Great IT gurus of Zoho (because one needs to be...) - How do I *permanently* block senders via 1 click to cut the volume of crap falling into my (Inbox-)spam folder? Spam gets monitored there.

Wherewithal, is there a way to heighten the default spam-guard settings to an almighty nuclear MAX level to thereby service a traditionally used Inbox? I mean, instantly placing obvious spam in a traditionally used Spam folder? Is there... ?  Or do we have to get all physical and hands on with our mail and that there is no automation?

Cheers!