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We have a subscription-based web app that, once a client launches, sends an invitation to each of the client's users to join. One issue we are having relates to users of Earthlink in particular - we monitor the reply-to email account on these invitations, and see a large number of the generic:

I apologize for this automatic reply to your email.

To control spam, I now allow incoming messages only from senders I have approved beforehand.

If you would like to be added to my list of approved senders, please fill out the short request form (see link below). Once I approve you, I will receive your original message in my inbox. You do not need to resend your message. I apologize for this one-time inconvenience.

Click the link below to fill out the request

We'd obviously like to ensure delivery to these users, but don't want to have to go in and manually request access as an approved sender. I am sure the TL;DR solution to this is that there is nothing we can do, which we cna live with, but I wondered how others handle this situation, whether via a technical solution or otherwise.

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根据我自己的经验，对于上述表格总是包含验证码的情况，您无法自动执行任何操作。至少这是我的经验，不是使用 Earthlink，而是使用其他提供商。

于 2013-11-24T23:43:43.173 回答
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我猜您可以在用户提交表单时检测到 Earthlink 电子邮件地址，并在用户自己填写 Earthlink 表单时显示一个 iframe。无论如何都不是一个完美的解决方案（主要是因为并非所有 Earthlink 用户都会启用此过滤），但可能与它一样好。当然，此解决方案依赖于知道表单的正确 URL，如果表单 URL 包含仅在自动回复中提供的某种会话密钥或帐户 ID，这可能是不可能的。

编辑：查看了 Earthlink 站点，似乎用户必须登录到 WebMail 才能访问表单。您可能会得到的最好的方法是将它们放在Earthlink Webmail 登录表单上，并附上有关如何将您的域列入白名单的明确说明（在此处找到）。

于 2013-11-25T06:12:55.010 回答