Email Marketing Marketing

5 Email Verification Tools That Will Skyrocket Your Deliverability

Image courtesy of Pixabay

Adding contacts to your email list is one thing. Cleaning and maintaining it is a whole different ball game altogether. The hygiene of your list goes a long way towards determining the success of your email campaigns. Should it happen to be chock full of defunct and dormant contacts, not only will it lay ruin to your hard work but also deal a severe blow to your email deliverability. This is where email verification tools come into the picture. 

Businesses employ email verification tools to scan through their email lists and weed out invalid email addresses. This is important even if you follow all the email marketing trends and best practices for your campaigns. In the verification process, they take a definitive step forward towards reducing the bounce rates and improving the ROI of their email campaigns. If you are new to this, you might get overwhelmed by the sheer volume of options that the market has to offer. But, fret not! Today we will be walking you through a list of the choicest email verification tools out there. Now, this is a page worth bookmarking, isn’t it?



Lauded with multiple awards, ZeroBounce is a top-notch email verification tool that ensures all the effort you invest in your campaigns is rewarded generously. ZeroBounce integrates seamlessly with all major marketing platforms in the business including Mailchimp, Cloudflare, and Constant Connect. To figure out whether the addresses in your contact list are active or not, it makes use of an artificial intelligence scoring system. This enables it to promise a commendable accuracy rate of 98%. Besides identifying inactive contacts, ZeroBounce is also incredibly effective at eliminating abusive addresses and spam traps. Moreover, the website has a free email validator tool where you can enter an email address to instantly receive a status update. You can test upto 100 emails for free. After that, pricing begins from $16 per month. ZeroBounce examines your status with blocklisting companies; as a result, you have complete clarity regarding whom to contact to issue a delisting request. It is SOC 2 and GDPR compliant and uses military-grade data encryption to protect the user’s files during the email verification process. Registering with ZeroBounce is easy and swift. Upon completing the registration process, the user is awarded 100 free email validation credits- every validation costs one credit. In subsequent times, you can always purchase additional credits as per your requirement. The minimum purchase size is 2000 credits.



An automatic email verification software, mailfloss keeps your email list free from invalid addresses, thereby ensuring that your campaign’s ROI remains unaffected. You can integrate this tool with several email marketing service providers. With mailfloss, you can verify your email list in bulk. What makes mailfloss special is that, unlike many verification software solutions that outright eliminate misspelled addresses, mailfloss resolves common typos and syncs them with your email service provider automatically. Since it automates the process of email verification, it enables you to allocate greater time to other aspects of your business. One of the most redeeming features of mailfloss is that it carries out automatic daily cleanups.  Moreover, its decay protection feature detects decayed email addresses present in your list, preventing it from going stale in the process. It allows you to exercise full control over the cleaning process by giving you the option of setting up your own blacklist and whitelist options. Creating an account with mailfloss is a matter of 60 seconds (as they claim on their website). And since it offers a free trial, you can start using it the very instant you finish setting up. Paid plans start at $17 per month for verifying up to 10,000 email addresses. After using the tool for the first 30 days, if you don’t observe any significant improvements in your email deliverability, you can cancel your plan. Upon doing so, you will be refunded the entire sum, sans any terms and conditions.



Boasting upwards of 125,000 users, NeverBounce is hands down one of the most user-friendly email verification software solutions out there. Even though it is relatively new to the market, having been launched in 2014, it has quickly worked its way up through the ranks and at present has Dell, Harvard School, Uber, and Girl Scouts as some of its clientele. NeverBounce has a stellar reputation for meticulously checking for and eliminating hard bounces, spam traps, and addresses that mark emails as spam. It offers over 85 integrations with some of the popular platforms being Marketo, MailerLite, HubSpot, iContact, and Mailchimp. NeverBounce has three primary offerings:

  1. Bulk email list cleaning
  2. Real-time email verification
  3. Automated list cleaning

The platform promises to provide you with 99.9% deliverability. All you need to do is upload your existing list, let NeverBounce do its magic, and download your new, clean list. Additionally, every account on NeverBounce can avail of a free instant bounce analysis. With this feature, you can find out whether or not you have to clean your list before sending emails. NeverBounce has two kinds of payment models- pay-as-you-go pricing and subscription plans. You can choose one which suits you best. For the former, rates begin from $0.003 per email for up to 1 million emails. And for the latter, plans start at $16 per month for 2000 verifications. If you have more than a million emails to process, you can contact their sales team to facilitate custom enterprise pricing.


Many professional email marketers in the business use to test as well as resolve their email deliverability issues. Powered by big data and machine learning algorithms, is reliable to a fault when it comes to weeding out defunct and invalid email addresses. The who’s who of the tech world including Google, Oracle, IBM, and Shopify use for optimizing their email lists. A new user can test the app for free to get a first-hand feel and look of the tool. Email address verification occurs in the blink of an eye on this platform courtesy of the comprehensive email database it possesses. Pricing starts at $49 per month.



Promising upwards of 98% accuracy, Clearout, without any doubt, features among the top-tier email verification tools in the market. Entrusted by as many as 30,000 multi-sized businesses at present, Clearout’s bulk list email verification (which lets you upload up to 1 million addresses at a time) and instant email verification services help you lower hard bounces, expand your reach, and give a leg up to your deliverability rates. It also boasts a cutting-edge greylisting technique using which you can verify the real status of an email address without affecting your turnaround time. Additionally, its auto-suggest feature helps you steer clear of committing typos and spelling errors in the email addresses. Upon signing up, the user receives 100 free email verification credits which they can utilize to get a first-hand experience of this tool. Clearout offers both, the pay-as-you-go plan as well as a monthly subscription plan. The latter will cost you $24.50 per month, allowing you to save up to 30%. However, this will provide you monthly with 10,000 email verification credits so it is not really suitable for businesses who are just getting started with their email lists.

Wrapping It Up

Selecting the right email verification tool is crucial to sealing the success of your email marketing campaigns. We hope the multiple options shared above help you in arriving at an informed decision.

About the author


Kevin George

Kevin George is the head of marketing at Email Uplers, one of the fastest-growing email designand coding companies, and specializes in crafting professional email templates, PSD to HTML email conversion and free responsive HTML email templates in addition to providing email automation, campaign management, and data integration & migration services. He loves gadgets, bikes, jazz and eats and breathes email marketing. He enjoys sharing his insights and thoughts on email marketing best practices on his blog.