Envelope in email delivery.

[xun dong <xundong () cs york ac uk>]

In a email delivery, there are 3 types of data: Envelope, Header and 
Data. My question is will the SMTP email server store Envelope or just 
store the header and data. If the Smtp email server does store the 
envelope, can an IMAP client retrieve it?

Thanks in advance.

--
Xun Dong


---------------------------------------------------------------------------
This list is sponsored by: Norwich University

EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE
The NSA has designated Norwich University a center of Academic Excellence 
in Information Security. Our program offers unparalleled Infosec management 
education and the case study affords you unmatched consulting experience. 
Using interactive e-Learning technology, you can earn this esteemed degree, 
without disrupting your career or home life.

http://www.msia.norwich.edu/secfocus
---------------------------------------------------------------------------