如何配置 SPF 和 DKIM 以防止邮件进入垃圾邮件文件夹

如何配置 SPF 和 DKIM 以防止邮件进入垃圾邮件文件夹
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使用 PHPMailer 创建邮件时,我的电子邮件被发送到收件人邮箱的垃圾邮件文件夹

有人告诉我需要正确配置 SPF 和 DKIM,我想我已经在 GoDaddy 账户上为 SPF 完成了这些配置 -@ v=spf1 a mx ptr include:secureserver.net ~all

还有人知道为什么我的邮件会被归为垃圾邮件吗?我是否遗漏了任何您可以发现的标头?

谢谢

感谢您的帮助

答案1

(重新发布我在SO上准备的答案)

您的 SPF 记录是v=spf1 a mx ptr include:secureserver.net ~all

这允许来自以下来源的发送:

  • a → studentclutter.com 主机 (23.229.191.2)
  • mx ➜ mail.studentclutter.com。(studentclutter.com 的 CNAME,因此也是 23.229.191.2)
  • ptr → 进行反向查找时,任何与您的域名匹配的 IP。由于 184.168.200.138 是 p3nlsmtpcp01-01.prod.phx3.secureserver.net,因此它与您的域名不匹配。
  • include:secureserver.net → 包括 secureserver.net 电子邮件策略,

v = spf1 ip4:207.200.21.144/28 ip4:12.151.77.31 ip4:69.64.33.132 ip4:68.233.77.16 ip4:184.168.131.0/24 ip4:173.201.192.0/24 ip4:182.50.132.0/24 ip4:170.146.0.0/16 ip4:174.128.1.0/24 ip4:173.201.193.0/24 包括:spf-ss1.domaincontrol.com -all

依次包括spf-ss1.domaincontrol.com:

v = spf1 ip4:174.128.7.0/24 ip4:206.252.132.65 ip4:24.75.14.201 ip4:144.202.243.25 ip4:68.232.128.0/19 ip4:216.55.155.13 ip4:216.55.162.41 ip4:195.246.112.0/24 包括:spf-ss2.domaincontrol.com 包括:spf.messaging.microsoft.com -all

和 spf.messaging.microsoft.com

v=spf1 ptr:protection.outlook.com ptr:messaging.microsoft.com ptr:o365filtering.com -all

发送 IP 184.168.200.138 不在上述任何范围内。因此 SPF 验证失败。

奇怪的是 184.168.200.138 没有列在 secureserver.net spf 上。这可能是一个错误,或者他们可能不打算让用户将他们的策略包含在他们的域中,因此只列出他们自己的电子邮件发送 IP,而不是用户服务器。

如何让 spf 通过?最简单的方法是明确列出发送 IP:

IP4:184.168.200.138

但是,考虑到你的服务器 IP 可能会意外更改,你可能还想允许所有 secureserver.net 主机

ptr:secureserver.net

总而言之,我将使用以下策略:

v=spf1 a mx ip4:184.168.200.138 ptr:secureserver.net ~all

我已经删除了ptr(因为您似乎没有可以设置反向 DNS 的专用 IP)和不起作用的 include:secureserver.net。

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