Secure messages with a digital ID in Outlook - Microsoft Support
Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, New Outlook for Windows
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Set up Outlook to use S/MIME encryption - Microsoft Support
Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019, Outlook Web App
工作或学校帐户双重验证的常见问题 - Microsoft 支持
注意: 此内容可帮助你使用工作或学校帐户。 如果在个人Microsoft帐户上遇到验证码问题,请参阅 验证码问题疑难解答。
Open encrypted and protected messages - Microsoft Support
Learn how to identify and open encrypted and protected emails no matter what email client you're using.
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2024, Outlook 2024 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook 2016 for Mac, Microsoft365.com, Outlook on the web, Outlook.com, Outlook for Mac 2011, Microsoft Office, New Outlook for Windows, Outlook for Android, Outlook for iOS, Outlook Web App
Send S/MIME or Microsoft Purview encrypted emails in Outlook
Send S/MIME or Microsoft Purview encrypted emails in Outlook using a work or school account with a qualified Microsoft 365 subscription.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Microsoft Office, New Outlook for Windows, Outlook Web App
如何在 Outlook 中添加和更改电子邮件签名 - Microsoft 支持
摘要 Email签名在业务通信中创造专业一致性,并确保收件人在每封邮件中都有你的联系信息。 在Outlook 中,可以设置多个签名, (内部与外部、个人与业务) 的不同用途,并选择是自动将其包含在新的电子邮件、答复还是转发中。 签名可以包括文本、链接、图片和图像 (,例如手写签名或徽标 ...
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Outlook on the web, Outlook.com, My Office for iPhone, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
设置安全密钥作为验证方法 - Microsoft 支持
可以使用安全密钥作为组织中的无密码登录方法。 安全密钥是一种物理设备,它与唯一 PIN 一起使用以登录到工作或学校帐户。 由于安全密钥要求你拥有物理设备和只有你知道的内容,因此它被视为比用户名和密码更强大的验证方法。 使用安全密钥作为无密码身份验证方法目前以公共预览版提供 ...
如何在 Outlook 中新增和更改電子郵件簽名 - Microsoft 支援服務
摘要 Email 簽名能在你的商業溝通中建立專業一致性,並確保收件人在每則訊息中都擁有你的聯絡資訊。 在Outlook中,你可以為不同用途設定多個簽名 (內部與外部、個人與商務) ,並選擇是否自動包含在新郵件、回覆或轉寄中。 你的簽名可以包含文字、連結、圖片和圖片 (,例如你的手寫簽名或標誌 ...
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Outlook on the web, Outlook.com, My Office for iPhone, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Phishing and suspicious behavior in Outlook - Microsoft Support
A phishing email is an email that appears legitimate but is actually an attempt to get your personal information or steal your money. Some deceptive emails appear to be from a safe sender but, in fact, have a "spoofed" source address to fool you. Here are some ways to deal with phishing and spoofing scams in Outlook.com. Spoof intelligence in Exchange Online Protection helps prevent phishing ...
Applies To:
Outlook 2024, Outlook 2024 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2016, Outlook on the web, Outlook.com, New Outlook for Windows