==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.3
- Linux/BSD distribution name and version: CentOS 7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- Related log if you're reporting an issue:
====

When attempting to access any webUI from the external network (sogo or iredadmin) I get "error, connection refused" when entering "externalip:81/sogo". The router is configured to accept port 81 and re-route it to port 80 on the server. Everything works fine on the internal network (the same network as the server). Not sure what other information you need to help me out here so please feel free to ask away anything you need to know.