By default, when Exchange 2007 is the Source server, we will export the data using EWS.To force all mailboxes within a connector to use WebDAV:
- Sign in to your MigrationWiz account.
- Click on Dashboard.
- In the Mailbox Migration section, click on Perform mailbox migration.
- Select your Mailbox Connector.
- From the Task menu, click on Edit connector.
- Click on the link Show Advanced Options.
- For the field Support Only Options enter MustUseWebDav=1.
If you switched the export method after a migration has begun, your migration will fail with an error stating so. If this is intentional, contact our Support team.