When I do an import into MLM will it just import the emails and NOT send a confirm?
Yes, just importing, no email sent. To make MLM send emails you have to select 'Send Invitations'.
Do I import them into MaxBulkMailer first, then import them into MLM?
I believe it is better. If you import first into MaxBulk Mailer your list will be checked and you can preview it, then just upload it to MLM. You can of course upload directly to MLM if you prefer.