Spam emails from non-exists my domain accounts.

Discussion in 'General' started by Uzumymw, Dec 1, 2016.

  1. Uzumymw

    Uzumymw New Member

    I've got another problem with spam. Existing mailboxes receive some spam from non-exists my domain accounts.
    For example: my domain is, spam sent from non-exists account [email protected] to exists [email protected]

    In the logs I seen some entries like this:
    postfix/smtpd[9569]: Anonymous TLS connection established
    Whether this is a hack? How to block / secure this?
  2. Jesse Norell

    Jesse Norell ISPConfig Developer Staff Member ISPConfig Developer

    If you are running ispconfig, check your Server Config for the mail server and ensure you have 'Reject sender and login mismatch' enabled.
  3. Uzumymw

    Uzumymw New Member

    Thanks for reply! I enabled "Reject sender and login mismatch" option.

    And what about "Anonymous TLS connection" What is that mean ?

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