Bonjour,

Je souhaiterais améliorer les headers de mes emails. J'ai déjà optimisé comme il se devait mes headers mais j'aimerais aller plus loin pour ne plus être pris à tord pour du SPAM, alors j'ai comparé mes entêtes à celles de Amazon.
Voici les points que je voudrais améliorer, pouvez vous m'y aider ?

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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Mes lignes de header :
Received-SPF: neutral (google.com: 212.227.126.171 is neither permitted nor denied by best guess record for domain of contact@karapace.eu) client-ip=212.227.126.171;
Authentication-Results: mx.google.com;
       spf=neutral (google.com: 212.227.126.171 is neither permitted nor denied by best guess record for domain of contact@karapace.eu) smtp.mail=contact@karapace.eu
Received: from icpu3184.kundenserver.de (infong-fr14.clienthosting.fr [217.160.155.147])
	by mrelayeu.kundenserver.de (node=mreu1) with ESMTP (Nemesis)
	id 0M0MsD-1U0HcW21K1-00uItf; Sat, 22 Jun 2013 19:49:09 +0200
Received: from 46.105.7.169 (IP may be forged by CGI script)
    by icpu3184.kundenserver.de with HTTP
    id 2wOuIB-1Un4q91e7o-00Y6dl; Sat, 22 Jun 2013 19:49:09 +0200
 
Lignes de header de Amazon :
Authentication-Results: mx.google.com;
       spf=pass (google.com: domain of 201307091323547a183fd3c4eb4cd5a123c0962e5b5c16@bounces.amazon.fr designates 176.32.127.102 as permitted sender) smtp.mail=201307091323547a183fd3c4eb4cd5a123c0962e5b5c16@bounces.amazon.fr;
       dkim=pass header.i=auto-confirm@amazon.fr;
       dmarc=pass (p=NONE dis=NONE) d=amazon.fr
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
  d=amazon.fr; i=auto-confirm@amazon.fr; q=dns/txt;
  s=amazon201209; t=1373376239; x=1404912239;
  h=date:from:to:message-id:subject:mime-version;
  bh=LTCvmnPRYuClsSRJvQ7qweNhuyCooHki16zwajGE41Q=;
  b=qPGYPMKJAoP2oV6ekJ8LJR/129Q4sAxmU1wNaPtNGCjwJc+KDP0TJ1hg
   pnyi2T2Lt0zsCtKDgJWRtZystwRQ7hMLbYxs2ufGbWhav21GNAGByu6m5
   n3je3wPy9Y9ymZN/cV+/bBEJ5KO2bTSMntjlwABCrjx7vFeg+/ofVRrZZ
   I=;
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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Mes lignes de header :
X-Sender-Info: <466849100@icpu3184.kundenserver.de>
Message-Id: <2wOuIB-1Un4q91e7o-00Y6dl@icpu3184.kundenserver.de>
Precedence: bulk
X-Apache-Env: www-ip="NDYuMTA1LjcuMTY5";helo="aWNwdTMxODQua3VuZG
 Vuc2VydmVyLmRl";script="L2Nyb25FbWFpbF9kczVnNGo1Mn
 M1ZDRmOGQ0N2dmNHY1Zmc0LnBocA=="
X-Sender: <www.karapace.eu>
X-Mailer: PHP
X-auth-smtp-user: Karapace <contact@karapace.eu> 
X-abuse-contact: Karapace <contact@karapace.eu> 
X-Provags-ID: V02:K0:0DLduwhRk1sMMhZzvdbafFtRhogMQ6DIrS7i1mXnCkk
 ILnRP+A4jWx29BV3U1/gZ2+l/k2Ry69XOJv2yN0aprcFtq8VIR
 7YKGpiBMlsfbwfgMNR0u9i7pGFsP3J7QMlZetucLoxq9ctpaHN
 Wuv+ThzPczgyTyr541aK0/8nD45CQilruJUWm2JtAAygS+I9a2
 veIda2AhXSkmGXshTcPYcrl1Fzx1uwyoELNfQ4ngwXuGGnw2D/
 hwYStO2ZA5nG6EOi2WAhUgl/CcHRILWr0tgZqwfkSoJ/M+Hg3r
 nFQYoezoO4DQegIXngYFWhGGn1KcXfU7RsQztd9sGuXtAxllKg
 zsfuE9jtSZQPEOCa2jzfGAS7Gv3+6gPr/FxbR6TwHSot4oL5Q5
 FmlEzQelDlkFQ==
 
 
Lignes de header de Amazon :
Bounces-to: 201307091323547a183fd3c4eb4cd5a123c0962e5b5c16@bounces.amazon.fr
X-AMAZON-MAIL-RELAY-TYPE: notification
X-AMAZON-RTE-VERSION: 2.0
X-Original-MessageID: <urn.correios.msg.201307091323547a183fd3c4eb4cd5a123c0962e5b5c16@1373376234334.rte-svc-eu-1c-i-04f0674f.eu-west-1.amazon.com>