How to Set up a Double Opt-in Email

Mashkoor Alam
ByMashkoor Alam

Updated:

3 mins read

Updated:

3 mins read

Summarize with AI

Building a high-quality email list is more challenging than ever. Fake signups, spam bots, and disinterested users can quickly degrade the quality of your list, harming engagement rates and damaging your sender reputation.

To make sure your subscribers are genuinely interested and ready to engage, double opt-ins are essential.

In this guide, we’ll walk you through how to set up double opt-in emails using Mailmodo.

What is double opt-in in email marketing?

Double opt-in is a two-step signup process that ensures only genuinely interested users are added to your email list.

  • First, a user submits your signup form.

  • Next, they receive a confirmation email and must click a link or button to confirm their subscription.

Only after this second step are they added to your active list.

How to set up double opt-in emails

Here’s how you can set up a double opt-in email in Mailmodo:

Step 1: Create a Mailmodo form or connect an existing form

To create a form in Mailmodo:

  1. Go to Page & Forms → Pop-up forms → Create new form and select a pre-built one or start from scratch.

Screenshot 2025-09-03 095024.png

  1. Add required fields like email, name, etc.

double opt 2.PNG

  1. Set up triggers to decide what action will make your form appear, such as page visit, scroll, exit intent, or mouse movement.

double opt 3.PNG

  1. Review everything and click Publish to make your form live.

double opt 4.PNG

  1. Generate the embed code and add it to the code of your website.

If you already have a form live, you can still connect it to Mailmodo by going to Pages and forms → Pop-up forms → Connect form

Screenshot 2025-09-03 093340.png

Step 2: Set up a trigger email

Now, let’s set up a trigger campaign that gets triggered when the form is submitted. Make sure to create a double opt-in email that you want to send to your recipients. Ensure that it has a confirmation link that recipients can click on to confirm their subscription.

Now let’s move ahead:

  1. From the Mailmodo dashboard, go to Journey → Create journey → Start from scratch

  2. Under triggers, choose Web forms and then click on Configure trigger.

Screenshot 2025-09-03 093903.png

  1. Fill in the details of the form you want to connect.

Screenshot 2025-09-03 093940.png

  1. In the journey builder, add the send campaign block and connect it with the trigger block.

Screenshot 2025-09-03 094146.png

  1. Set up the send campaign block by selecting the template and filling in the rest of the details.

Screenshot 2025-09-03 094259.png

  1. Click on Next and Publish the journey once you’ve reviewed the details.

Screenshot 2025-09-03 094629.png

Your double opt-in email is set up and will be sent to everybody who submits the form that you’ve connected. If you have an AMP form in the double opt-in email, you’ll be able to see the responses of the recipients in campaign analytics.

Final thoughts

Without a clear process, even the most carefully planned campaigns can suffer from low engagement and a weakened sender reputation. Mailmodo’s workflow simplifies the entire double opt-in process, guiding you from form creation to confirmation tracking and list segmentation.

A thoughtfully designed double opt-in journey ensures every subscriber is verified, genuinely interested, and ready to engage with your emails, helping you build a high-quality list that delivers measurable results.

Sign up for Mailmodo today and start turning your subscribers into engaged, loyal readers.

What should you do next?

You made it till the end! Here's what you can do next to grow your business:

2_1_27027d2b7d
Get smarter with email resources

Free guides, ebooks, and other resources to master email marketing.

1_2_69505430ad
Do interactive email marketing with Mailmodo

Send forms, carts, calendars, games and more within your emails to boost ROI.

3_1_3e1f82b05a
Consult an email expert

30-min free email consultation with an expert to fix your email marketing.

Table of contents

chevron-down
What is double opt-in in email marketing?
How to set up double opt-in emails
Final thoughts

Meet the only AI
email automation
platform

Mailmodo Logo