The "Sign" and "Encrypt" options are off by default. On the "Account" screen, tap Advanced Settings, then switch the "S/MIME" setting on.Tap the Account button with your IU email address.Select the email account associated with your certificate.Earlier versions: Go to Settings > Mail > Accounts.iOS 11: Go to Settings > Accounts & Passwords.
iOS 12 and 13: Go to Settings > Password & Accounts.iOS 14: Go to Settings > Mail > Accounts.Should you send a message using the share to mail function in a different app, such as Photos, it will not be signed. You will only be able to digitally sign messages you send directly from the Mail app.
You also have the option to send encrypted email. Use client certificates in iOS MailĮnabling these options will allow you to digitally sign all email sent from your device. If it's not, you may not have successfully installed the "InCommon Standard Assurance Client CA" certificate above. The certificate should have your name, and it should be checked as "Verified". To check your profile, open the Settings app, then tap General, followed by Profiles. When prompted, enter the passphrase ("PIN") created when exporting the certificate.You may see a warning that the profile is not signed, but tap Install and then Install again.On the "Install Profile" screen, tap Install.Tap the attached file to start the installation. On your iOS device, open the email message.