What is CaptainVerify?

CaptainVerify is a data quality platform that verifies and cleans email addresses and mobile phone numbers. It helps businesses remove invalid, risky, and duplicate entries from their databases before launching marketing campaigns. The service checks emails for hard bounces, spamtraps, and misspellings, while mobile numbers are validated through HLR lookups that confirm operator status and portability.

Who it's for

• Marketing teams – who need to clean email lists and phone numbers to improve deliverability and campaign ROI.
• SaaS and e-commerce businesses – that rely on accurate contact data for transactional emails, newsletters, and SMS outreach.
• Agencies and data managers – who handle multiple client databases and require bulk verification with clear, actionable reports.

Key features

Email verification

CaptainVerify checks individual addresses or entire lists for validity, flagging invalid, unknown, free, risky, and disposable emails. It also corrects common spelling errors and removes spamtraps and honey pots to protect sender reputation.

HLR lookup for mobile numbers

The platform performs HLR (Home Location Register) lookups on mobile networks to confirm whether a number is active, reachable, and linked to a real operator — even after portability. This ensures SMS campaigns reach real recipients.

Bulk and API verification

You can import large email or phone lists for batch cleaning, or integrate the API to validate new contacts in real time. The system handles millions of records, with over 122 million emails and 11 million mobile numbers checked in the past year alone.

GDPR-compliant security

All data is encrypted and processed on servers located in France, certified ISO 27001 and SOC 2. CaptainVerify follows strict privacy standards to protect customer information.

What stands out

"Captain Verify is an excellent tool that we use to clean up our email address files. Very efficient and very easy to use."

Customers consistently highlight the platform's simplicity and effectiveness. The interface is designed for non-technical users, yet the underlying checks are robust enough for enterprise-grade data hygiene. The combination of email and phone verification in one service, along with clear French-language reporting, makes it a practical choice for European businesses.

Worth checking out if…

You run email or SMS campaigns and want to reduce bounces, avoid spamtraps, and improve deliverability. CaptainVerify is especially useful if you need a straightforward tool that handles both email and phone verification without complex setup. It's also a strong fit for companies that require GDPR-compliant data processing with European hosting.