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I have a server running Exchange 2007 on Windows 2003. &nbsp;Lately we have noticed a lot of traffic being generated by port 1144 from the exchange server to other PC's. &nbsp;Running netstat on the server it seems this is being generated by MSExchangeIS.<br />
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&nbsp; TCP &nbsp; &nbsp;SERVERNAME:1144 &nbsp; &nbsp; &nbsp; &nbsp; PCNAME.???.co.uk:1966 &nbsp;ESTABLISHED<br />
&nbsp; TCP &nbsp; &nbsp;SERVERNAME:1144 &nbsp; &nbsp; &nbsp; &nbsp; PCNAME.???.co.uk:2623 &nbsp;ESTABLISHED<br />
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Is this normal activity. &nbsp;<br />
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I have a server running Exchange 2007 on Windows 2003.  Lately we have noticed a lot of traffic being generated by port 1144 from the exchange server to other PC's.  Running netstat on the server it seems this is being generated by MSExchangeIS.

  TCP    SERVERNAME:1144         PCNAME.???.co.uk:1966  ESTABLISHED
  TCP    SERVERNAME:1144         PCNAME.???.co.uk:2623  ESTABLISHED

Is this normal activity.  



MSExchangeIS and Port 1144

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.