自定义电子邮件标题可以触发垃圾邮件过滤器吗? [英] Can custom email headers trigger spam filters?

问题描述

我们做很多邮件，我们使用Sendgrid为它提供独特的参数和类别.但是对于存储，存档，过滤和搜索功能，我也想给他们其他自定义标头，例如该数组的json格式

We do a lot of mailing and we use Sendgrid to give it unique arguments and categories. But for storage, archiving, filtering and search capabilities, I would like to give them some other custom headers too, something like a json format of this array

array('user' => 300, 'item' => 8842, 'country' => 'Croatia');

现在，这种自定义标题可能会损害我们电子邮件的通过率吗?换句话说，由于具有这样的自定义标头，我们的电子邮件是否有可能触发垃圾邮件过滤器?

Now, is it possible for such custom headers to hurt the passthrough rate of our emails? In other words, is there a chance of our emails triggering spam filters due to having such custom headers?

推荐答案

用户定义的标头的约定是在其前添加X-作为前缀.例如

The convention for user defined headers is to prefix them with an X-. For example

X-my-custom-header: foo

长期以来，这一直是电子邮件规范的一部分(请参阅: http://tools .ietf.org/html/rfc822 )，并且永远不会损害您的交付能力.

This has been a part of the email spec for a long time (see: http://tools.ietf.org/html/rfc822) and shouldn't ever hurt your deliverability.

相关问题:自定义标头mail()和垃圾邮件得分

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