Monday, November 13, 2006, 6:42:38 AM, Chris Moody <[EMAIL PROTECTED]> wrote:
CM>  I had another complaint Friday. User received the same error message,
CM> logs showed something a bit different though. 
CM> 20061110 102455 127.0.0.1       SMTPD (99c701a800001bdd) [192.168.0.2]
CM> connect 127.0.0.1 port 2881
CM> 20061110 102455 127.0.0.1       SMTPD (99c701a800001bdd) [127.0.0.1]
CM> EHLO driller.com
CM> 20061110 102456 127.0.0.1       SMTPD (99c701a800001bdd) [127.0.0.1]
CM> MAIL FROM:<[EMAIL PROTECTED]>
CM> 20061110 102456 127.0.0.1       SMTPD (99c701a800001bdd) [127.0.0.1]
CM> RCPT TO:<[EMAIL PROTECTED]> NOTIFY=NEVER
CM> 20061110 102456 127.0.0.1       SMTP (99c701a800001bdd) processing
CM> D:\IMail\spool\Q99c701a800001bdd.SMD
CM> 20061110 102456 127.0.0.1       SMTP (99c701a800001bdd) Trying
CM> dlcinvestments.com (0)
CM> 20061110 102456 127.0.0.1       SMTPD (99c701a800001bdd) [127.0.0.1]
CM> D:\IMail\spool\D99c701a800001bdd.SMD 1617
CM> 20061110 102456 127.0.0.1       SMTPD (99c801a800001bde) [127.0.0.1]
CM> MAIL FROM:<[EMAIL PROTECTED]>
CM> 20061110 102456 127.0.0.1       SMTPD (99c801a800001bde) [127.0.0.1]
CM> RCPT TO:<[EMAIL PROTECTED]>
CM> 20061110 102456 127.0.0.1       SMTPD (99c801a800001bde) [127.0.0.1] ERR
CM> mail.driller.com invalid user <[EMAIL PROTECTED]
CM> 20061110 102456 127.0.0.1       SMTP (99c701a800001bdd) Connect
CM> dlcinvestments.com [67.19.34.36:25] (1)
[Snip]
CM> id=1GiYEt-00021S-AB
CM> 20061110 102459 127.0.0.1       SMTP (99c701a800001bdd) rdeliver
CM> dlcinvestments.com [EMAIL PROTECTED] (1) <[EMAIL PROTECTED]> 1617
CM> 20061110 102459 127.0.0.1       SMTP (99c701a800001bdd) >QUIT
CM> 20061110 102459 127.0.0.1       SMTP (99c701a800001bdd) 221
CM> bo.yourhostdns.com closing connection
CM> 20061110 102459 127.0.0.1       SMTP (99c701a800001bdd) finished
CM> D:\IMail\spool\Q99c701a800001bdd.SMD status=1

CM> As you can see it spawned another deilvery thread (99c801a800001bde)
CM> that failed right in the middle of sending an email, to the same person
CM> and everything. 
[SNIP}

It doesn't look like 99c801a800001bde is actually a newly spawned
delivery thread. The process ID of 'SMTPD' indicates there is an
active connection established and Imail is actively receiving the
message. Imail uses the process ID of 'SMTP' once Imail has received
the entire message and is processing it for delivery.

My guess is that if you search higher in the log for 99c801a800001bde,
you'll find it is a connection which did not authenticate and thus is
not allowed to relay.  If that is the case, then the 550 not local/not
gateway error message is appropriate.

HTH


----
Don Brown - Dallas, Texas USA     Internet Concepts, Inc.
[EMAIL PROTECTED]       http://www.inetconcepts.net
(972) 788-2364                    Fax: (972) 788-5049
----

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