Now exit ftp. Email list servers List servers copy all messages sent to them to all the subscribers. Anyone with an email address can join. Some lists are closed lists, in which access is restricted to a particular set of users. Membership is at the discretion of the list controller.
Open lists exist which can be joined by any user.
There are list servers covering a whole range of scientific, technical, humanities, social and business topics. In the UK, Newcastle University operates a system called mailbase. This system can supply you with a list of all UK list servers. The system is automatic and responds to requests sent to it using a special format. Then any message sent to gis-l will automatically be forwarded to John Smith.