Mailboxlayer is a product maintained by apilayer, a technology company based in Vienna, Austria.

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Office Locations


apilayer Data Products GmbH
Elisabethstrasse 15/5
1010 Vienna

What is it?

Mailboxlayer is a free, simple and powerful JSON API offering instant email address validation & verification via syntax checks, typo and spelling checks, SMTP checks, free and disposable provider filtering, and much more. Its system is REST-based, secured by 256-bit HTTPS encryption, and pursuing the goal of assisting developers and businesses in fighting fraudulent users and increasing success rates of email campaigns.

Who runs it?

The mailboxlayer API is a product built and maintained by apilayer, an Austrian technology company aiming to build a variety of reliable programming interfaces (APIs) and make them affordable for developers and startups.

APILAYER LTD is headquartered in the Austria, with offices in Vienna, and London, United Kingdom.

Fighting Fraud

At mailboxlayer we believe that every online business should be verifying email addresses before letting them into their database, that is why we decided to offer 100 monthly validation requests for free - no charges. After all, "[email protected]" may just not be your target demographic.

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