Hi Jane,
If you had originally set the webinar registration limits, and used Online Recording to tie the same / original registration preferences to the follow up email with recording link, then all the original restrictions would still apply.
Alternatively, you may upload the recording separately to the My Recordings section, then include that link in the follow-up emails if you wanted to have unrestricted access for Attendees to stream on demand. You would have to edit the follow-up email setting to include the webinar recording before the email was set to send out-- 1 day should be plenty of time.