当您打开Windows 10 Mail 应用程序^{(Windows 10 Mail app)}或Outlook以配置电子邮件安全^{(Email Security)}时，您可能会收到错误消息 —尝试更改某些设置时，此设置无法应用于您的任何帐户。^{(This setting can’t be applied to any of your accounts )}在这篇文章中，我们将分享它的含义以及当您在Windows 10 ^{(Windows 10)} Mail App上收到它时您可以做些什么。

此设置不能应用于您的任何帐户

首先你应该知道这不是一个错误。这是一条明确的信息，这些设置不适用于^{(not available for the accounts)}您在Windows 10 邮件^(Mail)应用程序或Outlook上的帐户。

为什么您的电子邮件帐户无法使用电子邮件安全功能？^(Email)

电子邮件安全部分允许您更改 S/MIME Digital signature and Encryption的^(a)选项。这些选项仅适用于支持这些功能的帐户类型。您可以通过转到Settings > Email安全”进行配置。但是，如果您没有看到任何选项，而只看到一条消息“此设置无法应用于您的任何帐户。”，那么这是因为Windows 10邮件^(Mail)中配置的帐户都不支持它。

如果您的帐户会支持它，那么这就是它的外观。在这里，您可以选择始终使用S/MIME签名，自动选择证书并为所有电子邮件打开加密^(Encryption)。

也就是说，如果它已经为您启用，但您无法在Windows 10 Mail中看到它，那么您几乎没有选择。您可以尝试重新安装Windows 10 Mail应用程序或检查您是否安装了证书。如果启用，您可以根据上图中显示的选项进行配置。

^{(Pre-requisite)}S/MIME Digital签名和加密的先决条件

如果您怀疑Windows 10 Mail是否支持它，那么是的，它支持。但是，仅对Exchange帐户启用S/MIME您不能对Outlook.com等个人帐户使用^{(Outlook.com)}S/MIME签名和加密

其次，您应该在设备上安装了有效的个人信息交换^{(Personal Information Exchange)}( PFX ) 证书。要获得这些证书，最好联系您的 IT 管理员。他们应该能够在Configuration Manager或Microsoft Intune中创建^{(Microsoft Intune)}PFX证书配置文件。

加密电子邮件^{(Encrypt Email Messages)}是什么意思 ？

S/MIME或Secure/Multipurpose Internet Mail Extensions是一种广泛使用和接受的协议，用于发送经过数字签名和加密的消息。许多企业确保使用S/MIME加密他们的电子邮件，或者如果您使用的是Office 365，那么您就有了信息权限管理^{(Information Rights Management)}。

如果您使用的是Outlook，那么它在信任中心^{(Trust Center)}的选项中可用。您可以导入证书并选择如何加密电子邮件。

我希望这篇文章能够帮助您了解为什么您收到错误此设置不能应用于您的任何帐户Windows 10邮件^(Mail)应用程序错误^(Error)。如果您是出于好奇而试图弄清楚，那么我希望您能理解。

但是，如果您有一个启用了S/MIMEExchange帐户，请检查先决条件。

This setting can’t be applied to any of your accounts - Outlook or Mail app

When you оpen the Windows 10 Mail app or Outlook to configure Email Security, you may receive an error — This setting can’t be applied to any of your accounts when trying to change some settings. In this post, we are sharing what it means and what you can do about it when you receive it on Windows 10 Mail App.

This setting can’t be applied to any of your accounts

The first thing you should know that it is not an error. It’s a clear message that the settings are not available for the accounts you have on Windows 10 Mail app or Outlook.

Why is Email security not available for your email account?

The Email security section allows you to change options for S/MIME Digital signature and Encryption. These options are only available for account types that support these features. You can configure by going to Settings > Email security. However, if you do not see any option but only a message which says This setting can’t be applied to any of your accounts., then its because none of the accounts configured in Windows 10 Mail support it.

If your account would have supported it, then this is how it will look. Here you can choose to always sign with S/MIME, automatically select certificates and turn on Encryption for all the emails.

That said if it already on for you, but you are not able to see it in Windows 10 Mail, then you have few options. You can try to reinstall Windows 10 Mail app or check if you have the certificates installed. If it is enabled, you can configure according to options shown in the above image.

Pre-requisite for S/MIME Digital signature and Encryption

If you doubt that if Windows 10 Mail supports it, then yes, it does. However, S/MIME is enabled only for Exchange accounts. You can’t use S/MIME signing and encryption with a personal account such as Outlook.com

Second, you should have a valid Personal Information Exchange (PFX) certificates are installed on the device. To get these certificates, it is best to contact your IT admin. They should be able to create PFX certificate profiles in Configuration Manager or Microsoft Intune.

What do you mean by Encrypt Email Messages?

S/MIME or Secure/Multipurpose Internet Mail Extensions is a widely used and accepted protocol for sending digitally signed and encrypted messages. Many businesses make sure to encrypt their Emails using S/MIME, or if you are using Office 365, then you have Information Rights Management.

If you are using Outlook, then it is available in the Trust Center in options. You can import certificates and choose how to encrypt emails.

I hope the post was able to help you understand why you had received the error This setting can’t be applied to any of your accounts Error for Windows 10 Mail app. If you were trying to figure out because of curiosity, then I hope you understand it.

However, if you have an Exchange accounts for which the S/MIME is enabled, then check with the pre-requisites.

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