🏷️ Marketing email campaigns are unlocked
with the Marketing add-on.
If you want to follow up with customers who didn’t open your first email, you can create a new campaign with a different message and send it to a segment of non-openers.
⚠️Important: This is different from the Boost feature, which resends the same email with a new subject line.
Why should I send a follow-up email to non-openers?
This approach allows you to:
Send a new message (not just a new subject line)
Test different content, offers, or calls to action
Re-engage customers who didn’t open your first campaign
💡 Tip: Use the boost campaign feature if you want to:
Resend the same email
Only update the subject line
How do I send a new email to customers who didn’t open a campaign?
Step 1: Create and send your initial campaign
Follow these steps to create and send a follow-up email campaign to your selected audience.
1. In your Marsello dashboard, go to Marketing > Email Campaigns and click Create campaign
3. Once your design is complete, click Save and continue to access the audience settings
4. Under Audience settings, select your audience, then send or schedule your campaign
5. Click Save & Continue to review to open the send or schedule your campaign page.
6. Review the sending form for accuracy and once confirmed select Schedule or Send
A Schedule or Send popup will appear. Follow the prompts to set the the time of your campaign to send.
💡 Tip: Wait at least 48 hours after sending your email before creating a follow-up segment. This gives customers enough time to open and engage with your campaign.
Step 2: Create a segment of non-openers for your second campaign
Customers who haven’t opened a campaign
These subscribers received your email but didn’t open it. Use this segment to re-engage inactive customers with stronger subject lines, exclusive offers, or tailored follow-ups that spark their interest.
Why this matters:
Run re-engagement campaigns.
Improve email deliverability with targeted testing.
Test subject lines and content strategies.
How to create this segment
1. Go to Customers > Custom Segments and click Create segment
2. Name your segment
3. Under Segment Conditions, select Campaign last sent → Is → [Choose campaign].
4. Click Add condition (keep AND selected).
5. Add Campaign email opened > Is not > [Choose same campaign].
![3. Under Segment Conditions, select: Campaign last sent → Is → [Choose your campaign] 4. Click Add condition (leave AND selected). 5. Add a second condition: Campaign email opened → Is not → [Select the same campaign] 💡 This setup targets customers who were sent the campaign but did not open it.](https://downloads.intercomcdn.com/i/o/tx746mgz/2275666611/99858998b1eb9f690299ada6e35c/bc27c31e-b421-448c-bb90-e118ef87bd73.png?expires=1776880800&signature=b5fc02123cd936341b3770fe43a592eb0222fbf102d35630fe2227cea0bf5c61&req=diIgE894m4deWPMW3nq%2BgZgji7EJ5Rc0dkGmpP8%2FUtkgf%2BvEkvNuaeF7oDqU%0A7nLk92WEywb4wgjTVRZclCCFyD8%3D%0A)
6. Click Save and create segment.
Step 3: Create a new campaign
1. In your Marsello dashboard, go to Marketing > Email Campaigns and click Create Campaign.
2. Design a new email with a different message.
💡 Tip: In this new campaign, you can:
Change the content or offer
Adjust the subject line
Try a different call-to-action
3. Once your design is complete, click Save and continue to access the audience settings
4. Under Audience settings, select the custom segment you've just created as your audience.
5. Click Save & Continue to review to open the send or schedule your campaign page.
6. Review the sending form for accuracy and once confirmed select Schedule or Send
A Schedule or Send pop-up will appear. Follow the prompts to set the time of your campaign to send.