Directory Synchronization allows you to securely automate the management of Mimecast users and groups using your company directory, whether that be hosted on-premises or in the cloud. Integrating your company's directory with Mimecast has a number of benefits, ranging from feature enablement to reducing the administrative overhead of configuring and maintaining Mimecast features.
On Premises Exchange
If you have an on-premises Exchange environment the following options are available for you.
Using an inbound LDAP(S) connection, Active Directory users and groups are automatically synchronized to Mimecast. This requires a firewall change to allow connectivity from Mimecast to your Domain Controllers.
Using the Mimecast Synchronization Engine and a secure outbound connection from your internal network, Active Directory users and groups are securely and automatically synchronized to Mimecast.
If your organization uses Office 365 or is already synchronizing an on-premises Active Directory to Windows Azure, Mimecast offers a cloud to cloud Azure Active Directory Sync to allow you to automate the management of your users and groups.
If your organization uses Domino Directory Mimecast offers a LDAP Sync feature to automate the management of your users and groups.