DeltaChat not filtering out global inbox

I guess the reason is that DeltaChat recently switched to Show Classic E-Mails = “All” from “No, chats only”, so all emails have been already downloaded from Inbox after the setup is done
[…]
Please also check Setting ‘No, chats only’ for ‘Show Classic E-Mails’ showing classic emails - #15 by Qwck , maybe it’s the same issue

Thanks for this insightful reply! It seems I’m suffering from exactly the same issue discussed in the thread you referred to. So I guess I’ll just have to wait until DeltaChat’s default settings revert to what (IMHO) is reasonable for a messenger app and it doesn’t pretend any more to be an email client…

Regarding your question on how I set up the new device: I’m honestly not really sure, but I guess I used a backup of the old device automatically created by Android. (Thinking it over, I might try to re-install DeltaChat on the new device and then try one of the setup methods you mentioned.)

Cheers –
tcrass