For many years TransVault has offered the ability to perform selective migrations that enable organizations to only move the data that is required to meet business and legislative retention needs.
But more often than not, when emails get migrated, we've noticed the tendency is to move everything. Why?
Although most email archive applications offer lifecycle management, organizations (or rather, individuals in the IT department) are reluctant to ‘press the button’ when emails expire their retention date.
Often the legal department is not properly engaged with the process and does not give a strong enough directive (backing) to the IT department to delete records.
Similarly, although the IT department may have implemented retention periods, when it comes down to pressing the ‘final delete’ button, they err on the side of caution and just keep it anyway.
So the concept of not migrating all your archive (the inference being that you will somehow be getting rid of what is being excluded from the move - see fact 3) will most probably be a non-starter: your organization will most likely want to take everything if/when it migrates….
Fact 2. Culling your data prior to migration based on anything other than headline meta-data, such as date and custodian, is labor-intensive and risky.