Why should you care about the main types of email validation!?

For a long time, email deliverability has been a hot topic among marketers.

Inbox placement rate also has been a top challenge for many marketers as mailbox providers become more active with their spam blocking and filters.

It’s a rule of thumb to include email verification as part of your pre-campaign process to maintain your email deliverability.

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Because email deliverability influences two main factors:

  1. Sender reputation, which comprises the sender’s email/domain and the IP address from which it delivers.
  2. Quality of the list and the content

All in all, deliverability influences your sender reputation, and your sender reputation is related to your hard bounce rate.

It’s all tied up with a butterfly effect.

If you don’t take any steps to lower your bounce rate, it will have a negative influence on your sender’s reputation, ISPs will flag your domain as SPAM, and eventually, your domain might end up on blacklists.

Therefore, in today’s article, we explain to you the main types of email validation.

Keep reading to know more.

What is email validation?

Email validation’s process catches typos by mistakes or purposeful misdirects.

The email validation process makes a quick check that the email record exists with the domain, such as Hotmail, Yahoo, Gmail, and more.

In email marketing, the email validation process is vital to help you uproot the email addresses with typos in your email lists.

Benefits of email validation

If you thought email verification helps you to only reduce email bounces, think again. Here are the various benefits of email verification:

1. Ascertains accuracy of your data

You need high-quality data to have a successful email marketing campaign. A healthy email list full of valid email addresses will keep you on the right side of email marketing.

Email validation weeds out invalid or inactive addresses.

2. Reduces email bounces

Email verification results detect for you which address is undeliverable, which one is role-based, which address is accept-all, and so on.

When you will remove toxic email addresses, all your outgoing emails will be delivered, and you will have a clean list, with little to no hard bounces.

3. Saves money

Email validation tells you which all emails aren’t safe to send.

Email validation tells you which address to cull from your email list.

If you’re sending emails to fewer people, the costs associated with storing and sending out emails go down.

4. Shows accurate campaign insights

Email validation only leaves on your list the email addresses that are real and deliverable.

So if a certain email has a poor CTR, you will be sure what caused the fluctuation.

Email validation helps you be sure of every response is genuine since your email wasn’t sent to unengaged subscribers like role addresses for example.

5. Improves customer engagement

Email validation removes incorrect or non-existent email addresses from your subscriber list.

Email validation only leaves valid and active email addresses.

So your subscribers’ choices, interests, and priorities will give you accurate results of what your subscribers want and you’ll have a better engagement.

6. Increases campaign ROI

Email validation makes sure that the emails you’re sending out are well-targeted.

Better targeted emails mean a better opportunity to engage the recipient.

Your recipients find your emails more relevant.

Email validation keeps sure that you’re putting your resources to better, more efficient use.

Your costs go down while your revenues likely rise. This gives you better returns on every dollar you’re putting in and a better ROI.

Tell me the importance of email validation?

Ignoring email verification will lead your email marketing to catastrophic campaign issues.

Email verification protects you from fraud or spoofing, and thus improves the credibility of your website.

Email verification also protects you from legal disputes if you happen to be impersonated with your email address.

How does email validation work?

Most email service providers (ESPs) provide email validation services.

There are many efficient tools that also validate email addresses like Email Inspector.

First, you need to bulk upload your list of email addresses.

Email validation services run quick checks to determine whether the email addresses are valid, risky, or invalid.

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Valid: This means that the email address exists, and it is error-free.

This verification will be complete to the mailbox level.

Risky: This means the recipient exists but there are other factors that indicate that this address could still result in a bounce.

Invalid: If an email address is marked as invalid, it contains syntax errors, DNS errors and/or mailbox errors.

3 Different ways in which Email Validation can be done

Here are different ways to validate emails:

Real-time email validation

A real-time email validation detects when an email has a syntax error or is a non-business email address like Gmail or similar services.

The real-time email validation helps you to weed out bad email addresses during the sign-up process, this way, you only have legitimate email addresses on your email list.

This increases the quality of the emails in your email list.

Batch or bulk validation

Bulk validation helps you check newly added email addresses.

Bulk validation helps you to review all or a segment of your existing subscriber list.

Bulk validation is useful to identify active subscribers from invalid ones.

Bulk validation helps you to segment the invalid email addresses in a separate database.

Regex email validation

There are lots of Regular expressions available to validate email addresses using Javascript, but you cannot completely validate email using Javascript.

It is better to implement a simple Regex solution on the front-end side and then check email on the Server-side.

It’s best to use the simplest Regex.

The important types of email addresses

Inactive e-mail addresses

Inactive email addresses come from when someone changes jobs and no longer uses their older corporate email. Or for many other reasons, someone abandons their email addresses and doesn’t check them for a while.

It’s hard for email verification tools to detect these addresses if the server lists them as valid.

To identify these addresses, you’ll need to track your subscribers’ activity.

If a subscriber stopped engaging in 6 weeks, it’s best to remove these emails address from your list.

You could run a re-engaging email campaign before completely removing inactive email addresses.

When these inactive email addresses still don’t engage with your emails, just remove them already.

Spam traps

Many email verification services claim to be able to remove, or at least reduce the number of spam trap emails in your list.

Email verification services compare the address against a list of known spam traps or dangerous IPs.

Spam traps can show up as active and valid email addresses.

Spam can happen everywhere, so if your list was sourced via inbound, it’s very likely you will have spam traps in your email list.

In other cases, spam traps are born from inactive addresses and email service providers take them down to monitor the list hygiene. Sending emails to these addresses will hurt your domain reputation and email deliverability.

Role-based emails ([email protected], [email protected], [email protected], etc.)

Role-based emails are easy to identify with a company’s domain, which makes them a common target for spammers.

If you bought an email list, chances are it’s filled with these email addresses.

Sending your emails to role-based emails will only increase spam complaint rates and hurt your sender reputation.

Email verification tools will flag role-based emails as risky even if they are valid.

Catch-all addresses

Catch-all addresses because they typically don’t belong to a specific person.

Catch-all addresses examples are [email protected], [email protected], etc.

Catch-all addresses may be valid, but they count as fake addresses since they don’t belong to an individual.

Email verification service helps you to track domains that use catch-all addresses.

Disposable addresses

There is a good chance your subscribers would sign up with a disposable email address.

You need a good email verification tool to help you detect disposable addresses.

What type of email validation is right for my business?

There are different factors to determine if an email validation is best for your business.

  1. Email validation accuracy
  2. Pricing
  3. Data security
  4. Integrations

1. Email validation accuracy

Accuracy is the most important factor for an email validation service in regular email list clean-ups. There are many tools that are unable to verify Yahoo mail accounts and mark them as a catch-all. Email Inspector can verify all types of emails in your email database.

2. Pricing

Flexible pricing plan will allow you to use online tools based on your business needs. Email Inspector offers different pricing tiers (Pay-as-you-go, One-time, and monthly).

3. Data Security

It’s important to pay attention to email verification services that offer 100% free email verification services, which can be a scam in disguise.

Make sure to check the tool of your choosing.

Here is a list of reliable email verification services that you can safely use.

  1. EmailChecker – Best for Yahoo email verification
  2. Email Inspector – Affordable tool
  3. ZeroBounce – Premium email verification tool

4. Integrations

Make sure to choose efficient conduct bulk email checks and syncs the results to your email list. Some services have far better/more automated integrations than others. Pick the service that best suits your use case.


If you’re looking for a great email validation service, you can try Email Inspector for free today. Get your first 100 email addresses checked by a professional and discover how many fake accounts you have on your list!

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