Generally, MailStore Server is available to businesses with up to 2,000 users. We offer a Starter Kit including five user licenses for new installations. For additional user licenses, the minimum order quantity is five user licenses. All new orders include one year’s Standard Update & Support Service. For additional user purchases, the end of the contract period of the Update & Support Service will always match the end date of the contract period for the existing user licenses. You will find more information on user licenses in our FAQs.