I found a problem - when i wanted to change user password and use polish characters "łóóó" or something like this i receive "internal server error"
Currently it's not allowed and not a good idea to use non-ascii characters as password.
I will try to fix this. Thanks for your report. 
I can't login using both accounts.
Error: Username or password is incorrect.
Fixed. Someone deleted testing accounts.
]]>Error: Username or password is incorrect.
]]>We're so sorry that iRedAdmin full-featured edition is delayed for more than two weeks, but it's ready to release iRedAdmin-1.0 now.
We will continue testing for about one week, hope to fix bugs and make it stable enough. but we need your help to test it, so that you can get a perfect version.
Demo is available:
- URL: http://demo.iredmail.org/iredadmin-ent/
- Username: postmaster@example.com (global admin), postmaster@test.com (normal admin)
- Password: iredmail
Note: It's not allowed to modify preferences of these two accounts, if you want to test to change admin preference, please create a new admin account and then login with the new one.
Ability to create, modify, delete mail domains, users, lists, aliases, admins.
Unlimit number of mail domains, users, lists, aliases, admins.
Domain admin assignment.
Mail list and alias management.
Per-domain and per-user bcc control, include recipient bcc and sender bcc.
Per-user service control (pop3, imap, smtp, deliver, etc).
Per-user mail forwarding control.
Global LDAP address book control, available for mail user, list, alias.
Password length control.
Reset user/admin password.
Per-user i18n support with Jinja2 template engine.
Per-domain and per-user mail relay/transport control.
Per-user maildir path control.