### HAProxy (community supported)

!!! warning
    This is an unsupported community contribution. Feel free to provide fixes.

**Important/Fixme**: This example only forwards HTTPS traffic and does not use mailcows built-in ACME client.

```
frontend https-in
  bind :::443 v4v6 ssl crt mailcow.pem
  default_backend mailcow

backend mailcow
  option forwardfor
  http-request set-header X-Forwarded-Proto https if { ssl_fc }
  http-request set-header X-Forwarded-Proto http if !{ ssl_fc }
  server mailcow 127.0.0.1:8080 check
```