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https://blog.it-kb.ru/2016/03/01/migration-exchange-server-2003-to-exchange-server-2013-part-3-prerequisites-install-preparation-and-upgrade-exchange-2010-to-exchange-server-2013/
Миграция с Exchange Server 2003 на Exchange Server 2013. Часть 3. Обновление до уровня Exchange Server 2013