An award-winning email verification API

Email validation that gives you more

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Explore a universe of email validation with our comprehensive API.

Check email addresses quickly and analyse 74 datapoints about every one. Use MORE to add value to your data and enhance your business performance.

Click here for a free trial


Who is it for?

People who want to integrate an email validation API into their business systems. To use it you’ll need to know how to call an API and use the results, so integration is usually done by developers.

What does it do?

MORE checks email addresses in real-time, returning results from seventy four data points, forming the unique Email Hippo Trust Score. It’s used in many ways, for example, filtering online sign-ups, cleaning CRM systems and adding value to data.

How do I use it?

Use it like any other API. To try it sign up for a free trial. Within seconds you can call the API and check any email address. The documentation gives you full insight into all the results and scoring.

Connect with the best toolkit for email API services

Focus on uber-quick Edition 1 if every millisecond counts at high volume and you don't need bells and whistles. Feature-rich Edition 2 gives you a fast and full lowdown on every single email address.

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Find disposable emails

Pour cold water on 'burner' email addresses that are often behind fake sign-ups and fraud. Find out if people are using real email addresses or temporary ones and learn whether to accept or block them. We monitor for new addresses 24/7 and detect more than anyone else.


Find 'Catch all' mail servers

Get a handle on the real value of your data. Learn which mail servers are set to accept every email. Emails sent to 'Catch alls' have relatively low open rates and are more likely than other servers to let you send to redundant email addresses.


The Trust Score

The Trust Score is a numerical result from 0 - 10 that's compiled from all the checks on an email address. It gives you a basis for automatic actions and decisions you can make for every email address that's checked.



Protect your sender reputation and steer clear of emails blocklisted for sending spam. Our service also warns of domains that collect sender details and charge gatekeeper fees to reach inboxes.


Which mail system?

Segment data better. Mail system detection gives detail about the mail system provider. You can learn if you get better results from freemail or premium mail systems, tailor communications and improve delivery rates.


Role checks

[email protected]? Identify email addresses that are for role based inboxes and decide how you deal with them. Role based email addresses usually have lower open rates than named addresses.


MX record checking

It's no use looking for emails with no MX records. MORE supplies every MX record and tells you if any are missing. No MX record = undeliverable.


Greylist detection

When mail servers give you lemons - make lemonade. Greylisting is a security feature for mail servers that ask us to try checking email addresses later, so they can tell if our requests are genuine. Squeeze every squirt of juice from your email data as we'll flag if an email is on a greylist server, letting you choose whether to double-check addresses.


Safe to send score

Expert help to decide when to send. The results of every email address checked are summarised with a numerical score show you when you can successfully (and safely) send to it.


What the @@*&.xyz?

Spammy and fraudulent emails often contain random strings of characters. Gibberish detection helps you stay safe.


Dark web link checks

Shine a light on domains that have connections to dark web users. You want real people at the end of email addresses - not dark web connections.


Mail server location

Where is everybody? Perfect for sifting sales leads and filtering fraudsters. Find out where in the world mail servers really are.


Comprehensive dashboard

User-defined layouts and flexible reporting tools. Enjoy at-a-glance summaries, download detail and get to grips with your data from every angle.


Clear results

Act on results from multiple datapoints. Create workflows and messaging to suit every situation, whether you're stopping typos on a CRM or filtering gibberish from sign-up forms.


Syntax errors spotted

When is an email not an email? When the syntax is bad. Our syntax check finds errors in realtime so you can create alert responses. It's a great tool for stopping typos at point of entry.


Say 'no' to spam traps

Trust the Spam Trap Assessment Score. Avoid mail boxes that squawk or trap you on a ransom blacklist. Every result is scored so you can determine outcomes.


Freemail detection

Identify whether addresses are business or private emails - a valuable tool for email marketing .

Product Plans

Edition 1

Essential elements

  • Various levels up to 2.5 million emails per month
  • Monthly, quarterly or annual subscription
  • Pay by credit card or PayPal

Edition 2

All inclusive

  • Various levels up to 2.5 million emails per month
  • Monthly, quarterly or annual subscription
  • Pay by credit card or PayPal


High volumes over 750,000 per month

  • Agreed contract duration and payment terms
  • Payment by invoice
  • Use Edition 1 or 2

Standard plan calculator


Please note Email Hippo has a minimum transaction fee of $10.00 for one off lists. GBP and Euro prices are indicative - the actual amount billed will be in US dollars.

Free trial sign up

Try our service for free. Register today for 15 free email validations. No credit card details needed to create your account.