Email addresses checker (also called email verifier) is a tool used by email marketers to verify marketing emails that are headed out to existing addresses. This helps ensure that your campaigns reach their intended recipients and are not blocked or sent to a spam folder.

A verified mailing list is a powerful weapon in your arsenal to improve your email deliverability, engagement and data quality. This means you can send your content to more people with less bounces, ensuring that your messages are received and that you get the best return on your investment.

There are several ways to verify a valid email address. The most common way is to use a dedicated tool, which sends a ping to the mail server to confirm that it’s active and can receive messages. Other methods include a lookup of MX records to make sure the email address is real and has an active hosted domain name.

The Top Email Address Checkers for Verifying Your Email Lists

Another option is to manually ping the mail server to see if the address is still active. However, this method is time-consuming and can be prone to server downtime.

You can also verify an email address through a search engine or a social media platform. This is a good way to find out whether an address exists, as most people have a presence on the web and will be mentioned by their real-world email addresses in their profiles.

An email address checker can be installed to form fields on a website or application to qualify new email addresses before they enter the database. This prevents data entry errors, reduces bounce rates and improves the data quality across all touchpoints.