> i wonder if all the applications used to send emails which > are running on > the machines at an ethernet LAN use Simple Mail Transfer > Protochol ? For
All email, regardless of how it starts out, ends up in SMTP (however, not all of it is in plain text). In general, any encryption that takes place encodes the message body as an attachment to a standard SMTP message. Thus, all you can see is the headers, while the body of the message is obscured/encrypted. > instance, one may use Outlook Express or the other one may > use Pine (for > Linux platforms)...do these applications use encryption? if so, the In general they do not. > encryption algorithms are known ones ? Furthermore, what is > the case for > Web-based email (Hotmail, Yahoo, etc..)..? i think this kind > of emails use > the http port ? if so, how can i recognize the web-based emails? The email is composed over the HTTP port, however, when the user hits send, the server translates the data it receives into SMTP and sends it off via port 25. SLH. --- Steighton Haley [EMAIL PROTECTED] "There are 10 types of people in this world, those who understand binary, and those who don't." ================================================================= This is the WinPcap users list. It is archived at http://www.mail-archive.com/[EMAIL PROTECTED]/ To unsubscribe use mailto: [EMAIL PROTECTED] =================================================================
