Ran the iRedMail setup on a new server, installer finished correctly, it told me to login with postmaster mail.
But the webmail client reports DATABASE ERROR: CONNECTION FAILED!
I look into it and it seems like the user-accounts (vmail and vmailadmin) in MySQL was not created correctly. The databases and table-structure where created correctly.
When I try to create them manually with the passwords expected from iRedMail.tips MySQL complains that the passwords are not complicated enough and missing special chars. (It can't only be letters and numbers)
I am guessing the install-script did not catch the error that the users where not created correctly.
Running Ubuntu 16.04.3 LTS with MySQL 5.7.21-0ubuntu0.16.04.1