Using the ZCS Migration Wizard

Even though the ZCS Migration Wizard can be run from start to finish without stopping, Zimbra recommends that after the accounts are migrated you stop. Before proceeding, change the mail relay information to point to the Zimbra server instead of the Lotus Domino server. This will prevent any lost mail while the files are being imported.

Note:

After the files have been imported to the Zimbra server, you should verify that the import was successful before deleting the Lotus Domino accounts.