A simple example for using nginx as a TLS proxy in front of a binkp mailer. You can add it to your nginx.conf. Don't put it inside the http block. Put it above or below the http block (if there is one):
Hah, I should have read through all the messages before I responded. Yup, nginx, HAProxy, and and a number of others can do this on the same or other boxes/hardware & you can get some of this stuff now for "free". Get the ACME stuff configured right and everyone just has certs signed by Let's Encrypt and off you go.
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NuSkooler
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