Hello ,
what is the BEST scenario ( fastest , most efficient , most secure in terms of data loss ) , to migrate from exchange 2007 ( one server , all exchange roles installed on this server , 1200 mailbox ) , to exchange 2013 ?
knowing my environment needs to be connected to their mailboxes , 24/7 !
it's very frustrating .
and i have no clue even if this is the right place to post about this , if not please refer me as to where to post .
Also , All my domain controllers are 2008 .