[Mailman-Users] email bouncing back to sender...

[Richard Barrett]

You do not seem to have an MX record published for the  
alumni-office.swarthmore.edu domain and while an A record is acceptable  
for a machine with a public IP number it is indicative of a possible  
failure for your network to be configured so as to allow SMTP  
connection to port 25 on that machine.

I also found that attempting to connect to port 25 on  
alumni-office.swarthmore.edu failed with a timeout which suggest that  
something may be blocking connections to it. I suggest you discuss this  
with your local sys admin as the cause of your problem may be the  
configuration of firewalls on your machine/LAN

The following illustrate the inability to connect, which is what the  
MTA that sent the bounce message was reporting:

;; ANSWER SECTION:
alumni-office.swarthmore.edu.  2h5m45s IN A  130.58.82.74

$ telnet alumni-office.swarthmore.edu 25
Trying 130.58.82.74...
telnet: connect to address 130.58.82.74: Operation timed out
telnet: Unable to connect to remote host

On 6 Sep 2004, at 13:55, Nathan K. Stazewski wrote:

> I'm not sure if this is a problem on the listserv side.or if bowdoin  
> edu's.
> I didn't see anything about this on previous postings, so I thought  
> I'd ask.
> Basically, whenever this user tries to post to our listserv, it waits  
> 2 days
> and says it can't deliver.  I never see the email to be able to  
> approve it.
> We don't seem to be having any other problems.just this one user.   
> Thanks in
> advance.
>
>
>
> -------- Original Message --------
>
>
> Subject:
>
> Delivery Notification: Delivery has been delayed
>
>
> Date:
>
> Sat, 04 Sep 2004 00:37:09 -0400 (EDT)
>
>
> From:
>
> Internet Mail Delivery  <mailto:postmaster at mail.bowdoin.edu>
> <postmaster at mail.bowdoin.edu>
>
>
> To:
>
> wcadge at bowdoin.edu
>
>
>
> This report relates to a message you sent with the following header  
> fields:
>
>   Return-path:  <mailto:wcadge at bowdoin.edu> <wcadge at bowdoin.edu>
>   Received: from mail.bowdoin.edu by mail.bowdoin.edu
>    (iPlanet Messaging Server 5.2 HotFix 1.21 (built Sep  8 2003))
>    id  <mailto:0I3I000MG25XPH at mail.bowdoin.edu>
> <0I3I000MG25XPH at mail.bowdoin.edu>; Sat,  4 Sep 2004 00:37:09 -0400  
> (EDT)
>   Received: from bowdoin.edu (mail [139.140.14.83])
>    by mail.bowdoin.edu (iPlanet Messaging Server 5.2 HotFix 1.21  
> (built Sep
> 8
>    2003)) with ESMTP id  <mailto:0I3D007M6QLTRV at mail.bowdoin.edu>
> <0I3D007M6QLTRV at mail.bowdoin.edu> for
>    Class97 at alumni-office.swarthmore.edu; Wed, 01 Sep 2004 16:37:05  
> -0400
> (EDT)
>   Received: from [66.92.75.203] by mail.bowdoin.edu (mshttpd); Wed,
>    01 Sep 2004 16:37:05 -0400
>   Date: Wed, 01 Sep 2004 16:37:05 -0400
>   From: Wendy Cadge  <mailto:wcadge at bowdoin.edu> <wcadge at bowdoin.edu>
>   Subject: that time again....classnotes
>   To: Class97 at alumni-office.swarthmore.edu
>   Message-id:  <mailto:b7238b632e.b632eb7238 at bowdoin.edu>
> <b7238b632e.b632eb7238 at bowdoin.edu>
>   MIME-version: 1.0
>   X-Mailer: iPlanet Messenger Express 5.2 HotFix 1.21 (built Sep  8  
> 2003)
>   Content-type: text/plain; charset=us-ascii
>   Content-language: en
>   Content-transfer-encoding: 7BIT
>   Content-disposition: inline
>   X-Accept-Language: en
>   Priority: normal
>
> Your message has been enqueued and undeliverable for 2 days
> to the following recipients:
>
>   Recipient address: Class97 at alumni-office.swarthmore.edu
>   Reason: unable to deliver this message after 2 days
>
>
> Delivery attempt history for your mail:
>
> Fri,  3 Sep 2004 19:57:39 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Fri,  3 Sep 2004 11:53:55 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Fri,  3 Sep 2004 03:50:11 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Thu,  2 Sep 2004 19:46:27 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Thu,  2 Sep 2004 19:10:48 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Thu,  2 Sep 2004 11:07:04 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Thu,  2 Sep 2004 07:03:19 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Thu,  2 Sep 2004 02:59:34 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Wed,  1 Sep 2004 22:55:50 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Wed,  1 Sep 2004 20:52:04 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Wed,  1 Sep 2004 18:48:20 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Wed,  1 Sep 2004 17:44:35 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> Wed,  1 Sep 2004 16:40:50 -0400 (EDT)
> TCP active open: Failed connect()    Error: Connection timed out
>
> The mail system will continue to try to deliver your message
> for an additional 1 day.
>
>
>
> _______________________
>
> Nathan K. Stazewski
>
> Assistant Director
>
> Alumni Relations
>
> Swarthmore College
>
> Swarthmore, PA  19081
>
> 610-957-6103
>
> Fax: 610-328-7796
>
>
> <file:///C: 
> \Documents%20and%20Settings\NStazew1\Application%20Data\Microsoft
> \Signatures\www.swarthmore.edu> www.swarthmore.edu
>
>
>
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