I'm a bit confused about maxchannel and maxring definitions. What's the diferences of: smtp/*.edu maxchannel=15 maxring=5 vs smtp/*.edu maxchannel=199 maxring=5 I want to limit the maximun number of transport agents for the channel to 5. I know that this is possible with maxring, but I don't know what's the meaning of maxchannel here. /alfredo