Frequently Asked Question

Getting the certificate

1. Go to “https://cm.harica.gr/Login”
2. Click “Academic Login”
3. Search for “ARDITI”
4. Select “ARDITI” and fill the login form with your ARDITI credentials
5. After logging in on the left side menu, go to “Email”
6. Select the option “Email-only” which should show as “Free”
7. Follow the instructions until you submit the request
8. The certificate should now show under “Ready Certificates”
9. On the “Ready Certificates” look for your S/MIME Product for your email and click on “Enroll your Certificate”
10. Select “Generate Certificate” and write a passphrase, and save that passphrase; you will need it later on
11. Download the certificate

Defining the certificate on Webmail

1. Go to mail.arditi.pt
2. Logging into your mail account
3. Go to settings, on the left side menu, click on “Mail” and on the top menu, click “IMAP ACCOUNTS”
4. Click on the pencil icon next to your IMAP account, and on the pop-up that opens up, click on “SECURITY”
5. Click on “CHOOSE PKCS12 CERTIFICATE”, select your certificate, and then fill in your certificate password, which is the passphrase you saved from before. Check the box “Digitally sign the message by default” and click ok
6. You are ready to go

Defining the certificate on Thunderbird

1. Open Thunderbird and go to account settings
2. Under the email you wish to add your certificate, select “End-To-End Encryption”
3. Under the “S/MIME” title, click on “Manage S/MIME Certificates”
4. Click on the import button and select the certificate from your computer that you just downloaded and fill in your passphrase from earlier
5. Under the “S/MIME” title, click on the select button and select the certificate you just imported
6. Under “A digital signature allows recipients to verify that the message was sent by you and its content was not changed. Encrypted messages are always signed by default.” check the box to “Sign unencrypted messages”

Defining the certificate on Mac Mail

1. Open the app “Keychain Access”
2. Go to the menu “File” and select “Import Items...”
3. Select your certificate and fill in the password with the passphrase from earlier
4. Your certificate was added. When writing your next message, make sure that near the “subject” field, there is an icon with a checkmark. If not, click on that icon and input your password, and it will work from now on

Defining the certificate in Outlook

1.  Open the Outlook app and go to settings
2. Click on “Accounts” and choose the IMAP account that you wish to add your certificate to
3. On “Security” and click “Configure”
4. Under “Digital Signing” on “Certificate”, click to choose your certificate and input your passphrase from earlier
5. Check the box “Always sign outgoing messages” and “Include my certificates in signed messages” and save