This is the output from netstat -a. Why Outlook opens so many RPC connections to 
multiple Exchange servers even though only mailbox is configured in Outlook profile? 

The problem we have encountered here is kind of strange to us. We moved all mailboxes 
and public folders from one server (EXCH01) to another, then we powered off EXCH01 
(the plan was to delete it from the site to retire it), we wanted to wait for couple 
days to see if everything went okay. Users that their mailboxes were moved complained 
Outlook login process took a long time and run very slow. Run netstat on the user's 
machine. We found Outlook still wanted to talk to EXCH01. The only way to solve this 
slow performance problem is to power EXCH01 back on. Now we have powered it on and 
users said the slow performance problem is gone. Not sure why Outlook still needs to 
talk to the old home server EXCH01. There is nothing on EXCH01. Anyone has similar 
problems or experiences please advise. Thanks.

C:\>netstat -a

TCP    WKS001:3728      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3729      EXCH03:1043  ESTABLISHED
TCP    WKS001:3730      EXCH03:1043  ESTABLISHED
TCP    WKS001:3731      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3733      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3734      EXCH03:1043  ESTABLISHED
TCP    WKS001:3735      EXCH03:1043  ESTABLISHED
TCP    WKS001:3736      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3738      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3739      EXCH03:1058  ESTABLISHED
TCP    WKS001:3742      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3743      EXCH03:1058  ESTABLISHED
TCP    WKS001:3744      EXCH02:epmap  TIME_WAIT
TCP    WKS001:3745      EXCH02:1078  ESTABLISHED
TCP    WKS001:3746      EXCH04:epmap  TIME_WAIT
TCP    WKS001:3747      EXCH04:1055  ESTABLISHED
TCP    WKS001:3748      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3749      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3750      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3751      EXCH03:epmap  TIME_WAIT
TCP    WKS001:3752      EXCH01:epmap  TIME_WAIT
TCP    WKS001:3753      EXCH01:1063  TIME_WAIT

Phillip Yan
Computer Services

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