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Explanation of SMTP log file

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Description
I need to find out why my email message is not being delivered, but I don't understand how to read the SMTP log.  Can you explain what I am looking at?
Solution

See below for explanation of email flow through log file.

The transactions in the log when an email is received and processed to a local user with no errors:

03:19 03:22 SMTPD(00180250) [192.168.1.131] connect 209.221.59.70 port 2539
03:19 03:22 SMTPD(00180250) [209.221.59.70] EHLO jetbn.net
03:19 03:22 SMTPD(00180250) [209.221.59.70] MAIL FROM:<info-jjgcdshx@infostreet.us>
03:19 03:22 SMTPD(00180250) [209.221.59.70] RCPT To:<user@domain.com>
03:19 03:22 SMTPD(00180250) [209.221.59.70] C:\IMail\spool\D28de0018025017cd.SMD 3827
03:19 03:22 SMTP-(00000260) processing C:\IMail\spool\Q28de0018025017cd.SMD
03:19 03:22 SMTP-(00000260) ldeliver mail.domain.com user (1) <info-jjgcdshx@infostreet.us> 2354
03:19 03:22 SMTP-(00000260) finished C:\IMail\spool\Q28de0018025017cd.SMD status=1 

At this point your mail server establishes a connection and receives the email:

Date   Time   Process Connection #    Server IP           Connecting Server            Port #
03:19 03:22 SMTPD  (00180250)  [192.168.1.131]  connect 209.221.59.70  port 2539 
                                                                                         Connecting Server Name
03:19 03:22 SMTPD  (00180250)  [209.221.59.70]   EHLO jetbn.net 
                                                                                            Who is Sending the email
03:19 03:22 SMTPD  (00180250)  [209.221.59.70]  MAIL FROM:<info-jjgcdshx@infostreet.us> 
                                                                                                   Who the email is for
03:19 03:22 SMTPD  (00180250)  [209.221.59.70]  RCPT To:<user@domain.com> 
                                                                                 File created for this message in the spool     Msg Size Bytes
03:19 03:22 SMTPD  (00180250)  [209.221.59.70]      C:\IMail\spool\D28de0018025017cd.SMD       3827
From this point forward your server has the message and is processing it for delivery to the mailbox of the recipient:
                                                                               What Process is doing                 File that is being processed
03:19 03:22 SMTP-  (00000260)  processing  C:\IMail\spool\Q28de0018025017cd.SMD 
                                                                                Who received the email   Who sent the email      Deliv. Size  
03:19 03:22 SMTP-  (00000260) ldeliver mail.domain.com user (1) <info-jjgcdshx@infostreet.us> 2354 
                                                                           SMTP finishes processing the email     Status of Process  
03:19 03:22  SMTP- (00000260) finished C:\IMail\spool\Q28de0018025017cd.SMD   status=1

The transactions in the log when a message is processed and sent to a remote user with no errors:
   Date           Tme  Server IP           Process Conn#  Server Connecting to   ServerIP    Port
20030325 102649 127.0.0.1   SMTP (2292) Connect todomain.com [65.45.210.46: 25] (1)
                                                                                  Recipient Server Hello Message
20030325 102649 127.0.0.1   SMTP (2292) 220 What? Mail for Me??? X1
                                                                                  Sending user name
20030325 102649 127.0.0.1   SMTP (2292) >EHLO fromdomain.com
                                                                                  Recipient Server Hello Response
20030325 102650 127.0.0.1   SMTP (2292) 250-mail.todomain.com says hello
20030325 102650 127.0.0.1   SMTP (2292) 250-SIZE 0
20030325 102650 127.0.0.1   SMTP (2292) 250-8BITMIME
20030325 102650 127.0.0.1   SMTP (2292) 250-DSN
20030325 102650 127.0.0.1   SMTP (2292) 250-ETRN
20030325 102650 127.0.0.1   SMTP (2292) 250-AUTH LOGIN CRAM-MD5
20030325 102650 127.0.0.1   SMTP (2292) 250-AUTH=LOGIN
20030325 102650 127.0.0.1   SMTP (2292) 250 EXPN
                                                                               Who sent the message
20030325 102650 127.0.0.1   SMTP (2292) >MAIL FROM:sender@fromdomain.com
20030325 102650 127.0.0.1   SMTP (2292) 250 ok
                                                                                Who is to receive the message
20030325 102650 127.0.0.1   SMTP (2292) >RCPT To:<recipient@todomain.com>
                                                                                 Receiving server's permission to accept mail
20030325 102650 127.0.0.1   SMTP (2292) 250 ok its for recipient@todomain.com
                                                                              Beginning of message data send
20030325 102650 127.0.0.1   SMTP (2292) >DATA
20030325 102651 127.0.0.1   SMTP (2292) 354 ok, send it; end with <CRLF>.<CRLF>
                                                                               End of data send
20030325 102651 127.0.0.1   SMTP (2292) >.
                                                                              Message Queued for delivery
20030325 102651 127.0.0.1   SMTP (2292) 250 Message queued
                                                                       Message received by server and placed in recipients mailbox
20030325 102651 127.0.0.1   SMTP (2292) rdeliver todomain.com recipient@todomain.com (1) <sender@fromdomain.com> 356
                                                                                Closing connection to receiving server
20030325 102651 127.0.0.1   SMTP (2292) >QUIT

See the following articles:

IMail - Spool directory - an explanation of files

IMail - status=3 in SMTP log files

IMail - What do ldeliver and rdeliver mean?

IMail - What are the numbers after SMTPD (queue run)?

IMail Server 8.2 User's Guide - Mail Server Log Files

Version8.2x; 2006.0x; 2006.1; 2006.2x; 10; 10.01
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