@tech1 Sometimes it helps to take a step back and evaluate what you're really trying to do instead of look for a product for what is already in place. Liquid mail claims to filter, but clearly it's not working. o365 and gmail do a great job, so why not consider them? It would probably be better to filter it before it hits the client.
And for a single user.... the cost of looking at another option is too much. Office 365 is $4/mo... that's $48/year. That's hosting, storage, support, everything. And that's a top end, luxury level service. It only gets cheaper from there.