When you’re working with a large list of check and verify email addresses, removing invalid and inactive ones is essential to maximizing the effectiveness of your email campaigns. This is because messages sent to inactive addresses will bounce, which damages your reputation with email service providers and increases the likelihood that your future messages are marked as spam.

There are several ways to check and verify email addresses, including surfacing online mentions (and looking up whois information), using telnet to elicit a response from a mail server, or running an email verification tool in bulk on a CSV file of address lists. However, these methods require manual effort and are not as effective as leveraging an email validation software with built-in features.

Check and Verify Email Addresses: Improve Your Email List

Invalid email addresses are the number one cause of high bounce rates and poor deliverability. The best way to avoid this is by using a tool that can verify email addresses in real-time as users sign up on your website, or on a large scale when importing lists into your database from other sources.

This will help you remove the majority of errors such as typos, misspellings, and syntax mistakes that can result in invalid email addresses. In addition, if an email is on a disposable or catch-all address service (like Mailinator, Postinator, or SparkPost), these tools will flag them as risky and remove them from your list, ensuring that you’re only sending emails to engaged recipients. This can also reduce your email campaign costs and improve your overall success rate.