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  • June 5, 2023Action Required

    Retiring legacy versions of Transport Layer Security (TLS) protocol

    Transactional

    What

    As of July 18, 2023, Mailchimp Transactional will no longer support Transport Layer Security protocol (TLS) v1.0 and v1.1. We already support TLS v.1.2 and above. If you're not using TLS v1.2 or above, this may require coding changes.

    Why

    TLS v1.0 and v.1.1 have been sunsetted so we are making the corresponding changes.

    When

    July 2023