To access it via IRC use these settings
Server: chat.delphijustin.biz
Channel: #delphijustin
You can also use TeamSpeak if you want to speak. The server is the same and the default channel is delphijustin without the # symbol.
Here are some tutorials on how to setup TeamSpeak client
Possible ways to get chat notifications when you are offline:
Use an IRC Chat bouncer, for security reasons I don’t host any bouncers on my servers. You can get ZNC or JBouncer