| electronic mail address (Usually "e-mail address", rarely "e-dress", "e-ddress") The string used to specify the source or destination of an message. E.g. "john@doc.acme.ac.uk". The standard is probably the most widely used on the though {X.400} is also in use in Europe and Canada. -style () addresses or other kinds of became virtually extinct in the 1990s. In the example above, "john" is the which is the name of a on the destination computer. If the sender and recipient use the same computer, or the same , for electronic mail then the local part is usually all that is required. If they use different computers, e.g. they work at different companies or use different , then the "host part", e.g. "sales.acme.com" must be appended after an "@". This usually takes the form of a or, within a large organisation, it may be just the part, e.g. "sales". The destination computer named by the host part is often a of some kind rather than an individual's or . The user's mail is stored on the server and read later via mail software running on the user's computer. Large organisations, such as universities will often set up a global directory which maps a simple user name such as "jsmith" to an address which contains more information such as "jsmith@london.bigcomp.co.uk". This hides the detailed knowledge of where the message will be delivered from the sender, making it much easier to redirect mail if a user leaves or moves to a different computer for example. (1996-10-22) |
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