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Blackholed Emails to hotmail unless email is added to the accounts address book?

Discussion in 'E-mail Discussions' started by phillbooth, Mar 10, 2016.

  1. phillbooth

    phillbooth Active Member

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    Hello, apologies if you have seen a similar email on this forum I know there are quite a few.

    I run a small server for my company and we seem to have trouble sending emails to hotmail.com users the emails are simply go missing, we do get a rejected message neither do they appear in the spam box.

    We have however found that only hotmail.com user that have the email address in their address list receive the email.

    We do not send out marketing emails just business emails to customers and suppliers.

    Things like HELO and Sender Verification Callouts compliance are set up in the EXIM config.

    We have a correct SPF and DKIM and we use DMARK reporting system where we get notifications from hotmail.com that the emails have been received and the SPF/DKIM/IP's are correct even though the emails have not appeared in.

    We have also signed up to Microsoft authentication system(s) DocuSign, SNDS and JMRP

    Our PRT/rDNS points to the server name sending out the emails.

    And we are not on any IP blacklists and have not ever been on a blacklist

    Out EXIM log shows that the email arrives with out any issue. (below)

    Code:
    2016-03-10 09:29:12 1adwu8-0002Wj-P0 H=(188.166.156.185) [::1]:33972 Warning: Message has been scanned: no virus or other harmful content was found
    2016-03-10 09:29:12 1adwu8-0002Wj-P0 <= info@example.co.uk H=(188.166.156.185) [::1]:33972 P=esmtpa A=dovecot_login:info@example.co.uk S=623 id=71620f305ff2731836e0674ca8aba780@example.co.uk T="test3" for exampleuser@hotmail.com
    2016-03-10 09:29:12 1adwu8-0002Wj-P0 SMTP connection outbound 1457602152 1adwu8-0002Wj-P0 example.co.uk exampleuser@hotmail.com
    2016-03-10 09:29:14 1adwu8-0002Wj-P0 => exampleuser@hotmail.com R=dkim_lookuphost T=dkim_remote_smtp H=mx2.hotmail.com [65.55.37.88] X=TLSv1.2:ECDHE-RSA-AES256-SHA384:256 CV=yes C="250  <71620f305ff2731836e0674ca8aba780@example.co.uk> Queued mail for delivery"
    2016-03-10 09:29:14 1adwu8-0002Wj-P0 Completed
    So just as an example this is the header from an Email that is accepted because the "from" email is in the hotmail.com accounts Address Book

    Code:
    x-store-info:qAUQJzZ73IJCLUJ+0n7ZQ5yN3wd9gk1J07UWi4loZZzPI5m/6XJfda1HSznT8WoXB9vhQqhEoSI08tyYvRUjuZpjwYZVz1Gnx0LX8+UpXEIRhXUfr3IBsHSoKCd6oUBUtmEAzVgrqA0BUdnjhlUrCA==
    Authentication-Results: hotmail.com; spf=pass (sender IP is 188.166.156.185; identity alignment result is pass and alignment mode is relaxed) smtp.mailfrom=info@example.co.uk; dkim=pass (identity alignment result is pass and alignment mode is relaxed) header.d=example.co.uk; x-hmca=pass header.id=info@example.co.uk
    X-SID-PRA: info@example.co.uk
    X-AUTH-Result: PASS
    X-SID-Result: PASS
    X-Message-Status: n:n
    X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0wO0Q9MztHRD0zO1NDTD03
    X-Message-Info: quWoRize8kAhL5pjqLXOA0MaMn/Gi2gILPRd0yrvhXnScUBiLl19zazKYn5DbLq3eBrjV6RxV9aEh4ukWbRG9QSaPXVt8nbVl4yn6BrIazf9g7Cz3tQUQ0lJ9eQE9UDI2mtN8oxfaqcEhhfunZu0mww7l5Pzrown8TfUunv3XxmmsTf7zUH4dizIgNpUu3fRZp/4SnxPngpd7qIq6Fg5Q75YSXMTJ+WBEul0/K+EBuA=
    Received: from server5.exampleserver.co.uk ([188.166.156.185]) by COL004-MC2F37.hotmail.com over TLS secured channel with Microsoft SMTPSVC(7.5.7601.23143);
         Thu, 10 Mar 2016 01:29:15 -0800
    DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
        d=example.co.uk; s=default; h=Message-ID:Subject:To:From:Date:
        Content-Transfer-Encoding:Content-Type:MIME-Version;
        bh=uwVE0SsUJ8oLg+ZDMZ79idR50aD2JWi9A1Lyg0YWhDg=; b=CzeVVXw0U47UNkw3nLfkah8y39
        ndcV+KqEofTFZeE6/Liy7e0dtk7BzI+Y8om0L7am3r92WXhLQ4x7q43yCqgXaWcMMojFJLfWvLSfE
        DplJhxHugA1QSLl4ZthCIWFZ+kY0JtjUlHJBTGTNEjHXde9qHYnFSZs/7N3TcELvPfxTA2DfW9WwZ
        4y+Ho0jOhw16gf/9e1GYPf3Bwa3wDGqpY+nVfqZG2RbmEfMWKuagZCcq15D9iviyVhxMmkOOWWVSm
        AZscJ+e0vEQaVR8JOaWM1qqa6Al5y3Jw2qL+jb9lOogFK0TD7ayPNRz+Lny/a4M/+YMA4cMNzRdlm
        4hueHTFQ==;
    Received: from [::1] (port=33972 helo=188.166.156.185)
        by server5.exampleserver.co.uk with esmtpa (Exim 4.86_1)
        (envelope-from <info@example.co.uk>)
        id 1adwu8-0002Wj-P0
        for exampleuser@hotmail.com; Thu, 10 Mar 2016 09:29:12 +0000
    MIME-Version: 1.0
    Content-Type: text/plain; charset=US-ASCII;
    format=flowed
    Content-Transfer-Encoding: 7bit
    Date: Thu, 10 Mar 2016 09:29:12 +0000
    From: info@example.co.uk
    To: exampleuser@hotmail.com
    Subject: test3
    Message-ID: <71620f305ff2731836e0674ca8aba780@example.co.uk>
    X-Sender: info@example.co.uk
    User-Agent: Roundcube Webmail/1.0.6
    X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
    X-AntiAbuse: Primary Hostname - server5.exampleserver.co.uk
    X-AntiAbuse: Original Domain - hotmail.com
    X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
    X-AntiAbuse: Sender Address Domain - example.co.uk
    X-Get-Message-Sender-Via: server5.exampleserver.co.uk: authenticated_id: info@example.co.uk
    X-Authenticated-Sender: server5.exampleserver.co.uk: info@example.co.uk
    X-Source:
    X-Source-Args:
    X-Source-Dir:
    X-From-Rewrite: unmodified, already matched
    Return-Path: info@example.co.uk
    X-OriginalArrivalTime: 10 Mar 2016 09:29:15.0734 (UTC) FILETIME=[50686760:01D17AAF]
     
    #1 phillbooth, Mar 10, 2016
    Last edited: Mar 10, 2016
  2. cPanelMichael

    cPanelMichael Forums Analyst
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  3. phillbooth

    phillbooth Active Member

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    Thanks for that but they wont white list our IP even though we have done everything possible short of using their services like office 365.

    Looking at the web, this seems to be an issue a lot of people are having with Microsoft, has your corporate management considered raising an anticompetitive / antitrust complaint regarding this to the ECN / FTC ?
     
  4. JoseDieguez

    JoseDieguez Registered

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    This is a normal procedure from Microsoft/Outlook to make more people use their paid services. you do have a form on microsoft website (the form it's extremely well hidden) to fill, and make them stop "blackhole" your mails.
     
  5. reeyhdz

    reeyhdz Registered

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    Jose, by any chance do you know where it is?
     
  6. phillbooth

    phillbooth Active Member

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    Here is the link https://support.microsoft.com/en-us...fsmsbl3&locale=en-us&ccsid=635806049111602712

    Make sure you have these

    • SPF
    • DKIM
    • DMARK
    • rWHOIS (referencing your company or organisation)
    • rDNS / PRT (referencing your domain name)
    IN CPANEL/WHM/EXIM OPTIONS
    • SPF
    • DKIM
    • Set SMTP Sender: headers
    • Require HELO before MAIL
    • Require RFC-compliant HELO
    • Allow Sender Verification
    • Scan Outgoing emails for spam and viruses/malware

    You might want to sign up to these as well

    https://postmaster.google.com
    Outlook.com Postmaster
     
    cPanelMichael likes this.
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