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  1. A

    TLS Hardening

    Hi Christian - Thank you for your comment. Since we leverage opportunistic TLS, will it not simply fallback to sending an unencrypted message if it is not possible to do so using strong encryption? Let me know your thoughts.
  2. A

    TLS Hardening

    Thanks! Does location of where I dump the new config in main.cf.in matter?
  3. A

    TLS Hardening

    Thank you for these additional details. Just so I'm completely clear, can you confirm the below steps are accurate? 1. Copy /var/lib/pmg/templates/main.cf.in to /etc/pmg/templates/main.cf.in 2. Edit /etc/pmg/templates/main.cf.in and add the config I referenced in my post 3. Save...
  4. A

    TLS Hardening

    Hi Guys, We ran a vulnerability scan against our ProxMox Mail Gateway (5.0-61) and it came back with several issues all relating to TLS. Summary of the issues below: 1. TLS 1.0 supported, which is insecure 2. TLS 1.1 supported, which is insecure 3. SSL Anonymous ciphers supported After some...

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