(Latest Revision: Tue Apr 25 15:47:58 PDT 2017 ) mailXmit.txt

mailXmit.txt



Information on How to Use Simple Mail Transfer Protocol (SMPT) 


--------------------------------------------------------------------
Here is a Direct Interaction with SMTP on Mail Host CS.Csustan.Edu
--------------------------------------------------------------------
john@linus.csustan.edu:(~) telnet cs.csustan.edu 25
Trying 130.17.70.80...
Connected to cs.csustan.edu.
Escape character is '^]'.
220 cs.csustan.edu ESMTP Postfix
HELO linus.csustan.edu
250 cs.csustan.edu
MAIL From:<john@linus.csustan.edu>
250 2.1.0 Ok
RCPT To:<john@cs.csustan.edu>
250 2.1.5 Ok
DATA
354 End data with <CR><LF>.<CR><LF>
To: <john@cs.csustan.edu>
From: <john@linus.csustan.edu>
Date: Mon Apr 24 13:27:08 PDT 2017
Subject: This is a test message
Hi John,
Have a nice day.
See you later.
-- your self
.
250 2.0.0 Ok: queued as D44655BAD32F
QUIT
221 2.0.0 Bye
Connection closed by foreign host.
john@linus.csustan.edu:(~) 
-----------------------------------------------------------
-----------------------------------------------------------

-----------------------------------------------------------------
Here is the E-mail Received as a Result of the Interaction Above
-----------------------------------------------------------------
From: john@linus.csustan.edu 
To: john@cs.csustan.edu
Subject: This is a test message

Received: from localhost (localhost [127.0.0.1]) by cs.csustan.edu (Postfix) with ESMTP id 3EF275BADAB0 for <john@cs.csustan.edu>; Mon, 24 Apr 2017 13:30:27 -0700 (PDT)
Received: from cs.csustan.edu ([127.0.0.1]) by localhost (cs.csustan.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2wQqH5ZfgMxa for <john@cs.csustan.edu>; Mon, 24 Apr 2017 13:30:27 -0700 (PDT)
Received: from linus.csustan.edu (linus.csustan.edu [130.17.70.46]) by cs.csustan.edu (Postfix) with SMTP id ACFAC5BADA82 for <john@cs.csustan.edu>; Mon, 24 Apr 2017 13:29:57 -0700 (PDT)
Delivered-To: jjsarr@cs.csustan.edu
Return-Path: <john@linus.csustan.edu>
X-Virus-Scanned: amavisd-new at cs.csustan.edu

Hi John,
Have a nice day.
See you later.
-- your self
-----------------------------------------------------------------
-----------------------------------------------------------------

-----------------------------------------------------------------
Here is the Interaction with Inputs Only
-----------------------------------------------------------------
telnet cs.csustan.edu 25
HELO linus.csustan.edu
MAIL From:<john@linus.csustan.edu>
RCPT To:<john@cs.csustan.edu>
DATA
To: <john@cs.csustan.edu>
From: <john@linus.csustan.edu>
Date: Mon Apr 24 13:27:08 PDT 2017
Subject: This is a test message
Hi John,
Have a nice day.
See you later.
-- your self
.
QUIT

-----------------------------------------------------------------
Here is the Interaction with Inputs Only and 
Modifications That Use False Information instead
of Correct Information
-----------------------------------------------------------------
telnet cs.csustan.edu 25
HELO bogus.csustan.edu
MAIL From:<false@lfalse.foo.com>
RCPT To:<john@cs.csustan.edu>
DATA
To: <nonesuch@noplace.nowhere.biz>
From: <guesswho@guess.where.com>
Date: Mon Apr 24 13:27:08 PDT 2017
Subject: This is a test message
Hi John,
Have a nice day.
See you later.
-- your self
.
QUIT
-----------------------------------------------------------------
-----------------------------------------------------------------

-----------------------------------------------------------------
Here is The Message Received as a Result of Using The
SMTP Commands with False Information
-----------------------------------------------------------------
From: guesswho@guess.where.com 
To: nonesuch@noplace.nowhere.biz
Subject: This is a test message

Received: from localhost (localhost [127.0.0.1]) by cs.csustan.edu (Postfix) with ESMTP id AD38F5BAE282 for <john@cs.csustan.edu>; Mon, 24 Apr 2017 13:40:44 -0700 (PDT)
Received: from cs.csustan.edu ([127.0.0.1]) by localhost (cs.csustan.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YKU3gJ_12Npv for <john@cs.csustan.edu>; Mon, 24 Apr 2017 13:40:44 -0700 (PDT)
Received: from bogus.csustan.edu (linus.csustan.edu [130.17.70.46]) by cs.csustan.edu (Postfix) with SMTP id 77F6C5BAE278 for <john@cs.csustan.edu>; Mon, 24 Apr 2017 13:40:44 -0700 (PDT)
Delivered-To: jjsarr@cs.csustan.edu
Return-Path: <false@lfalse.foo.com>
X-Virus-Scanned: amavisd-new at cs.csustan.edu

Hi John,
Have a nice day.
See you later.
-- your self
-----------------------------------------------------------
-----------------------------------------------------------