The community non-profit organization that I work with would like to begin sending an automated email to new contacts when they sign up for any of our mailing lists. It seems drip campaigns are the favorable way to do so because, unlike Welcome Emails, drip campaigns can be triggered when contacts are manually added to a list. I want to make sure that if a contact joins multiple mailing lists for our organization, they will not be sent multiple welcoming emails. Will drip campaigns automatically correct for this? Or is there a setting I can trigger to ensure multiple of the same email are not sent to the same address? ... View more