How to Check If Email Address is Valid? Complete Guide

Jared Young ~ Modified: April 17th, 2025 ~ Tips ~ 6 Minutes Reading

Most of the users have trouble identifying which email addresses are real or which one is fake. Therefore, in this article, we are going to provide you ways in which you can easily check if email address is valid or not.

Imagine this, your manager has given you a new task where you have to run an email campaign to grow your business. You got the list of hundreds of email addresses and started working on them.

However, suddenly dozens of email messages are bouncing back because some of the email IDs are invalid and fake. This flag your email account and if this continues your future emails might go straight to spam and all your hard work is going to waste.

To avoid this situation, it is crucial to verify your email addresses. By doing this, you can improve your email campaigns, build your brand images, and many more.

Problems Faced by Invalid Email Addresses

To understand more, in this section, we will explain the issues caused by the fake email addresses.

Invalid email addresses are those email IDs that do not exist. Because of this, the rate of message bounce back will increase and decrease your email reputation.
When multiple emails are bouncing back, the email provider flags your account as spam and your messages go to the spam folder.
If you don’t pay attention then over time your email list will be full of fake email addresses, misspelled email IDs. This way your email campaign quality will be low and you will not reach real customers.
High rate of bounce back also leads to suspension of your account by the email service provider.

So it is crucial to resolve the issue of fake email addresses as soon as possible. For this, we have found several methods that can help you check if email address is valid or not.

Valid Email List with Simple Techniques

For manual methods, there are simple as well as advanced options. We will explain both of them in the upcoming sections of the guide. So, follow these methods below.

Verify the Syntax of your emails: To identify your valid email IDs check the formatting of the address. A real email address should have
- Proper format like: example@domain.com
- Does not contain spaces or any special character except (_ , – , .)
- Domain name of your email should be valid, such as .com, .org, .net, etc.
- Your email must have @ in their format.
Search the domain name: if the email included the domain, then copy that and search it search engine. To check if the site is valid or not.
Send a Test email: Send a small email to the email address. If it bounces back, then that means its email ID is not valid. This method is risky, so don’t use it to send multiple emails.
Use Email Clients: email programs like Gmail, or Outlook can help you verify your email addresses. By typing the email IDs to the To field of compose emails. If it is invalid the application, underline the email in the red line.

These are the simple ways to check if email address is valid or not. There are more advanced methods that can accurately verify your email list.

Advance Ways to Validate Email Addresses

There are cases when the above methods fail to verify your email addresses. So, there are two advanced options that can help you. The first technique is to check the Mail Exchange Record. MX record is the part of DNS which is used to check whether your email is reaching a destination such as a domain name. So, with the help of this, you can verify your email IDs using the terminal or command prompt.

First, we will extract the domain from the email addresses. For example, user@example.com, the domain is example.com.
Then, run the command prompt, by searching through the Windows+r.
In this, we use nslookup command to check the MX records of a domain, i.e. nslookup -type=mx example.com.
By running this command, if you have found MX records then that means the email address is valid. If there are no MX records, then that means email IDs in invalid.

By using this you can check your emails, however there is no guarantee that it helps you to verify the email addresses. However, there are several professional tools that you can use to easily check your validity.

Verify Email Addresses using Professional Method

If you are from a non-technical background. Then, Corbett Email Address Validator will be a perfect choice. Users can either manually add their email addresses or upload their email list directly in the software. After that, the software checks your email IDs and gives you the results in less than a minute. You can also save the verified emails into a specified location.

Download Now Purchase Now

Therefore, for a bulk verification, use this tool as it provides not only check the email addresses validity. But, also provide saving options. For more information, follow the steps below.

Steps to Check If Email Address is Valid

First, install the software, then click on the Select File/Enter Mail-Ids button.
You can either browse your files from your hard drive or manually add them.
From the Settings option, you can select a location and any other advanced settings.
After that, click on the Validate and Export option.
Once the process is done, click on the Open Folder to view your resulting files.

Here are the working steps of the software which you can follow and validate bulk email addresses very easily. So, try this tool for a professional approach.

Final Words

If you don’t know whether your list contains valid email IDs, then follow the methods of this article. Here, you will find simple ways to check if email address is valid or not. Other than this, with the help of the tool you can verify your emails using the MX records and the professional software.

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