I am testing batch migrations from Zimbra to Office 365. I ran one sucessful migration to test connectivity to the server etc. In the CSV file, I supplied the user's information and password. No issues with the migration - worked as it should.

I am trying to setup my batch CSV files using administrator credentials so I do not need to know every user's password on Zimbra. The administrator account has the necessary permissions to access the user mailboxes. What format is needed in the CSV file for to use the administrator credentials?

I have tried what is mentioned here: Prepare a CSV File to Migrate E-mail from an IMAP Server

However, Zimbra did not like the format adminuser@my.email*student@my.email format and the batch failed. I used the adminuser's password in the CSV file.

Could anyone share what they have tried in the batch CSV file to use administrator credentials?