What a drip campaign is
A drip campaign is a set of messages sent one after another on a schedule, usually triggered when someone joins a list or takes a particular action. The name comes from the idea of releasing information gradually, like drops, instead of all at once.
It is a form of marketing automation. Once built, it runs by itself for every new person who enters. Examples include a five-part email course on a topic, a series introducing a new service, or a set of onboarding tips after someone signs up to software.
A drip campaign is related to, but different from, a welcome series. A welcome series is about orientation in the first days. A drip campaign can run for any purpose and any length, such as teaching, nurturing interest or guiding a new customer.
When a drip campaign makes sense
Drip campaigns suit content that works better in stages:
- A topic that takes several steps to learn.
- A product that new users need to learn gradually.
- A longer decision process, where people want information over time, which is a part of lead nurturing.
- Onboarding after a purchase, as part of the post-purchase journey.
They suit less well when the information is urgent, when each customer’s situation is very different, or when you have little to say. Sending messages only to keep a schedule is a poor reason to send them.
Plan the goal first
Write down, in one sentence, what the campaign is meant to do and who it is for. For example, “help new customers get their first result from the product” or “give people who downloaded a checklist a short course on the topic”. A clear goal tells you which messages to include and which to cut.
Decide what counts as success in measurable terms you control, such as replies, clicks to a key page, bookings or completed steps. Avoid promising yourself a particular outcome; results vary with audience, offer and execution.
Plan the sequence
Outline the messages
List each message with its purpose and one main point. A good sequence has a logic: each email should make sense on its own, yet build on the one before. A simple arc is:
- Deliver what was promised and set expectations.
- Teach or show something useful.
- Address a common problem or question.
- Offer an example or story.
- Invite a next step.
Keep emails focused on one idea each. If one email contains five ideas, split it.
Decide the spacing
Spacing is a judgement call, and there is no figure that works for everyone. Consider:
- How much there is to absorb. Complex lessons need longer gaps.
- How urgent it is. Time-limited information needs closer timing.
- How well people know you. Newer contacts may prefer a lighter touch.
- What else you are sending. Check overlap with newsletters and other automations so nobody gets several messages in one day.
An illustrative example: a five-email course sent on days 0, 2, 5, 9 and 14. That has widening gaps, which many people find comfortable, but this is only an example. Start with a reasonable assumption, then watch behaviour and adjust. If you want to compare two schedules, A/B testing requires a reasonable sample size, which many small lists do not have, so be careful about drawing firm conclusions from tiny differences.
Set the rules
Use triggers, conditions and actions to make the sequence respond to people:
- Entry: who qualifies, and can they enter again?
- Exit: stop the sequence if they buy, book, reply or unsubscribe.
- Branches: optionally send different follow-ups to people who clicked and people who did not, using contact tags.
- Pause: avoid sending during a period when the same person is already in a promotion flow.
Sketching these on an automation map before you build helps you see loops and gaps.
Write for people, not the schedule
- Use your normal brand voice and plain language.
- Write subject lines that describe the email honestly.
- Keep one clear call to action per email.
- Make each message useful even if the reader has missed the others.
- Offer a real reply address.
- Follow accessible email basics such as readable text and meaningful link text.
Avoid false urgency and exaggerated claims; they erode trust and may break advertising rules in some places.
Consent and privacy
A drip campaign assumes people have agreed to hear from you. Marketing permission rules vary by country and change, and some places have specific requirements for how consent is gathered and recorded. Check the rules that apply to you; this is not legal advice. Be clear at sign-up about what the series is, give an easy unsubscribe process in every message, and collect only the data you need.
Test, launch, measure
Test the whole sequence with your own addresses before launch, checking links, delays, conditions and exits, as covered in automation testing. After launch, watch email metrics, unsubscribes and replies. Falling engagement over the sequence is normal to some extent; a sudden drop at one message tells you which email to rework.
Keep it fresh
A drip campaign can run for years, and offers, links and advice go out of date. Schedule a periodic automation audit to check accuracy and consider whether the sequence is still needed. Some situations are better served by a personal reply, a point explored under automation limits.