I'm not the developer of messagebot, so popoklopsi can tell you more about the exact technical details. Messagebot, by default, uses http(s) requests to login and send a message. Hence it has no direct connection to steam. We would need some kind of master slave configuration for this where the master periodically fetches the messages and relays them. The problem is that you have to somehow share the session, messages and other information between multiple servers and account to what happens if the master goes down. This is complicated and
we have chosen not to use a master / slave configuration before releasing it. What we have though (in the development version) is a new report handling feature which can send messages when the report was handled in-game. Maybe this is something for you?
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