Great Circle Associates List-Managers
(January 1997)
 

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Subject: Re: Netcom's dynamically changing addresses
From: "John Buckman" <jbuckman @ shelby . com>
Organization: Walter Shelby Group Ltd.
Date: Mon, 6 Jan 1997 09:03:38 +7
To: list-managers <list-managers @ GreatCircle . COM>
Comments: Authenticated sender is <jbuckman@synergy>

> Hmmm. I don't know if I buy the idea that Netcom is not responsible. All
> the mail I've seen from NetCruiser users has, so far as I can tell,
> passed through a Netcom server on its way from the user's PC to the rest
> of the Net.  
> 
> A typical "Received:" line might look like
> 
> Received: from dfw-ix2.ix.netcom.com (dfw-ix2.ix.netcom.com 
>   [206.214.98.2]) by server.postmodern.com (8.7.4/mcb-960422) with
>   SMTP id MAA06937; Fri, 26 Apr 1996 12:14:05 -0700 (PDT)

James told me that this person is using Pegasus Mail, which by
default uses the person's POP3 info to build the From: address.  

Thus, if the POP3 server they use is "ix4.ix.netcom.com" and their
username is "jane", Pegasus gives them the email address
"jane@ix4.ix.netcom.com".  

My guess is that Netcom uses some sort of POP3 use-balancing scheme,
so the person is using any one of a number POP3 servers each time
they use Pegasus, and each time a different default From: is being
auto-generated.

The solution for them was to use the Pegasus "advanced configuration
options" and tell Pegasus what their "From" address is (and to use it
in the SMTP envelope), so that Pegasus doesn't auto-generate the 
From: address.

John

john@shelby.com, Shelby Group Ltd., http://www.shelby.com/


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From: mcb@postmodern.com (Michael C. Berch)

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