Gravity Forms “**Forbidden. Sender Blacklisted**” Error

  • Hello,

    Some of our clients have tried to submit a form on our website (https://inkfactorystudio.com/) and gotten an error message on submission: “Forbidden. Sender blacklisted”.

    We work with this company a lot, and several of their colleagues use the same domain name, systems, etc. Please let us know if there’s any more information needed to apply a fix.

    Thank you!`

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