Keep adding on new campaign members with status new to same campaign and email should be sent daily (from start date to end date of campaign ) to all newly added campaign members.
On next page make sure you check the check the checkbox against recurring campaign. Click Save
It will redirect you to Campaign page. Now add the Campaign member with the status new.
Click on Button Schedule Via MassMailer again and this time it will take you to the below page.
Click schedule Later button. It will take you to following page.
Enter Schedule Start Date and Schedule End Date.