[Exim] [fwd] Fwd: failure notice (from: johndoe@yahoo.com)

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Author: ODHIAMBO Washington
Date:  
To: exim-users
Subject: [Exim] [fwd] Fwd: failure notice (from: johndoe@yahoo.com)

Hello All,

One question before you retire for your weekends.

Does anyone know if these days Yahoo sends out their e-mails via
an intermediate server called sun.mmic.net ??

I do some checks for Yahoo servers to keep spammers at bay. If the
mail is not delivered DIRECTLy by Yahoo servers to my server then I
politely reject it. A new development has caught me unawares though:

I have some funny scenario here:

A user johdoe@??? sends an e-mail to mabibi@???. This
mail is forwarded to validclient@???

When this mail hits wananchi.com, it's arriving via sun.mmic.net. Now
I am wondering if this is a valid Yahoo server??? Shall I trust it?

Below is one e-mail that johdoe@yahoo receives once I have rejected
their mail (because it's not from a Yahoo server). :-))



<cut>
From: MAILER-DAEMON@???
To: johndoe@???
Date: 15 Aug 2003 11:20:20 -0000
Subject: failure notice

Hi. This is the qmail-send program at sun.mmic.net.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<validclient@???>:
62.8.64.4 failed after I sent the message.
Remote host said: 550 No thank you: please send through Yahoo servers

--- Below this line is a copy of the message.

Return-Path: <johndoe@???>
Received: (qmail 3100 invoked by uid 10343); 15 Aug 2003 11:18:07 -0000
Delivered-To: m10343-mabibitours@???
Received: (qmail 3094 invoked by uid 499); 15 Aug 2003 11:18:07 -0000
Received: from web21510.mail.yahoo.com (HELO web21510.mail.yahoo.com) (66.163.169.59) by sun.mmic.net (qpsmtpd/0.27-dev) with SMTP; Fri, 15 Aug 2003 07:18:07 -0400
Message-ID: <20030815111805.63489.qmail@???>
Received: from [195.116.143.254] by web21510.mail.yahoo.com via HTTP; Fri, 15 Aug 2003 04:18:05 PDT
Date: Fri, 15 Aug 2003 04:18:05 -0700 (PDT)
From: John doe <johndoe@???>
Subject: bouncing mail
To: mabibi@???

[ censored ]
</cut>





-Wash

--
Odhiambo Washington   <wash@???>  "The box said 'Requires
Wananchi Online Ltd.  www.wananchi.com      Windows 95, NT, or better,'
Tel: +254 2 313985-9  +254 2 313922         so I installed FreeBSD."
GSM: +254 72 743223   +254 733 744121       This sig is McQ!  :-)



Economists state their GNP growth projections to the nearest tenth of a
percentage point to prove they have a sense of humor.
        -- Edgar R. Fiedler