Mail Server of mail2000.com.tw gets the same mail twice?

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hoamon

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Aug 6, 2011, 12:24:50 AM8/6/11
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When i use google.appengine.api.mail to send a mail, the gmail's reciepent only get the mail one time, but the recipients of yahoo.com.tw, mail2000.com.tw, msa.hinet.net will get the same mail twice.

below is the mail header of mail2000 reciepent:

first one:

=======================================================
X-M2K-MATCHED-RULE: SPAM_FILTER-MILO
Received: from 203.69.82.35
by m0.mail2000.com.tw with Mail2000 ESMTP Server V3.20M(10559:0:AUTH_NONE)
(envelope-from <37B4xTg0JBWUELR-HQcbPH-YfJP...@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com>); Thu, 28 Jul 2011 16:33:50 +0800 (CST)
X-M2KSPAM: YES/100
Received: from 209.85.210.199
by mx3.mail2000.com.tw with Mail2000 ESMTP Server V4.00M(46877:8:AUTH_NONE)
(envelope-from <37B4xTg0JBWUELR-HQcbPH-YfJP...@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com>); Thu, 28 Jul 2011 16:33:50 +0800 (CST)
X-M2KPolicyIP: 209.85.210.199 (mail-iy0-f199.google.com)
Received: by iyb14 with SMTP id 14so6371158iyb.2
        for <X...@mail2000.com.tw>; Thu, 28 Jul 2011 01:33:48 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.43.133.6 with SMTP id hw6mr299840icc.84.1311842028539; Thu, 28
 Jul 2011 01:33:48 -0700 (PDT)
X-Google-Appengine-App-Id: bio-enzyme-v2
Date: Thu, 28 Jul 2011 08:33:48 +0000
Subject: =?Big5?B?KiCmuaywtPq41atIoUGko6/gqPqu+K1xvlwgKiBbuvGkaqZh?=
=?Big5?B?sKOv5KT9XbCose2kQKhSr3Wquq/gsWGoq6nSprO30LRvttyhSA==?=
Content-Type: multipart/alternative; boundary=20cf307f32fc1cd16e04a91d066c

<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

second one:

X-M2K-MATCHED-RULE: SPAM_FILTER-MILO
Received: from 203.69.82.35
by m0.mail2000.com.tw with Mail2000 ESMTP Server V3.20M(10558:0:AUTH_NONE)
(envelope-from <37B4xTg0JBWUELR-HQcbPH-YfJP...@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com>); Thu, 28 Jul 2011 16:33:50 +0800 (CST)
X-M2KSPAM: YES/100
Received: from 209.85.210.200
by mx3.mail2000.com.tw with Mail2000 ESMTP Server V4.00M(46877:9:AUTH_NONE)
(envelope-from <37B4xTg0JBWUELR-HQcbPH-YfJP...@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com>); Thu, 28 Jul 2011 16:33:50 +0800 (CST)
X-M2KPolicyIP: 209.85.210.200 (mail-iy0-f200.google.com)
Received: by iyi20 with SMTP id 20so7132282iyi.3
        for <X...@mail2000.com.tw>; Thu, 28 Jul 2011 01:33:48 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.43.133.6 with SMTP id hw6mr299840icc.84.1311842028539; Thu, 28
 Jul 2011 01:33:48 -0700 (PDT)
X-Google-Appengine-App-Id: bio-enzyme-v2
Date: Thu, 28 Jul 2011 08:33:48 +0000
Subject: =?Big5?B?KiCmuaywtPq41atIoUGko6/gqPqu+K1xvlwgKiBbuvGkaqZh?=
=?Big5?B?sKOv5KT9XbCose2kQKhSr3Wquq/gsWGoq6nSprO30LRvttyhSA==?=
Content-Type: multipart/alternative; boundary=20cf307f32fc1cd16e04a91d066c 
 
We can see the same mail ID <20cf307f32fc1c...@google.com>, but the different IP of received server (209.85.210.200,209.85.210.199).

Because this problem happens on recipients of mail2000, yahoo and hinet, so i think that is google mail configuration problem. My application ID: bio-enzyme-v2.

Thank you for your patience.
 

Robert Kluin

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Aug 9, 2011, 1:40:55 AM8/9/11
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If you're sure it isn't some type of code issue on your end, you might
file an issue:
http://code.google.com/p/googleappengine/issues/entry?template=Production%20issue

Robert

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hoamon

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Sep 16, 2011, 4:07:48 AM9/16/11
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i got the answer.  It is the "to" and "bcc" field setup problem.

I used to like set bcc field to send mail, but GAE did't allow me to only set bcc.  Then i set the "to" and "bcc" field at the same time, and for the gmail recipients, the gmail server will filter the same mail for duplicate mails.  That is why gmail recipients only get one mail, but the other mail servers will get twice.

Robert Kluin

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Sep 18, 2011, 8:52:45 PM9/18/11
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Ah. Good to know, thanks for sharing the resolution.


Robert

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