For Zoho mail online on PC in web browser:

I had forwarding enabled in section "Mail accounts / Forwards", and I also have some filters that send emails from some unwanted senders to Archive. But it doesn't work as intended, it forwards everything (obviously I don't want to see the ones with filter), seems forward has a higher priority.

So I tried to add a new filter "No conditions. All incoming emails" with action = Forward. But I'm not allowed to save this filter, I get the message "Email Forwarding has already been configured for this email address"

So I disabled forwarding in section "Mail accounts / Forwards" (I am not allowed to delete the e-mail address there though) and tried again to add a new filter "No conditions...". But the same message.