ClickSend Online Post Service is a cloud or virtual mailbox service where users can send letters, statements, or marketing postcards from any computer or mobile device. The platform provides a fast and cost-effective solution for printing and mailing invoices, statements, marketing postcards, invitations and more. With ClickSend, users can print documents from any PC or Mac and even from their mobile or tablet. It's a cost effective way to print and mail regular documents, invoices, statements or marketing postcards.