Legacy Archive Data Management Processing

Document created by user.oxriBaJeN4 Employee on Sep 7, 2015Last modified by user.oxriBaJeN4 Employee on Mar 27, 2017
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Now that the Legacy Archive Data Management data has been sent to Mimecast, the following steps are completed by the Mimecast team.


Receive and Prepare

Once the data has been received, and the file/folder data has been reviewed, you will be notified.  Any obvious issues with the file names, types, groupings, etc. are reported to you for resolution. The data is then transferred to the Legacy Archive Data Management environment and is queued for processing.


Process and Ingest

Once the data is received it is prepared and queued for processing.  The per-user (PU) data process requires the user account to exist before Ingesting into it.  Those that don’t (e.g. ex-employees) are reported to you as Bad Addresses before they can be imported.  Within each address entry in the report, you must enter the correct address to Ingest the data into, or specify Create next to each address(es) for which the account needs to be created in the customer’s Mimecast system.  Any new accounts created for import do not affect the user licensing of your Mimecast service, and are accessed in the same way as current users accounts.


All standard message types are extracted from PSTs, imported into your archive and indexed. The data becomes available as it is processed.

Message metadata, including the PST folder path, is recorded by default for every message extracted from PU PSTs only.  This is imported to display the messages in their folders for customers that have subscribed to the use the Folder Sync feature.

Message Retention

Data is retained in the archive for the length of the purchased retention period, based on the Sent Date of the email as found in the message header. A message that predates the maximum retention period will not be visible.


The maximum retention setting can be viewed within Administration | Account | Account Settings menu in the Administration Console.


Contact your Mimecast representative if you require the retention period to be adjusted.


Next Step: Complete and Verify

The final step in the Legacy Archive Data Management process is to verify the imported data.