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Gediminas · 4 min read · New features and updates · December 2, 2019

MailerCheck integration keeps your email list sparkling clean

Newsflash: Over time, we all attract invalid emails in our subscriber lists. These stagnant addresses are bad news. When you continue to send to them, your reputation skydives and deliverability suffers.

We’ve written extensively on the importance of verifying your emails to improve deliverability and protect your sender reputation. The bottom line is that you need to clean your email list periodically to ensure you’re sending to real people.

The best way to identify and remove invalid emails is to use email validation tools like MailerCheck that can improve your deliverability rate by up to 98%.

As a bonus, MailerCheck also categorizes your email addresses to find potential issues such as syntax errors or full inboxes. With these insights, you can optimize your lists and improve your metrics even further. 

OK, we’ve hit you over the head with the importance of email verification. You get it!

Now for the good news. With a few quick steps, our new integration with MailerCheck will keep your subscriber lists clean so you can sleep soundly knowing your sender reputation is intact and your emails are reaching the inboxes.   

MailerCheck is your no-hassle email verification tool 

Email verification doesn’t need to be complicated. You shouldn’t have to spend time navigating through up-sells and other add-ons that distract you from your main objective: 

To quickly and accurately verify your email list so you can move on with your life.

MailerCheck was designed to give you an easy-to-use solution that cleans your list without any extra hassles. It does 1 thing and it does it really well.

At MailerLite, we recommend that you verify your email lists so that you can maintain and improve your deliverability. When you have a clean list of subscribers, your email marketing performance strengthens.


To that end, we made it dead simple to verify your list. After you've integrated with MailerCheck, it's just 3 quick steps to clean your list. 

You simply upload your subscribers and MailerCheck tells you which email addresses are good, which may need to be organized into separate lists and which should be removed.

3 steps to cleaning your list

1. Upload your email list: Simply select your file.
2. MailerCheck cleans and analyzes: You do nothing while the verification system does its job.
3. Recommendations help you optimize your list: Your verification report helps you optimize future campaigns and download your cleaned lists for action.

Benefits of using MailerCheck
  • 24/7 Customer Support

  • Try it for free! (no need to input your credit card to open an account)

  • Guaranteed 98%+ delivery rate with your clean email list

  • Multiple options to download your new lists and special reports

How to set up the MailerCheck integration

The other huge benefit is that MailerCheck seamlessly integrates with MailerLite so you can verify your list in minutes once you are set up. 

Here are the step-by-step integration instructions for how to integrate and use MailerCheck.

MailerCheck integration instruction manual

See how easy it is to integrate and use MailerCheck.

Go to instructions

That’s all there is to it. You’re ready to go.

Keep your emails and your sender reputation sparkling clean. Try MailerCheck today with 100 free credits

Gediminas Andrijaitis

I’m Gediminas, CPO at MailerLite (not to be confused with C3PO from Star Wars). I work across all departments to ensure MailerLite is always working and helping you create the best email experience possible. The only thing I love more than building products is riding motorcycles—really, really fast.