请注意：如果你正在使用GLR和“双重网络连接板块”，在NAM安装程序的可选附件对话框里要确认选择了它们。

Please note: If you are using the GLR or dual-networking puzzle pieces, make sure to select them in the optional components dialogue of the NAM installer.

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通信协议的上面是可选的文件附件和安全层，用MIME实现。

Above the communication protocols are the optional file attachment and security layers that are implemented with MIME.

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Web链接支持支持对于仅附件存档方法Web链接是一种可选链接。

Web link support Supported. Web link is an optional link you can have for attachment only archive method.

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