Why is email validation API important?


Last Updated on March 17, 2024 by Umer Malik

Validating user-provided data is common knowledge for everyone who deals with data. A simple check confirms that the information is not empty, that it is not longer than expected, and that it is in the correct format. You don’t require the final point for every data; just some forms of data like dates and timings and phone numbers must.

When validating, it is necessary to distinguish the terms validate and verify. Validating an email address means checking to determine whether an email address already exists and corresponds to a mailbox on a properly set up server.

Using an easy-to-understand example, let’s see why validation is required: In terms of size and format, the email address is suitable for ljkghiqslduq@email.com. However, there is no inbox with that address; therefore, it is improbable to pass the verification.

The importance of verifying an email address’s content rather than just its structure

Users who make an error when enrolling on your page and do not get a verification email will conclude that your website is damaged and will not finish the registration process.

The worst-case scenario is that your domain name will be marked as a spam domain and subject to penalties if you send emails to mailing lists with incorrect email addresses frequently.

If you want to boost the efficacy of your activities linked to email addresses and expand your business, you must validate an email address.

How to verify the authenticity of an email address

When validating an email address, just a few factors should be considered. The RCF 2822 specifies that any characters, including spaces, may be used in the email box name (the section that appears before the @ sign). However, the website name doesn’t require a dot (the portion that comes after the @ symbol).

However, verification requires a far more complex system. The email validation API function will fail if the domain name specified does not exist. To make sure the MX records contain the site’s email server addresses, it must also query the DNS entries. The MX fields specify which email server addresses to include. Use these addresses to verify that the SMTP servers reside and are functional. If you can use a free online service to handle all of this, it’s not worth your time to do it yourself.

What is an Application Programming Interface (API)?

An application programming interface allows applications to interact with one another without involving a human being (API). API is a collection of computer programs and operations. The slang for an executable or accessible piece of software code is API. API is a piece of code that makes it easier for two different software programs to communicate and share data.

You may use it to engage with other goods and services without understanding how they function.

Is there a need for an API?

  • The following are some benefits of using API:
  • An API abbreviation lets two different applications communicate and exchange data.
  • Data from any site or application may be easily included.
  • App components are accessible via APIs. The delivery method of services and information is currently more flexible.
  • If you create material, it might be published on its own without human intervention.
  • You may tailor the data and services you use the most for yourself or your company.
  • As software evolves throughout the course of its lifespan, APIs let developers keep up with those changes as they occur.


Email validation is the process of verifying if an email address is deliverable and can receive messages. An email validation API is a tool that allows developers to integrate email validation directly into their applications, websites, or services. The importance of email validation API cannot be overstated.

Firstly, email validation API helps in reducing bounce rates. A bounce rate is the percentage of emails that are returned as undeliverable. This can occur if the email address is invalid or doesn’t exist. By using an email validation API, businesses can identify invalid or inactive email addresses before sending out emails, thereby reducing the bounce rate and improving the email deliverability rate.

Secondly, email validation API also helps in preventing fraud and spammers. Many spammers use fake email addresses to send out unsolicited messages or spread malware. Email validation API can help identify such fraudulent email addresses and prevent them from sending out malicious emails.

Thirdly, email validation API can help improve customer data accuracy. Inaccurate email addresses can lead to wasted time, effort, and resources. With an email validation API, businesses can ensure their customer data is accurate and up-to-date.

Read more: Email validation- What is it, and how does it work?