Ejabberd can't connect to users

Ejabberd can't connect to users

I installed ejabberd on my remote server running centos 6.4 and open all
ports required. For example I can access the web admin when i go to
http://IP_ADDRES:5280/admin.
With the following command I added a new user:
ejabberdctl register admin localhost password
user admin can login at http://IP_ADDRES:5280/admin with username:
admin@thelocalhost password: pass
but now I want to connect to this user with adium. I entered jabber id and
password and in the options pane i entered the ip address of the 'connect
server'. However adium keeps returning an error: "unable to connect" and I
can't find anything in the ejabberd logs. Can anybody help me with this
problem?