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Email received with no Sender Domain or Sender

Discussion in 'E-mail Discussion' started by GQsm, Sep 6, 2018.

  1. GQsm

    GQsm Member

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    One of my clients received an email today with no Sender Domain, Sender or From in the headers. How can I block this kind of spam without blocking the IP (as an Outlook.com server could send legitimate email too)?
    There seems to be nothing else to blacklist, surely this can't be right.

    This is the info from Mail Delivery reports.

    Event: success success
    Sender User: -remote-
    Sender Domain:
    Sender: <>
    Sent Time: Sep 6, 2018 2:40:14 PM
    Sender Host: mail-bo1ind01hn0209.outbound.protection.outlook.com
    Sender IP: 104.47.xxx.xxx
     
    #1 GQsm, Sep 6, 2018
    Last edited by a moderator: Sep 6, 2018
  2. cPanelLauren

    cPanelLauren Forums Analyst II Staff Member

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    HI @GQsm

    Is there anything of use in the actual headers of the message? You really can't block it without having *something* to block if the IP is not able to be blacklisted.

    Thanks!
     
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