如果要确保所有收件人都可以打开数字签名的邮件，即使他们没有 S/MIME 邮件应用程序并且无法验证证书，也可以以 明文形式发送 数字签名的邮件。 如果要允许收件人向你发送加密邮件，请将 我的证书包含在已签名邮件中，请确保已选择签名和加密证书。

As used here, “Android user” means a user using Xbox, Game Pass, Xbox Family Settings and Xbox Events for Android, and “iOS/iPadOS user” means a user using Xbox, Game Pass, Xbox Family Settings and Xbox Events for iOS or iPadOS.

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A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

在 iOS 设备上安装 Authenticator 扫描 QR 码或从 Apple 应用商店下载并安装 Authenticator。 重要: Microsoft不再支持超过一年的 Authenticator 版本。 始终使设备保持最新状态。

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证书通过电子邮件移动到设备。 你需要导出一个受密码保护的 .pfx 文件，并以电子邮件形式发送给自己。 然后点击该 .pfx 文件，将其安装到设备/Outlook mobile 上。 下图显示了 iOS 中手动证书传递的工作原理。

Find out how to submit a request for a refund for a purchase of digital Xbox content.

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