Digital signatures and certificates - Microsoft Support
Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Visio Plan 2, Excel 2024, PowerPoint 2024, Access 2024, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Visio Professional 2016, Visio Standard 2016
建立和管理電子簽署要求 - Microsoft 支援服務
當您需要文件簽名時,無需向人員發送多份草稿或來回電子郵件。 現在,您可以在電子簽署請求中附加文件,並直接在桌面或行動裝置上的「核准」中傳送文件。
Secure messages with a digital ID in Outlook - Microsoft Support
A digital signature attached to an email message offers another layer of security by providing assurance to the recipient that you—not an imposter—signed the contents of the email message. Your digital signature, which includes your certificate and public key, originates from your digital ID. And that digital ID serves as your unique digital mark and signals the recipient that the content ...
Applies To: Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, New Outlook for Windows
新增或移除 Microsoft 365 檔案的數位簽名 - Microsoft 支援服務
將簽名欄插入 Microsoft 365 檔案時,作者可以指定預定簽章者的相關信息,以及簽章者的指示。 當檔案的電子副本傳送至預定簽章者時,簽章者會看見此簽名欄和要求其簽章的通知。
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2024, PowerPoint 2024, Excel 2021, Word 2021, PowerPoint 2021, Excel 2019, Word 2019, PowerPoint 2019, Excel 2016, Word 2016, PowerPoint 2016
在 Outlook 中建立並新增電子郵件簽名 - Microsoft Support
如何建立或編輯您的 Outlook 電子郵件簽名。 請附上簽名、文字、圖片、電子名片及標誌。
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
驗證簽章郵件上的數位簽章 - Microsoft 支援服務
如果數位簽名無效,原因可能很多。 例如,寄件者的 憑證 可能已過期、可能已被 憑證授權單位 (CA)撤銷,或驗證憑證的伺服器可能無法使用。
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, Outlook.com, New Outlook for Windows, Outlook for Android, Outlook for iOS, Outlook Web App
在 Outlook 中使用數位標識保護郵件 - Microsoft 支援服務
附加到電子郵件訊息的數位簽名可提供另一層安全性,方法是向收件者保證您簽署電子郵件訊息的內容,而非冒名頂替者。
Applies To: Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Microsoft 365 Copilot app for Android, New Outlook for Windows
建立電子郵件簽名 - Microsoft 支援服務
建立可自動新增至電子郵件訊息的自訂簽名。 電子郵件簽名能夠包括文字、影像、電子名片、標誌,或甚至您的手寫簽名。
Applies To: Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Microsoft365.com, My Office for iPhone
變更電子郵件簽名 - Microsoft 支援服務
如果您使用的是 全新的 Outlook,如需電子郵件簽名的詳細資訊,或如果您尚未建立簽名,請參閱 在郵件中新增簽名。 選取 [郵件 > 簽名] > [檔案 > 選項]。 選取您要編輯的簽名,然後在 [ 編輯簽名 ] 方塊中進行變更。 完成後,選取 [儲存] > [確定]。
Applies To: Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016
數位簽章與憑證 - Microsoft 支援服務
越來越多人員與組織開始改用數位文件,而不使用紙本文件來進行日常交易。 藉由減少紙本文件的使用,我們可以保護環境並節省地球的資源。 數位簽章可確保數位文件的有效性和真實性,藉以支援這項改變。 如需詳細資訊,請參閱 在 Office 檔案中新增或移除數位簽章。 您想做什麼? 何謂數位 ...
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Visio Plan 2, Excel 2024, PowerPoint 2024, Access 2024, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Visio Professional 2016, Visio Standard 2016