1. Open up Gmail and go to settings to add a new Account. Choose "Other"
2. Type in your email address
3. Choose IMAP in the following settings
4. Type in the Incoming server information, with your Email, Password and secure.swissmail.org as Server
5. Type in the outgoing server information, with your Email, Password and secure.swissmail.org and choose "require sign-in"
After that the account setup is completed