Drip Campaign vs Autoresponder: What's the Difference?

An autoresponder sends a fixed, predetermined sequence of emails to everyone who triggers it - typically simple, one-size-fits-all messages like a welcome email or an immediate thank-you after a sign-up, sent the same way regardless of what the recipient does afterward.

A drip campaign also sends a series of emails automatically over time, but it's built to adjust based on subscriber behavior - someone who opens and clicks can be routed down a different path than someone who ignores the email entirely, making it a more sophisticated, behavior-responsive system than a fixed sequence.

In casual use the two terms are often applied interchangeably - a drip campaign is sometimes just called an autoresponder, and both fall under the broader label of automated or lifecycle email. But the meaningful distinction is in whether the sequence branches: an autoresponder is content to fire the same messages at everyone regardless of how they engage, which suits simple, one-off communications like onboarding a new sign-up. A drip campaign is built specifically to track engagement and adapt the next message to it, which suits ongoing nurture sequences where the goal is moving different subscribers toward conversion by different paths depending on their actual interest level. Choosing between them comes down to whether the message truly needs to be the same for everyone, or whether behavior should change what gets sent next.