假设您的 Postfix 位于 mail.onlythebible.com。该名称的 IP（DNS 中的 A 资源记录）是 173.255.234.40。到目前为止，一切都很好。 但有一种相反的方法可以获取 IP 背后的名称。这是 DNS 中的 PTR 资源记录。在您的情况下，该值设置为 li244-40.members.linode.com。正如您所看到的，名称不匹配：mail.onlythebible.com != li244-40.members.linode.com 这会导致奇怪的错误消息。
解决方案是将 DNS 中的 PTR 设置为 mail.onlythebible.com。如何（或是否）执行此操作取决于您的托管提供商。您需要能够编辑反向 DNS 地址的 DNS 配置（不是域 onlythebible.com 的 DNS 配置）。请询问您的 VPS 提供商如何设置 PTR。
This is not a problem of your Postfix setup.
This is a problem of your DNS setup.
Let's assume that your Postfix is at mail.onlythebible.com. The IP to that name (the A Resource Record in DNS) is 173.255.234.40. So far so good. But there is a reverse way to get the name behind an IP. This is the PTR Resource Record in DNS. In your case this is set to li244-40.members.linode.com. And as you can see the names do not match: mail.onlythebible.com != li244-40.members.linode.com And this causes the weired error message.
The solution is to set the PTR in the DNS to mail.onlythebible.com. How (or if) you can do this depends on your hosting provider. You need to be able to edit the DNS configuration for the Reverse DNS Address (not the DNS configuration of the domain onlythebible.com). Please ask your VPS provider on how to set the PTR.
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这不是您的 Postfix 设置的问题。
这是你的DNS设置的问题。
假设您的 Postfix 位于 mail.onlythebible.com。该名称的 IP（DNS 中的 A 资源记录）是 173.255.234.40。到目前为止，一切都很好。
但有一种相反的方法可以获取 IP 背后的名称。这是 DNS 中的 PTR 资源记录。在您的情况下，该值设置为 li244-40.members.linode.com。正如您所看到的，名称不匹配：
mail.onlythebible.com != li244-40.members.linode.com这会导致奇怪的错误消息。
解决方案是将 DNS 中的 PTR 设置为 mail.onlythebible.com。如何（或是否）执行此操作取决于您的托管提供商。您需要能够编辑反向 DNS 地址的 DNS 配置（不是域 onlythebible.com 的 DNS 配置）。请询问您的 VPS 提供商如何设置 PTR。
This is not a problem of your Postfix setup.
This is a problem of your DNS setup.
Let's assume that your Postfix is at mail.onlythebible.com. The IP to that name (the A Resource Record in DNS) is 173.255.234.40. So far so good.
But there is a reverse way to get the name behind an IP. This is the PTR Resource Record in DNS. In your case this is set to li244-40.members.linode.com. And as you can see the names do not match:
mail.onlythebible.com != li244-40.members.linode.comAnd this causes the weired error message.
The solution is to set the PTR in the DNS to mail.onlythebible.com. How (or if) you can do this depends on your hosting provider. You need to be able to edit the DNS configuration for the Reverse DNS Address (not the DNS configuration of the domain onlythebible.com). Please ask your VPS provider on how to set the PTR.