Important things to note on Exchange 2013

  • Can’t migrate from Exchange 2003 directly to Exchange 2013.
  • You need SP3 installed for Exchange 2010 and latest roll up update for Exchange 2007 when migrating to Exchange 2013.
  • Can run on Server 2008 R2
    • Need more pre-requisites installed compared to Server 2012
  • No longer 5 roles – Broken down to Client access and Mailbox role.
    • Unified messaging included in mailbox role.
    • Currently no Edge server but Exchange 2010 Edge server can be used with Exchange 2013.
  • Only 50 databases can be mounted on a mailbox server – Exchange 2010 could mount up to 100.
  • Public folders are no longer replicated in multi-site environment. It will be located in one location.
  • Exchange 2013 is much less resource intensive with regards to IOPS on disks, so cheaper disks can be used for your Exchange server. There is approximately a 99% IOPS reduction compared to Exchange 2003.
  • Web App now can now be used offline.
  • Built-in anti-malware (Previously only anti-spam).
  • Automatic failover to DR site.


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