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In short, to digitally sign email messages you need your individual
email security certificate obtained from an authority; after getting a
certificate, you should properly installed it on Outlook Express. Getting individual email certificate from an authority
(skip this if you already have one)
You can obtain a certificate from several certificate
authorities; some of them issue free certificates while others offer
paid-for ones. We suggest you use
Comodo Group
to get a free certificate (valid for one year).
- Getting a certificate from Comodo authority:
- Open the link http://www.comodo.com/, then click "Email security
certificate"; on a new window click "Get your free email cert
now" (or you can just follow the link
https://secure.comodo.com/products/frontpage?area=SecureEmailCertificate)
- Fill up the required fields, then click "Agree and
continue"
- A little later you will receive an email from Comodo Group;
click "Click & Install Comodo Email Certificate" in the
body of the message - your email certificate will be installed
on Outlook Express automatically.
- Getting a certificate from the Outlook Express
- Start Outlook Express
- Select "Tools" -- "Options" -- "Security"
- Click "Get Digital ID..." and follow the
instructions.
Note, certificate obtained from Comodo Group as described above is
installed automatically. Installing your email security certificate
manually in the case you already have your own certificate and just want
to install it on Outlook Express
- Start Outlook Express
- Go under "Tools" -- "Options" -- "Security"
and there click "Digital IDs..."
- Click "Import" to start Certificate Import Wizard, then
follow the instructions to specify an appropriate certificate file
and settings. If you are not sure about the settings, defaults will
do just fine.
Digitally signing email messages
- Compose an email message as usual
- Click "Sign" button (if you cannot find the button,
use "Tools" -- "Sign" on the
menu) to digitally sign the
message
- If everything has been done correctly, a red ribbon
appears on the right of the "To" field
- Click "Send"
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