Does plane CE support ACME and https?

[gadarsoe]

I am having a challenge trying to get up plane CE running on AWS with https on custom domain. http is working fine.
First, I am not sure how the plane proxy, which seems to be Caddy, will does ACME. The moment I put in a value for CERT_EMAIL, it will throw error like

Error: adapting config using caddyfile: /etc/caddy/Caddyfile:22: unrecognized global option: [email protected].

I tried to change the following 2 env variables, but the same error persists. The APP_DOMAIN variable has been changed to desired domain and the DNS has been added to point to the public IP of Plane host.

WEB_URL=https://${APP_DOMAIN}
CORS_ALLOWED_ORIGINS=https://${APP_DOMAIN}

Appreciate some help here as I have been struggling for 2 days. Is that supposed to work with the plane proxy or am I supposed to setup external reverse proxy?