From: Harvey Newstrom (mail@HarveyNewstrom.com)
Date: Fri May 30 2003 - 14:05:00 MDT
Brian Atkins wrote,
> As opposed to NNTP (news), there normally aren't many hops in email
> delivery. In fact it usually flows directly from the sender's ISP to the
> recipient's ISP. If it were all people in Australia using a particular
> ISP then yes, it could be that ISP's fault. But since we have multiple
> people with all different ISP's reporting the problem, it almost
> certainly is an issue with the originating ISP (aka Javien).
Agreed. However, in this case, Javien provides a couple of internal hops of
their own during the processing of Extropian List messages. Thus, in
addition to the direct sending and receiving by ISPs:
(for example)
I sent the message at 11:55 local time.
I received it from the List at 13:17 local time.
We also see internal Javien hops during processing:
(for example)
Received: from tick.javien.com (javien2-3.spots.ab.ca [209.115.169.3])
by spool6.valueweb.net (8.12.9/8.9.2) with ESMTP id h4UHHNOF021532
for <mail@HarveyNewstrom.com>; Fri, 30 May 2003 13:17:27 -0400
Received: (from majordom@localhost)
by tick.javien.com (8.11.6/8.11.2) id h4UFvhd06358
for extropians-outgoing; Fri, 30 May 2003 09:57:43 -0600
So the final timeline is clearly documented:
ex
11:55 sent message to ValueWeb
11:55 ValueWeb sent message to Extropians List
11:?? <unknown internal processing>
11:57 Javien queues message for "extropians-outgoing"
13:17 Javien transmits message to my ISP at ValueWeb
13:17 My client downloads the message from ValueWeb to my workstation
The Javien output queue is taking an hour to an hour-and-a-half to deliver
outgoing Extropians-List messages. This same pattern appears on other
e-mails I am examining as well. During that period the server sent out 18
messages. If we have more than 300 subscribers, Javien would appear to be
delivering more than one e-mail per second to the Extropians List
subscribers.
-- Harvey Newstrom, CISSP, IAM, GSEC, IBMCP <www.HarveyNewstrom.com> <www.Newstaff.com>
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