Knowmail, a company building a Personalized Artificial Intelligence platform to help employees communicate and collaborate better, announced it closed a new $3.5 million investment led by CE Ventures with managing partner Tayman Kan also joining the board. This round also includes existing shareholders AfterDox, Plus Ventures, 2B Angels, INE Ventures and notable private investors. The additional funding will be utilized to continue building out Knowmail’s functionality and expand its customer base globally.