Blacklisting on CBL, Spamhaus etc

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This topic contains 1 reply, has 1 voice, and was last updated by  Johnny de Kock 4 months, 3 weeks ago.

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  • #64125

    Johnny de Kock
    Participant

    Hi there

    Please can you help I am a NewB so please excuse my question if it has already been requested before, we are constantly being black listed and we use MXToolbox to check our listings.We are currently running ZeroShell 3.6

    I am not sure why we are being blacklisted, Our AV is all up to date and all PC’s are up to date with MS Updates etc.

    Please could you advise what we can look for via ZeroShell to see what might be causing this issue.
    I would also like to block all users from using port 25 to send email via SMTP port 25.

    Could you please advise me.

    Much appreciated

    Regards,

    Johnny

    #64137

    Johnny de Kock
    Participant

    Please can anyone assist with this

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