If you have a file with your contacts you can easily upload that to Punchbowl to and quickly build your recipient list.
1. The first step is making sure the file is saved as a .csv. If not you can open your file, select "Save as" and choose the CSV (Delimited)
2. The file should have at least one column with contact(s) email address. A second column can be included with the contact name. The columns should be titled Name