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EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics

Validate email addresses for deliverability, syntax and disposable detection.
RankFabrik Verify API is a free Email API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
Email address verification, without ever sending a message.
Details from rankfabrik.com.

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Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics
A cloud-based SMTP provider that allows you to send emails without having to maintain email servers
A service that provides solutions relating to marketing and/or transactional email and/or SMS
Email API and SMTP for sending transactional and bulk emails, with email testing sandbox for safe development
Email for AI agents: send email, receive replies as threads, with per-key send limits and approvals
The RankFabrik Verify API is provided by RankFabrik (rankfabrik.com). Email address verification, without ever sending a message.
Yes. The RankFabrik Verify API is listed in the Email category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The RankFabrik Verify API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the RankFabrik Verify API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The RankFabrik Verify API is served over HTTPS, so it's safe to use in production.