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References
- ↑ Enterprise, I. D. G. (2006-02-20). Computerworld. IDG Enterprise.
- ↑ Redmond, Tony (2007). Microsoft Exchange Server 2007 . Burlington, MA: Digital Press. pp. 700. ISBN 9781555583477.
- ↑ Stanek, William (2008-04-30). Microsoft Exchange Server 2007 Administrator's Pocket Consultant. Microsoft Press. ISBN 9780735698208.
