Hi problem with mapping port 25 when publishing server mail server event id is 14163 I've tried to disable socket pooling with ( reference these url for coomands)http://www.microsoft.com/isaserver/using/tips/socketpooling.asp http://www.isaserver.org/shinder/tutorials/socket_pooling.htm C:>mdutil set -path smtpsvc/1 -value 1 -dtype 1 -prop 1029 -attrib 1 but i get an error SetValueByDataType failed - HRES(0x80070057) ERROR_INVALID_PARAMETER is there another way to disable socket spooling on smtpsvc Can anyone help --------------------------------- Do You Yahoo!? Get personalised at My Yahoo!.