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#ANDROID MESSAGES ONLINE MANUAL#The following image shows how manual certificate delivery works in iOS.Ī user can export their own certificate and mail it to themselves using Outlook. #ANDROID MESSAGES ONLINE FOR ANDROID#Outlook for iOS and Outlook for Android both support manual certificate delivery, which is when the certificate is emailed to the user and the user taps on the certificate attachment within the app to initiate the certificate's installation. The S/MIME certificate used by Outlook for iOS and Android is calculated by comparing the user's primary SMTP address as defined in the account profile with the certificate's subject value or the subject alternative name value if these do not match, then Outlook for iOS and Android will report that a certificate is not available (see Figure 7) and will not allow the user to sign and/or encrypt messages. Outlook for iOS and Android leverages the user's primary SMTP address for mail flow activities, which is configured during account profile setup. If Exchange Online fails to locate a trusted root certificate or fails to contact the certificate revocation list for the certificate authority, that certificate is considered invalid and is not trusted. If Exchange Online locates a trusted root certificate and can query the certificate revocation list for the certificate authority, the digital certificate's chain for that digital certificate is considered valid and trusted and can be used. Intermediate certificates can also be included with digitally signed email messages. This verification is done by obtaining the intermediate certificates through the authority information access attribute in the certificate until a trusted root certificate is located. Exchange Online validates the certificate by validating each certificate in the certificate chain until it reaches a trusted root certificate. Trust verification is performed on all digital certificates. In manual and automated certificate delivery solutions, it's expected that the certificate's trusted root chain is available and discoverable within your Exchange Online tenant's virtual certificate collection. Publishing the certificate revocation list to the internet.Setting up the virtual certificate collection.S/MIME prerequisitesĮnsure S/MIME has been properly configured in Exchange Online by following the steps outlined in Configure S/MIME in Exchange Online. #ANDROID MESSAGES ONLINE HOW TO#This article describes how to configure Exchange Online for S/MIME using Outlook for iOS and Android, and how to use S/MIME in Outlook for iOS and Android. After you have completed those steps, you can deploy S/MIME certificates to Outlook for iOS and Android using the following methods: ![]() ![]() To leverage S/MIME in Outlook for iOS and Android, you need to configure specific S/MIME prerequisite in Exchange Online. For more information, see S/MIME for message signing and encryption in Exchange Online. S/MIME (Secure/Multipurpose Internet Mail Extensions) is a widely accepted protocol for sending digitally signed and encrypted messages. ![]()
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