According to what i3D just sent me, there will be network maintenance on June 9th. The downtime shouldn’t be long. Here is a screenshot of information that was sent to me.

The team behind cryptoworld.is has now brought netizens of the world another great XMPP/Jabber provider. We are currently in testing stages running Prosody on Debian Jessie. You can use your favorite Jabber/XMPP client to register an account, as we are fully open to registration. Further details about the service and guides on how to connect will be released further down the road. But for now, we hope you enjoy having your own @xmpp.is account!