Client Inbox Sorter

Client Inbox Sorter keeps each client's email together in Gmail. Give it a list of your clients with their email domains or addresses, and it adds a label like Clients/Acme Corp to every conversation where that client is the sender or a recipient. It only adds labels, so nothing is archived, marked read, moved to trash or deleted. If an email involves two clients, it gets both labels, and shared providers like gmail.com are matched by full address only.