SmarterMail is a self-hosted server for email, calendars, collaboration, groupware and group chat. The software runs on Windows Server, Linux or in a Docker container and is aimed at small businesses, teams and larger organisations. It comes in several editions, including an Enterprise edition with LDAP and Active Directory authentication and archiving, and a High Availability edition for clustering, failover and scaling. The vendor's product pages do not describe a cloud version operated by SmarterTools.
According to a third-party directory, SmarterTools Inc. is headquartered in Phoenix, Arizona, in the United States, and was founded in 2003. The vendor's website names no parent company and no open-source licence. Because SmarterMail runs on your own infrastructure, you decide where mail data is stored and how long it is kept. For a European organisation the vendor is therefore American, but control over data location rests with your own operations. Exposure to foreign authorities depends mainly on the hosting environment you choose.