1. Go to the upper left corner and choose "Mail" and then "Preferences"
2. Go to the "Accounts" tab and press the plus-sign down to the left.
3. Choose Add Other Mail Account... and choose Continue
4. Enter your details. Remember that the password is not your regular Countermail-password. You need to access your IMAP-key, please see link below how to access your IMAP-key https://support.countermail.com/kb/faq.php?id=90
5. Incoming Mail Server Info Account Type: IMAP Mail Server: imap1.countermail.com User name: Your countermail-address Password. Your IMAP-Key
6. Outgoing Mail Server Info SMTP Server: imap1.countermail.com User name: Your countermail-address Password. Your IMAP-Key
