Obtain a digital certificate and create a digital signature
If you do not want to purchase a digital certificate from a third-party certificate authority (CA), or if you want to digitally sign your document immediately, you can create your own digital certificate.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word 2024, Word 2021, Word 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Office 2016
Digital signatures and certificates - Microsoft Support
When you send a digitally-signed macro or document, you also send your certificate and public key. Certificates are issued by a certification authority, and like a driver’s license, can be revoked.
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
How are certificates going to be moved to the device?
Certificates are moved to the device via email. You will need to export a password-protected .pfx file, and email it to yourself. Then tap on that .pfx file to install it onto the device/Outlook mobile. The following image shows how manual certificate delivery works in iOS.
Applies To:
Outlook for Android, Outlook for iOS
My company uses Microsoft Intune for delivering my certificates. How do ...
Microsoft Intune delivers certificates automatically to Outlook for iOS. To obtain or renew your certificates, please follow the instructions in the notification or email you received from Company Portal.
Applies To:
Outlook for Android, Outlook for iOS
View certificates - Microsoft Support
To see details about the certificate, click View Certificate. The email encryption certificate details for the messages that you send or receive can be reviewed.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
Secure messages with a digital ID in Outlook - Microsoft Support
Before you can import a digital ID (Certificates), you need to already have the digital ID and know where it is on your device. Use the following instructions to either import or export a digital ID in new Outlook.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, New Outlook for Windows
Where are the certificates stored on the device?
On iOS, certificates are stored in the publisher keychain. On Android, they are stored in the system keychain.
Applies To:
Outlook for Android, Outlook for iOS
How do I install Certificates on my Device? - Microsoft Support
Certificates can be obtained by exporting a password-protected .pfx file from Microsoft Outlook and emailing these to yourself. Tap on the .pfx attachment to begin the certificate installation. You can contact your IT help desk for assistance.
Applies To:
Outlook for Android, Outlook for iOS
KB5003341: Issues you might encounter when SHA-1 Trusted Root ...
Follow these steps to verify your applications are SHA-2 signed: Find the executable (EXE) file in File Explorer for the applications that you want to examine. Right-click the EXE file and select Properties. Select the Digital Signatures tab in the Properties dialog box.
Can I export my own certificate and email it to myself?
Can I export my own certificate and email it to myself? Yes. For more information, see Secure messages with a digital signature in Outlook . Was this information helpful?
Applies To:
Outlook for Android, Outlook for iOS