pfx bundle from a certificate authority, they must have also given you the password.
#How to add a signature in outlook app iphone install
Open the message attachment in the Outlook app and tap Install Certificate.Įnter the password associated with the S/MIME certificate bundle when prompted. Install the Certificate in the Outlook iOS App
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pfx file, the private key should be encrypted with a password, so it is usually considered safe to send the certificate bundle by email. Transfer the S/MIME Certificate to Your iPhoneĮmail the certificate bundle to an email account installed in the Outlook app on your iPhone. pfx) if they generated the certificate for you or as a PKCS #7 (.p7b) file if you created the private key on your own computer and submitted a Certificate Signing Request (CSR) to the CA. You can buy a S/MIME certificate from a Certificate Authority (CA) or through a retailer, or get one free of charge from Actalis, an Italian CA.Ĭertificate authorities provide S/MIME certificate bundles either as a PKCS #12 file (.p12 or. The sender of a message usually also signs it with their own S/MIME certificate (private key), which allows the recipient to authenticate the sender.
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S/MIME allows end-to-end encryption: the sender encrypts the email in a way that it can only be decrypted in the recipient's inbox, ensuring only the intended person can read it.
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The Outlook app on the recipient's iPhone can then decrypt the message with the private key installed app. The Secure/Multipurpose Internet Mail Extensions (S/MIME) is an internet standard that allows the sender of an email to protect the confidentiality of the message by encrypting its content with the public key contained in the recipient's S/MIME certificate. This document provides step-by-step instructions to install a S/MIME certificate and set up S/MIME in the Microsoft Outlook app on your iPhone.