Having some trouble getting to the admin panel on MIAB running on an VM Network (running a dedicated server with ESXI, Routes requests to it’s internal network which are then routed to the appropriate guest).
Everything installed correctly and all the services are all running, However whenever i try to get to the /admin route for the post-installation setup i get stuck in a redirect loop.
EDIT - Just to clarify, the issue occurs when I’m trying to get to mail.mydomain.com/admin to set up users and all that other stuff. MIAB is installed, running and requests are going to the correct guest VM, but a redirect loop is preventing /admin from loading.
Currently the routing goes like this;
- Open internet > ESXI Host > Debian “bounce box” running NGINX > Guest VM
the bounce box is running NGINX for reverse proxy, All it does is listen for a request, upgrades to https if required and passes the request on to the correct vm (will be adding the other entries for mail later), I think somewhere between this proxy pass and the MIAB’s internal proxy pass there’s a loop but i can’t for the life of me figure it out 
All the MIAB config is unchanged out of the box, Here’s the nginx config for the mail server on the bounce box;
server {
listen [::]:80;
listen 80;
server_name mail.[redacted].com ;
location /.well-known/acme-challenge {
root /var/www/letsencrypt;
try_files $uri $uri/ =404;
}
location / {
rewrite ^ https://$host$request_uri? permanent;
}
}
server {
listen [::]:443 ssl http2;
listen 443 ssl http2;
server_name mail.[redacted].com ;
ssl_certificate /etc/letsencrypt/live/mail.[redacted].com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/mail.[redacted].com/privkey.pem;
include nginx_ssl.conf;
location / {
proxy_pass http://10.0.1.6;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
}
}