Connection limitation from IM gateway to MSN?

Openfire Plugins Kraken - IM Gateway
1

We have adopped openfire and connected to MSN through IM gateway(gateway.jar).

After around 250 users connectd to the MSN through IM gateway, all the connections were dropped and none of connection was accepted after that.

I wonder if there is a connection limitation on free version of openfire(gateway.jar) or MSN.

2

IM Gateway is now known as Kraken IM Gateway, so you should ask at http://kraken.blathersource.org/

Maybe this is a limitation on MSN servers, the number of logged in users from the same IP. Just a wild guess.