大家好！owa访问exchange 2003经常出现“Service Unavailable” 但偶尔又能正常够登录和访问，并且此时的rpc over https也不能使用了，通常在下班后故障没有那么频繁出现。怀疑与服务器繁忙有关。查了httperror 日志如下，请问怎样解决此问题？环境：exchange 2003 with sp2 ;windows2003 R2 with sp2.
谢谢！
s-port cs-version cs-method cs-uri sc-status s-siteid s-reason s-queuename
443 HTTP/1.1 RPC_OUT_DATA /rpc/rpcproxy.dll?MAIL:6004 - 1 Connection_Dropped DefaultAppPool
443 HTTP/1.1 RPC_OUT_DATA /rpc/rpcproxy.dll?MAIL:6001 - 1 Connection_Dropped DefaultAppPool
443 HTTP/1.1 RPC_OUT_DATA /rpc/rpcproxy.dll?mail.dn.com:6004 - 1 Connection_Dropped DefaultAppPool
443 HTTP/1.1 RPC_OUT_DATA /rpc/rpcproxy.dll?MAIL:6004 - 1 Connection_Dropped DefaultAppPool
443 HTTP/1.1 RPC_OUT_DATA /rpc/rpcproxy.dll?MAIL.dn.com:6001 503 1 ConnLimit DefaultAppPool
443 HTTP/1.1 RPC_OUT_DATA /rpc/rpcproxy.dll?MAIL.dn.com:6001 503 1 ConnLimit DefaultAppPool
443 HTTP/1.1 RPC_OUT_DATA /rpc/rpcproxy.dll?MAIL.dn.com:6001 503 1 ConnLimit DefaultAppPool
lintian
