If you want to allow for mail-in entries (in addition to electronic via the landing page), ensure that your Official Rules include language that entrants can send a postcard with their name and email address to be entered.
Navigate here by going to your Campaign Builder > Customize > Rules > Edit (Optional) and placing this information in the "How to Enter" area.
Here is an example:
Ensure you have a system for accommodating those mail-in entries, as you'll either need to:
1. Manually enter them into the landing page to give them a fair shot of winning the prize (and receiving marketing emails). Use your brand's tracking link to assure your entries are being attributed to your brand's analytics.
2. Gather all of your mail-in entries in a spreadsheet and send it to DojoMojo. We will then add it to your general entry list so you can select a winner.