==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.8 OPENLDAP edition.
- Linux/BSD distribution name and version: Ubuntu 16.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Web server (Apache or Nginx):Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

I have iredmail running with ldap (Active Directory) and want to route mail for another domain to this server too.
This second domain is solely a mail domain.  Doesnt have ldap.
If I had the additional domain and create users, they cant login to webmail - because its looking for ldap account info.

How do I go about adding this second domain to the same server? 
Do I add the domain in iRedAdmin and have the mail delivered to the ldap mailboxes using the additional mail addresses field in ldap? 
Not sure how this should be configured.  Any advice?

Cheers.