Unfortunately Postfix is not one of the mail servers that suppose SPF natively, but there are some extensions and patches for this, which can be found at http://www.openspf.org/Implementations.
While a java library is available for SPF, I'm not aware of any plugins or patches that are currently using it.
I attached the DKIM and SenderID milters available from Postfix add-ons list with my Postfix e-mail server.
Since these milters can be configured to add e-mail headers in the received mails about their results, so I wrote a custom mail-filter using jilter api (java mail filter api), parsed the mail headers and hence I was able to determine and act about the authentication results of SPF and SenderID according to my custom logic.
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不幸的是，Postfix 不是本地支持 SPF 的邮件服务器之一，但是有一些扩展和补丁，可以在 http://www.openspf.org/Implementations。
虽然有一个可用于 SPF 的 Java 库，但我不知道当前有任何插件或补丁正在使用它。
Unfortunately Postfix is not one of the mail servers that suppose SPF natively, but there are some extensions and patches for this, which can be found at http://www.openspf.org/Implementations.
While a java library is available for SPF, I'm not aware of any plugins or patches that are currently using it.
我遵循的解决方案如下：
我将 Postfix 附加组件列表中提供的 DKIM 和 SenderID milters 附加到我的 Postfix 电子邮件服务器。
由于这些 milters 可以配置为在收到的邮件中添加有关其结果的电子邮件标头，因此我使用 jilter api（java 邮件过滤器 api）编写了一个自定义邮件过滤器，解析了邮件标头，因此我能够确定和根据我自定义的逻辑处理SPF和SenderID的认证结果。
The solution I followed is as:
I attached the DKIM and SenderID milters available from Postfix add-ons list with my Postfix e-mail server.
Since these milters can be configured to add e-mail headers in the received mails about their results, so I wrote a custom mail-filter using jilter api (java mail filter api), parsed the mail headers and hence I was able to determine and act about the authentication results of SPF and SenderID according to my custom logic.