IPQS
Getting Started
About the Email Verification Database

IPQS provides a standalone email verification database that grants direct access to a complete copy of our email verification and fraud prevention intelligence for on-premise deployment. This solution is ideal for enterprise businesses, marketing platforms, cybersecurity teams, and financial services that require high-speed email verification with minimal latency while maintaining full control over their data.

Our on-premise email validation database integrates with IPQS email intelligence feeds, incorporating all key data points available through our email address verification API. This includes real-time insights into disposable emails, temporary accounts, spam traps, bot-generated addresses, and high-risk users. This data is continuously updated, ensuring your system has access to the most accurate and up-to-date email risk scoring.

By using our self-hosted email verification solution, your organization can:

  • Avoid reliance on third-party services while maintaining full data privacy and security compliance.
  • Reduce email bounce rates and improve email deliverability by detecting invalid, fake, and blacklisted email addresses before sending messages.
  • Detect fraudulent sign-ups and prevent fake account creation by identifying high-risk email domains and patterns associated with fraud.
  • Support high-volume email verification workflows with low-latency processing, making it ideal for large-scale email marketing, lead generation, and customer verification.

The IPQS on-premise email verification database can be downloaded daily or delivered via SFTP for direct integration into your infrastructure. This solution is designed to scale easily, making it perfect for businesses that need fast, accurate, and private email verification at any volume.

If you are interested in obtaining a copy of our on-premise email validation database or want to learn more about how this solution can improve your fraud detection and email hygiene, contact us

Sample Database File

You can download a sample database file to test with our reader classes. The file is compressed, so you will need to decompress it before using it.

The sample file has a SHA256 of 5001b11674e60e7f0861cc9e4bbcdd2a84c9afc2ee944c5b9b37ac1ac1507701 .

File Validation

After downloading a full database file from IPQS using your API key, validate the SHA256 checksum of the archive against the digest header provided by the download. All flat file databases will have a digest header with a SHA256 checksum to validate the file's integrity. After validating the file, extract the archive to access the IPQS database file.

Database Readers

We provide a variety of database readers to help you get started quickly. If you don't see a reader for your language, contact us to request one.

Database Format

For additional information about the structure and format of the database see Database Format.

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