Recently, Google started blocking subscription requests from other servers to their XMPP-based Google Talk network. Hence, users on non-Google servers can add Google Talk users to their rosters, but they won't see whether the Google Talk users are online or not. However, nothing changes for Google Talk users; they are still able to see the online state of all users on non-Google servers on their rosters.
In order to further reduce abuse of this server for sending unsolicited messages, in-band registration (XEP-0077) has been disabled. To register an account, please use the registration formular on this page. In case of any problems please use the contact form and describe what happened.
Due to a hardware failure, the server running jabber.rueckgr.at must be replaced by a new one. Unfortunately, this will lead to some service downtime during the next week. Please be patient while everything will be done in order to restore all the services as soon as possible. Sorry for any inconvenience.
Update: Maintenance work has been completed on June 26. Since then, all services are up and running without problems.
Furthermore, a problem regarding the creation of accounts via the web page has been fixed.
On 18/19 February 2012, all XMPP services on jabber.rueckgr.at and jabber.rückgr.at will be migrated to a new server. From user perspective, nothing will change. However, there will be a (short) downtime of all XMPP services and the webpage on that weekend. If everything goes right, the migration will only take a few minutes. However, if anything goes wrong, the services may be disrupted for up to a few hours. I apologize for any inconvenience.
Since yesterday afternoon, the Jabber server seems to work like a charm, let's hope it'll continue to do so. Sorry for any inconvenience caused by the stability problems. Please report any ongoing problems via the contact form.