I have a very strange problem with my emails being marked as spam by hotmail.
I just have configured Postfix + Dovecot on my server and all works perfectly. I can Send/Receive emails. I only have problems with hotmail accounts, I do not understand the reason, because I also configured:
- My IP is not listed in any backlist, I used: mxtoolbox.com
Checking the headers I see that SPF and DKIM pass correctly. I have no problem with GMAIL, YAHOO, and other, but hotmail seems very strict.
The only problem I think... could be that my IP had no email traffic yet. I've sent very few emails to hotmail.
So, if postfix has no problem, what do I have to do to send emails to hotmail correctly? Because if the only reason is that I had no email traffic yet it means that my first newsletters will be tag as SPAM without no reason.
(An example of email received as SPAM is below)
x-store-info:4r51+eLowCe79NzwdU2kRwMf1FfZT+JrxVyutn/pLjoZiDggbl3J7aHGkQoNPd8ZB9iY77nKNhzoKkbFqj2wPQ4Ha91HUDyzG+BsQ2lzn+x/xsXGuDBWhAPIPgrYY3dCiWYILdpiCyM= Authentication-Results: hotmail.com; sender-id=pass (sender IP is 18.104.22.168) firstname.lastname@example.org; dkim=pass header.d=example.net; x-hmca=pass X-SID-PRA: email@example.com X-SID-Result: Pass X-DKIM-Result: Pass X-AUTH-Result: PASS X-Message-Status: n:n X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0wO0Q9MjtHRD0yO1NDTD00 X-Message-Info: M98loaK0Lo1j8FOgXol8UFVrP26QMSvVTQXke21+QxXu+DJ5ttCh6cM/eFA+HRgTBFdz52wvmszvfgxVXBCfExvqqIFxcJKaFap8dwTFrYmSiOTK6J40vAbrC+QeYPnMG9Hntes6IFH9T95bydckDQ== Received: from mail.example.net ([22.214.171.124]) by SNT0-MC3-F15.Snt0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4900); Sun, 30 Sep 2012 14:13:33 -0700 Received: from [192.168.1.2] (2-231-150-154.ip207.fastwebnet.it [126.96.36.199]) by mail.example.net (Postfix) with ESMTPA id DD0A3401D9 for <firstname.lastname@example.org>; Sun, 30 Sep 2012 21:13:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=example.net; s=mail; t=1349039612; bh=qCXqeVFYopgNSxSiqL3ANA5CfkeFw8AlGDFYh/ruUlg=; h=Date:From:To:Subject; b=NIYcYZJ4YitQHGus2ZQV4ErzN+hvFoDWi+M53eJXZSx3o0VamoA8PODMEZlWqvG29 aYQK8DVW140wZ1tmHCvNCIe+KF/FVmRkxtD2aWGVK5OhVNuFv6ldRE7VUDhlPfOvaZ uUqp1QopHJsg8pGDTeifigb58xTa2V4AOac6WY4c= Message-ID: <5068B5FA.email@example.com> Date: Sun, 30 Sep 2012 23:13:30 +0200 From: Aziende Mandanti <firstname.lastname@example.org> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120911 Thunderbird/15.0.1 MIME-Version: 1.0 To: email@example.com Subject: Registrazione avvenuta con successo Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 8bit Return-Path: firstname.lastname@example.org X-OriginalArrivalTime: 30 Sep 2012 21:13:33.0410 (UTC) FILETIME=[72B24C20:01CD9F50] Gentile Damiano, la registrazione è avvenuta correttamente. Saluti example.net
The IP you see in the headers is correct, I only obfuscated the email addresses