00986    a2200181   4500003000500000005001700005010001600022020001500038040000900053082001900062100002000081245010900101260005400210300003300264505044100297650004400738700002200782Nust20230124103041.0  a   94002513  a0201568608  cNust00a384.340973,BLU1 aBlum, Daniel J.14aThe e-mail frontier : bemerging markets and evolving technologies / cDaniel J. Blum, David M. Litwack.  aReading, Mass. :bAddison-Wesley Pub. Co.,cc1995  axx, 476 p. :bill. ;c23 cm.  aThe Email Frontier (Page-1), The messaging and Directory Overview (Page-15), The Private Messaging Marketplace (Page-49), The public messaging Marketplace (Page-87), Email Technology (Page-143), The X-400 Standers (Page-197), Internet Mail (Page-245), Email and Directories (Page-287), Electronic Commerce and Massage (Page-335), The Email Vision (Page-381), Email Standers, Bodies and Consortia (Page-415), Bibliography Ref (Page-439). 0aElectronic mail systemszUnited States.1 aLitwack, David M.