Better Quality Subscribers
People who go through the double opt-in process are more rcs data likely to be really interested in what you offer. They took an extra step to confirm. This means they are more engaged. They are also more likely to open your emails and click on your links. A list full of engaged subscribers is very valuable. It can lead to more sales and better connections.
Moreover, double opt-in helps to make sure that the email addresses on your list are real and correct. Sometimes people might type in the wrong email address by mistake. Or, someone might try to sign up with a fake email. The confirmation email in double opt-in catches these errors. This keeps your list clean and reduces bounce rates.
Furthermore, engaged subscribers are less likely to mark your emails as spam. When people willingly confirm their subscription, they know what to expect. They are less likely to be surprised by your emails. This is good for your sender reputation. Email providers like Gmail pay attention to how people interact with your emails. High spam rates can hurt your ability to reach your audience.
Compliance with Regulations
In many places, there are rules about sending emails. These rules often require you to have clear consent before sending marketing emails. Double opt-in provides a very clear record of this consent. When someone clicks the confirmation link, it shows that they actively agreed to join your list. This can help you comply with laws like GDPR in Europe.
For example, GDPR requires "affirmative action" for consent. This means people need to clearly and actively agree to receive emails. Simply having a pre-checked box is not enough. Double opt-in meets this requirement because subscribers have to take a specific action (clicking the link) to confirm. This gives you strong proof of consent.
Additionally, double opt-in helps you stay on the good side of email service providers (ESPs) like MailerLite. ESPs want to make sure their users are following best practices. Sending emails to people who didn't actively agree can lead to problems. ESPs might even suspend accounts that have high bounce rates or spam complaints. Double opt-in helps you avoid these issues.
Reduced Bounce Rates
As mentioned earlier, double opt-in helps to prevent fake or misspelled email addresses from getting on your list. When someone enters a wrong email, they won't receive the confirmation email. Therefore, they won't be added to your active subscriber list. This leads to lower bounce rates.

Furthermore, a lower bounce rate is good for your email deliverability. Email providers use bounce rates as one factor to decide if your emails should go to the inbox or the spam folder. High bounce rates can signal that your list is not clean or that you are sending to outdated addresses. Keeping your bounce rate low helps your emails reach more of your intended audience.
Setting Up Double Opt-in in MailerLite
Now, let's learn how to set up double opt-in in MailerLite. It is a straightforward process. MailerLite provides clear steps to enable this feature. Here is a step-by-step guide to help you.
Access Your MailerLite Account
First, you need to log in to your MailerLite account. Go to the MailerLite website and enter your username and password. Once you are logged in, you will see your dashboard. This is where you can manage your email lists, campaigns, and automation.
Step 2: Navigate to Forms or Pop-ups
Next, you need to find the section where you manage your sign-up forms or pop-ups. In the MailerLite menu, look for "Forms" or "Pop-ups." Click on the one you want to set up double opt-in for. If you haven't created a form yet, you will need to create one first.