x.400 meaning

[Computer]
<messaging> The set of ITU-T communications standards covering electronic mail services provided by data networks. X.400 was widely used in Europe and Canada.

X.400 addresses tend to be much longer than RFC 822 ones. They consist of a set of bindings for country (c), administrative domain (a), primary management domain (p), surname (s), given name (g).

For example, the X.400 address,

 c=gb;a=attmail;p=Universal Export;s=Bond;g=James; 
might be equivalent to RFC 822

 James.Bond@UniversalExport.co.uk 
  • 400:    Adjective: 400Bein ...
  • as/400:    [Computer]<comp ...
  • 400 r41:    [Medicine]Broad sp ...

Related Words

  1. x.229 meaning
  2. x.25 meaning
  3. x.28 meaning
  4. x.29 meaning
  5. x.3 meaning
  6. x.409 meaning
  7. x.500 meaning
  8. x.680 meaning
  9. x.75 meaning
  10. x.desktop meaning
PC Version