Have a look here:
https://www.swisscom.ch/de/privatkunden/hilfe/e-mail/einrichten/swisscom-server-information.html
It should be said, however, that Outlook for Android is very problematic
….keep on rockin'
apboz
Very reliable email app for Android and a Bluewin mail account is set up in 30 seconds:
https://play.google.com/store/search?q=thunderbird&c=apps&hl=fr
….keep on rockin'