E-mail authentication what, why, how?.

There are ways to know for sure that that e-mail really was sent by your bank, but which method is best?

Bibliographic Details
Published in:	ACM queue : architecting tomorrow's computing. 4, 9 (2006).
Main Author:	Allman, Eric
Format:	Article
Language:	English
Published:	New York ACM 2006
Subjects:	Information systems. Information systems applications. Communications applications. Electronic mail. Information storage and retrieval. Systems and software. Distributed systems. Computing Milieux. Computers and society. Social issues. Management of computing and information systems. Security and protection. Authentication. Security.