If you archive from a Microsoft Exchange Server 2013 organization, the following lists the required versions of Enterprise Vault:

• Targeting Microsoft Exchange 2013 servers when the Exchange Organization is in native mode requires Enterprise Vault server 10.0.3 or later.
• Targeting Microsoft Exchange 2013 servers when the Exchange Organization is in mixed mode or upgraded native mode (that is, it was once in mixed mode) requires Enterprise Vault server 10.0.4 CHF1 or later.