Hello casper181,
This is expected behavior in many Exchange/Outlook setups.
Outlook contact “Categories” do not exist in the same way in Android Contacts. When Aqua Mail syncs Exchange contacts to the Android contacts database, those categories may be converted by Android/Samsung into contact “Groups”.
If you do not want this, you can either hide those groups in Samsung Contacts, or disable contact sync for that Exchange account in Aqua Mail.
In Aqua Mail, open the account settings for the Exchange account and turn off contact synchronization. Then refresh or resync contacts.
If you still want the contacts synced but without groups/categories, there may not be a reliable way to keep only the contacts while stripping Outlook categories, because Samsung Contacts controls how those synced fields are displayed.
