Sometimes even your most ardent supporters need a reminder to take action on an email you sent them. That's why you should strap on your boots and send a follow up email called a kicker.

In March, Freedom to Marry launched a Say, "I Do" campaign, with an open letter calling on President Obama to publicly support marriage for same-sex couples. The initial signers included celebrities like Ellen and Portia DeGeneres, civil rights heroes like Julian Bond, and tech leaders like Twitter co-founder Jack Dorsey. We then asked our supporters via email, Facebook, and Twitter to co-sign the letter. But we knew that we also needed to reach new potential supporters.