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550 errors from yahoo

Discussion in 'E-mail Discussions' started by Cloud9, Jan 4, 2014.

  1. Cloud9

    Cloud9 Active Member

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    Yahoo are sporadically bouncing mail being sent to me from yahoo accounts

    this is the bounce back

    Code:
    From: MAILER-DAEMON@yahoo.com
    Date: 3 January 2014 21:44:19 GMT
    To: yahooperson@yahoo.co.uk
    Subject: Failure Notice
    
    Sorry, we were unable to deliver your message to the following address.
    
    <me@mydomain.com>:
    Remote host said: 550 signature_incorrect [BODY]
    
    --- Below this line is a copy of the message.
    
    Received: from [212.82.98.56] by nm17.bullet.mail.ir2.yahoo.com with NNFMP; 03 Jan 2014 21:44:18 -0000
    Received: from [46.228.39.95] by tm9.bullet.mail.ir2.yahoo.com with NNFMP; 03 Jan 2014 21:44:18 -0000
    Received: from [127.0.0.1] by smtp132.mail.ir2.yahoo.com with NNFMP; 03 Jan 2014 21:44:18 -0000
    DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1388785458; bh=mCn8Ows1QJdGCi6Q3z5SGBUiVkTB7/6NwZcbYS5YiE0=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:X-Rocket-Received:Content-Type:Content-Transfer-Encoding:Subject:From:Message-Idate:To:Mime-Version:X-Mailer; b=pwSYwJBYbt/MyHRIHNgwK9WBlOFJAce2j3SSNiwZ0+9Aw0AdBj4EKlVvTyaSW5zFBfR8TUzq+J9XJWL/ymfYJIDSA9dqyp0j2tKdK3Lx2VPlg2wBKH2E6IeLAglC//HXnpTaRm2pTUI1LSJfP5Z4WaDfam1YbcoyVbHynCHe+u0=
    X-Yahoo-Newman-Id: 736321.95289.bm@smtp132.mail.ir2.yahoo.com
    X-Yahoo-Newman-Property: ymail-3
    X-YMail-OSG: HGY09gQVM1l5pTysN0bBTm6IuuWSlvsHDLphtlfa4p_oOns
    K_jdnruEM3ZexZjoetsODtDS7CU9AqICD6eeuy_lhua4n6IMvDfXuvLr1Pse
    myC7VgUpZBcAbugVPg_zsdVvYuOmmQuDqJYdJ.GEy.T_zCJKoJH1iaxm24eS
    ucg1zPZMNgnZMexVqUSuNF6GnYu4pBecDC3DVh_yiPSlG65wxkVfsUnP4rcm
    T6xonJKb0aKxzDyun740uUzt0mktGqDdwBEyt1UMtPCe5VnMOxETKaOvbwRC
    JpE__cCI1RIFzzZSS7xG4WU9r7ICSQL_75XIUiaLlkymkuOc8bgJTAMFlr.D
    8.D0tmkz51u.ZGw9WJGWZhYihje4md3nYq2.heAbBCfH2oNO0ymSo1ZCrIpw
    przOMlzPKhtcCVuqSJJSrAwizsAdsVg.8GI_nNVZD_5GkR3yhyftLUZ1yyus
    SIZYBHWBtTMsd7VPi7bANKAcqYMauHuzfe0XTQ6ute1UCl2EsznbiJijqo5U
    k6WZz858WfW_RhbSCGj05JTqEnwYLGV6I8VI-
    X-Yahoo-SMTP: aqwYCvSswBAO_vjHa_WNB4eInTh2Mw--
    X-Rocket-Received: from [10.129.182.225] (yahooperson@82.132.222.232 with xymcookie [46.228.39.225])
    by smtp132.mail.ir2.yahoo.com with SMTP; 03 Jan 2014 21:44:18 +0000 UTC
    Content-Type: text/plain; charset=us-ascii
    Content-Transfer-Encoding: 7bit
    Subject: Toilets!
    From: Yahoo Person <yahooperson@yahoo.co.uk>
    Message-Id: <BBA095E9-5285-436E-9068-95271E60A404@yahoo.co.uk>
    Date: Fri, 3 Jan 2014 21:35:04 +0000
    To: "me@mydomain.com" <me@mydomain.com>
    Mime-Version: 1.0 (1.0)
    X-Mailer: iPhone Mail (11B554a) 

    Is this a yahoo problem or something at my server ?
     
  2. simonas

    simonas Well-Known Member

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    Hello,

    It says 550 signature_incorrect, meaning possibly DKIM key is wrong.

    Please visit this page Brandon Checketts

    And send email to provided address.

    It will tell you what's the problem.
     
  3. Cloud9

    Cloud9 Active Member

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    Thanks, Missing DKIM record

    And i was sure it had one :confused:
     
  4. Cloud9

    Cloud9 Active Member

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    Now the strange thing is - I have a valid DKIM and the above test - Brandon Checketts lists the DKIM as missing ?

     
  5. Cloud9

    Cloud9 Active Member

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    Still getting bounced mail 550 incorrect signature errors

    But DKIM is now set up ok, but as above if i test it i get no skim sig returned ?

    Do i need to restart any services (have restarted imap)
     
  6. cPanelPeter

    cPanelPeter Technical Analyst III
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    Twitter:
    Hello,

    dkim signatures are entered at the DNS level, so you can dig for it, if you have shell access. Example might be:
    Code:
    # dig dkim._domainkey.YOURDOMAIN.TLD txt
    
    Replace YOURDOMAIN.TLD with your domain name obviously. Also if you are using something other than dkim as the host, you would need to change that.
     
  7. Cloud9

    Cloud9 Active Member

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    Yes, dig is fine - i have dkim sigs and all is good with dig and if i run a dkim test like here DKIM Test - DKIM Verify - DKIM Validator

    But Yahoo are still bouncing my emails as

    - - - Updated - - -

    Here is the dig

    Code:
    dig dkim._domainkey.MYDOMAIN.com txt
    
    ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 <<>> dkim._domainkey.MYDOMAIN.com txt
    ;; global options: +cmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28805
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
    
    ;; QUESTION SECTION:
    ;dkim._domainkey.MYDOMAIN.com. IN	TXT
    
    ;; AUTHORITY SECTION:
    MYDOMAIN.com.	1800	IN	SOA	ns1.MYDNS.net. MYNAME.MYDOMAIN.com. 2014010501 86400 7200 3600000 86400
    
    ;; Query time: 38 msec
    ;; SERVER: 8.8.8.8#53(8.8.8.8)
    ;; WHEN: Tue Jan  7 13:13:36 2014
    ;; MSG SIZE  rcvd: 110
    
    
     
  8. cPanelMichael

    cPanelMichael Forums Analyst
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    Feel free to open a support ticket using the link in my signature so we can take a closer look. You can post the ticket number here so we can update this thread with the outcome.

    Thank you.
     
  9. Cloud9

    Cloud9 Active Member

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    Thanks Michael
     
  10. Cloud9

    Cloud9 Active Member

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    Ticket ID 4438681
     
  11. cPanelMichael

    cPanelMichael Forums Analyst
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    To update, it was found that the third-party application MailScanner was installed on this system. While not necessarily the cause of this issue, we asked the customer to disable it to see if the issue continues.

    Thank you.
     
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