我有几个 Google Apps For Your Domain 客户端，每个客户端都有一个 SPF 记录，例如：
主机名：
@
文本数据：
v=spf1 include:_spf.google.com ~all
其中许多已经设置了几个月，更不用说典型的 48 小时 DNS 刷新期了。发送电子邮件至：
check-auth@verifier.port25.com
我从所有域中取回了 SPF 通行证。然而 - 当发送电子邮件至：
spf-test@openspf.org
我收到如下邮件传递错误：
Delivery to the following recipient failed permanently:
spf-test@openspf.org
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain.
We recommend contacting the other email provider for further information about the
cause of this error. The error that the other server returned was: 550 550 5.7.1
<spf-test@openspf.org>: Recipient address rejected: SPF Tests: Mail-From
Result="pass": Mail From="xxxxx@xxxxxx.com" HELO name="mail-yi0-f45.google.com"
HELO Result="none" Remote IP="209.85.218.45" (state 14).
----- Original message -----
Received: by 10.150.204.10 with SMTP id b10mr1415096ybg.340.1296170820591;
Thu, 27 Jan 2011 15:27:00 -0800 (PST)
MIME-Version: 1.0
Received: by 10.151.51.18 with HTTP; Thu, 27 Jan 2011 15:26:40 -0800 (PST)
From: Chris Moschini <xxxxx@xxxxxx.com>
Date: Thu, 27 Jan 2011 15:26:40 -0800
Message-ID: <AANLkTiknfTV9cU5v1tRC39chacqxz71Ch366eHEoxhX7@mail.gmail.com>
Subject: Test4
To: spf-test@openspf.org
Content-Type: multipart/alternative; boundary=000e0cd2e71a546250049adc49bb