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smimeguide
Table of Contents
Setting up S/MIME
Obtaining a certificate
Actalis
- Apply for a free certificate at Actalis.
- Enter your mail and wait for the verification code to arrive (check the spam folder)
- Enter the verification code.
- The certificate will now be created.
- Take note of the password in the browser! It's used to decrypt the PKCS12 container.
- Download und unpack the attachment from Actalis's mail.
Client Configuration
Mail.app (macOS)
- Open the pfx file and unlock with password to import it into Keychain.
- Select the certificate in the keychain. Right-click and select New Identity Preference.
- Enter the valid mail address into Location or Email Adress, then click Add.
- The certificate will be used when you send a new mail using that account in Mail.app. You'll be asked for the keychain password. Enter it and click Always Allow.
Exporting to iOS devices
- Download and run Apple Configurator.
- Create a New profile
- Enter a name for the profile.
- Select Certificates from the left bar, then “Configure”
- Select (multiple) pfx/PKCS12 files to include in the profile.
- (Optionally) set the PKCS12 passwords
- Save and export to devices (e.g. via AirPlay)
- On the device, go to Settings and accept the profile
- In the Settings app, go to Mail/Accounts
- Edit all the mailboxes to which you want to assign certificates.
- Under Account/Advanced
- Activate the Sign option and select the certificate
- Tap Encrypt by Default and select the certificate again. Leave Encrypt by Default unchecked!
smimeguide.txt · Last modified: by wolfo