==== Required information ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version: UBUNTU SERVER 14.04.3 LTS
- 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:
====

I have two servers and some how I configured the DNS settings wrong. I can't access the main server where the web hosting is at the default domain, example.com. The other server is mx.example.com and I can access it via the mail and the admin panel but I cant send or receive emails.

I created an a record mx.example.com in the dns networking page on digital ocean with the ip address of the second server. I then created an mx record mx.example.com and still having the issue.

Is there a something else I have missed?