==== Required information ====
- iRedMail version (check /etc/iredmail-release):  0.9.4
- Linux/BSD distribution name and version: Ubuntu 14 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  mysql
- Web server (Apache or Nginx): apache
- Manage mail accounts with iRedAdmin-Pro? Yes
- Related log if you're reporting an issue:

May 04 11:50:13 dict: Error: dict sql iterate failed: Not connected to database
May 04 11:50:14 dict: Error: mysql(127.0.0.1): Connect failed to database (vmail): Access denied for user 'vmailadmin'@'localhost' (using password: YES) - waiting for 5 seconds before retry
May 04 11:50:14 dict: Error: mysql(127.0.0.1): Connect failed to database (vmail): Access denied for user 'vmailadmin'@'localhost' (using password: YES) - waiting for 5 seconds before retry
May 04 11:50:19 dict: Error: mysql(127.0.0.1): Connect failed to database (vmail): Access denied for user 'vmailadmin'@'localhost' (using password: YES) - waiting for 25 seconds before retry
May 04 11:50:19 dict: Error: mysql(127.0.0.1): Connect failed to database (vmail): Access denied for user 'vmailadmin'@'localhost' (using password: YES) - waiting for 25 seconds before retry
====

Everything seems to be working fine, but I keep seeing this log entry in dovecot.log, and I am not sure where the problem is.  Please advise.