How to Use an Email Validation API

Having the right email validation API is essential for any data provider who needs to ensure that their clients’ customers and prospects are getting their messages. This is important not just for improving deliverability rates, but also for maintaining the reputation of their clients.

There are a number of ways in which an email validation API can be integrated into your website and application. The most common is to use it to validate emails that are entered in a form, such as a signup form for a newsletter or a content piece. This can help to reduce the number of invalid or mistyped emails that get sent to people who have not signed up for your marketing communications.

Enhancing Data Integrity: The Power of Email Validation APIs

An email validation API can check for a variety of things, including whether an email address is valid and correctly formatted. It can also test against the mailbox providers that an email is hosted on to see if it is in their blacklist or spam folder. In addition, some APIs can check for grammar errors and even catch invalid or duplicate emails.

The most popular email verification services include Reacher, Verifalia and ZeroBounce. All of these services offer an API for real-time verification. Reacher is written in the highly performant language Rust and can verify an email in as little as 1.9 seconds. It is available both as a SaaS subscription and as open-source with JavaScript and Python SDKs. It can also be used to verify individual emails, though these will take a few seconds longer.