==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.6 MYSQL edition
- Linux/BSD distribution name and version: Ubuntu 16.04 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? No
- Related log if you're reporting an issue:
====
I have a problem connecting to mysql after iredmail install on fresh system.
RoundCube and iRedAdmin is working correctly and i can connect to mysql from command line with user vmail and password from iredmail.tips file.
But when I try to connect as root user i got
ERROR 1698 (28000): Access denied for user 'root'@'localhost'
P.S. password is 100% correct. i tried to connect million of times 
I even reinstall whole system+iredmail for 5 times...