The license for Efflux Migrator is one-off which is valid for one complete migration. The licensing model is based on the number of mailboxes which will be migrated. Once a mailbox is migrated, it consumes one number of mailbox from the license. Now regardless of the number of mailboxes that you purchase, only one license key will be issued. This key will contain information on number of mailboxes which will be validated with our activation server. Efflux Migrator can be run several times for multiple migration jobs using same license key until you consume all the mailboxes. For additional mailboxes you can always purchase an upgrade to upgrade the capacity of your license.
The free trial is limited to two mailboxes that can be used to test Efflux Migrator for 30 days.