------------------------------------------
Result: pass
ID(s) verified: [email protected]
DNS record(s):
azary.ir. SPF (no records)
azary.ir. 38400 IN TXT "v=spf1 a mx a:azary.ir ip4:198.23.143.195 ?all"
azary.ir. 38400 IN A 198.23.143.195
----------------------------------------------------------
DomainKeys check details:
----------------------------------------------------------
Result: neutral (message not signed)
ID(s) verified: [email protected]
DNS record(s):
----------------------------------------------------------
DKIM check details:
----------------------------------------------------------
Result: pass (matches From: [email protected])
ID(s) verified: header.d=azary.ir
Canonicalized Headers:
Date:'20'Thu,'20'10'20'Oct'20'2013'20'22:32:26'20'+0330'0D''0A'
From:'20'"soroosh.azary"'20'<[email protected]>'0D''0A'
To:'20'[email protected]'0D''0A'
Subject:'20'asdf'0D''0A'
DKIM-Signature:'20'v=1;'20'a=rsa-sha256;'20'c=simple/simple;'20'd=azary.ir;'20's=2013;'0D''0A'
'09't=1381431747;'20'bh=frcCV1k9oG9oKj3dpUqdJg1PxRT2RSN/XKdLCPjaYaY=;'0D''0A'
'09'h=Date:From:To:Subject:From;'0D''0A'
'09'b=
Canonicalized Body:
'0D''0A'
DNS record(s):
2013._domainkey.azary.ir. 38400 IN TXT "v=DKIM1; k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzmZ9hO/I4JfmRKOHP3ALQj15U/ECe/TiP88R2npL+B3jgrzTYQejG2uByYU9Eq1GlQTbqP4j+IKc4CnagBbOvGsnPfz/aUFSANd9qKmFPkFkwsWdhQ7mHQzDAXkOKrxvnhEc/ttFPnw5t4WZM+42n5mFojUMCchqsUvgj+jkpPbWYgA5tOLmRrgJ5Z7EbGvjU78TNAwrygyyFz2+VNHNsy1N008uoS6EO24xQZXc5u0HCzJEcK+TIC81t8E5W/2H0OY8KJEufl7kJorJgPlyFgu8Qq3ZEzzuywcQU+R70jJ+yofa0vPgq50n1vr8xpgYViquFi/LlcnJ4bapnPjjxwIDAQAB"
Public key used for verification: 2013._domainkey.azary.ir (2048 bits)
NOTE: DKIM checking has been performed based on the latest DKIM specs
(RFC 4871 or draft-ietf-dkim-base-10) and verification may fail for
older versions. If you are using Port25's PowerMTA, you need to use
version 3.2r11 or later to get a compatible version of DKIM.
----------------------------------------------------------
Sender-ID check details:
----------------------------------------------------------
Result: pass
ID(s) verified: [email protected]
DNS record(s):
azary.ir. SPF (no records)
azary.ir. 38400 IN TXT "v=spf1 a mx a:azary.ir ip4:198.23.143.195 ?all"
azary.ir. 38400 IN A 198.23.143.195
----------------------------------------------------------
SpamAssassin check details:
----------------------------------------------------------
SpamAssassin v3.3.1 (2010-03-16)
Result: ham (-2.7 points, 5.0 required)
pts rule name description
---- ---------------------- --------------------------------------------------
-0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain
-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%
[score: 0.0000]
-0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's
domain
0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid
-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature
据我所知，一切都很好。下一步是什么？
第二次更新：
我使用过http://www.appmaildev.com/en/dkim/和http://dkimcore.org/tools/再次检查。没有人报告任何问题。令人困惑。
第三次更新：
问题是不是可重现；我禁用了 DKIM 并向 Gmail 和 Yahoo 发送邮件，它们都进入了垃圾邮件文件夹。我再次启用了 DKIM 并向两者发送了邮件，只有 Yahoo 的邮件进入了收件箱。
我确信这与声誉有关。
答案1
看起来你的电子邮件进入了“灰名单”，请尝试在第一封信上加上 NOTSPAM，然后一切都会好起来。
Yahoo 还会检查邮件的最小长度。尽量将邮件长度控制在 5 个以上。