Terms of Service

Published: 20 July 2026

These Terms are a binding contract governing the use of MillionVerifier, including our website, application, API, email-verification tools and related services (the Services).

The service provider is GBD Software as a Service Private Limited Company, registered at 6065 Lakitelek, Szikra tanya 93., Hungary, company registration number 03-10-100682, Hungarian tax number 27325162-2-03 and EU VAT number HU27325162 (GBD, we, us or our). The other party is the business customer identified in the Account or billing details (Customer or you).

MillionVerifier is available only for business, professional, trade, public-sector or organisational use. Personal, family, household and other consumer use is not allowed. A person who creates or uses an Account for a Customer is an Authorized User and confirms that they have authority to act for that Customer. Authorized Users must follow these Terms when using the Services, and the Customer is responsible for them.

A new Customer accepts these Terms by selecting the checkbox during Account creation. We may update the Terms when reasonably needed for legal, security, privacy, fraud-prevention, technical, operational or business reasons. An update takes effect when it is published with a new publication date. Existing Customers will see an in-app notice at their next login, and Customers that have purchased Paid Credits will also receive an email notice. These notices are informational and do not delay the effective date.

Any access to or use of the Services on or after the publication date—including through the Website, application, API, one-by-one tool, an integration or an automated process using Account credentials—constitutes the Customer’s acceptance of the current Terms. Use by an Authorized User or through the Customer’s API key, integration or other credentials is treated as use by the Customer. A Customer that does not agree with an update must stop all use of the Services and disable automated access.

We may keep reasonable records of Account creation, checkbox acceptance, policy notices and use of the Services after publication, including the version, Account, user, date, time, IP address, user agent, API or integration activity and delivery status. An update will not retrospectively cancel, reduce, expire or reclassify valid unused Paid Credits, add a new charge to an existing prepaid entitlement, remove an accrued claim or reduce the protection already applying to Customer Personal Data.

1. Key terms

Account means the business account used by the Customer and its Authorized Users.
Credit means a service-use unit recorded in an Account. Unless stated otherwise, one email-address verification uses one Credit.
Paid Credits are Credits purchased for money.
Promotional Credits are any Credits we choose to provide without a separate charge. If offered, they may include registration, email-confirmation, trial and integration Credits; promotional, bonus and Auto Top-Up extras; percentage-based or “+X%” extras; MillionEvergreen Credits; support and goodwill Credits; and Credits for eligible unknown, catch-all or other risky results. Listing a type of Promotional Credit does not promise that it is currently available or will be available in the future. Promotional Credits have no purchase price and a cash refund value of zero.
Credit Ledger means our record of Credit purchases, additions, use, refunds, corrections, classifications and balances, including the order of those entries.
Inactivity means a continuous period in which no Paid Credits are purchased and no Credits are used. Receiving Promotional Credits does not interrupt Inactivity.
Recovery Record means the limited record kept after an inactive Account is removed. It contains a cryptographically hashed email identifier, the remaining Paid and Promotional Credit balances and the minimum Credit Ledger information needed to restore their classification and FIFO order.
Customer Content means data and material submitted or configured by or for the Customer, including email lists, verification files and results, integrations and support communications.
Personal Data means information relating to an identified or identifiable natural person.
Customer Personal Data means Personal Data contained in Customer Content or otherwise processed by us for the Customer.
Website means millionverifier.com and its subdomains.
Business Transfer means a sale, merger, reorganisation or other transfer of all or substantially all of MillionVerifier or the business unit that provides it. The company or other legal entity that acquires and continues the business is the Successor Provider.

2. Business eligibility, Accounts and lawful use

The Customer must be a legal entity, public body, organisation, sole trader, self-employed professional or other person acting only for business purposes. The Services are not available to minors or anyone who cannot enter into a binding business contract.

A company or organisation must provide its correct legal or trading name and, where applicable, its tax or VAT number. If the billing details contain neither a company or organisation name nor a tax or VAT number, the individual providing them confirms that they are a sole trader or self-employed and will use MillionVerifier only for business purposes. The absence of those details does not permit personal use.

The Customer must keep its Account, contact, billing, business and tax information accurate and current. We may request reasonable evidence of business status, self-employment, tax status, identity, authority or Account control. We may reject, restrict, suspend or close an Account if the Customer is ineligible, the information is materially false or misleading, or satisfactory evidence is not provided within a reasonable time. Except where law requires otherwise, we may rely on the information supplied and do not have to verify it independently.

The Customer must protect its passwords, recovery details and API keys, control access by Authorized Users and promptly remove access that is no longer needed. The Customer is responsible for activity through its Account and credentials, except to the extent directly caused by our breach of an applicable obligation.

A Customer may have one Account unless we approve additional Accounts. Separate Accounts must not be created to obtain repeated registration, trial or other Promotional Credits, avoid limits or bypass a suspension. We may investigate and temporarily suspend related Accounts while reviewing suspected abuse.

The Services may be used only lawfully. The Customer must not:

violate any law, third-party right or these Terms;
interfere with, damage, overload, probe or disrupt the Website, Services or another system;
introduce malware or harmful code;
copy, monitor or scrape the Website or its content using automated or manual means without our written permission;
provide false, fraudulent, misleading, abusive, defamatory, obscene or unlawful content; or
use the Services in a way that creates a material legal, security, fraud, operational or reputational risk for GBD or another person.

The Customer may verify or clean email addresses obtained directly or from a third party, including a data provider, list owner, broker or licensor. The individuals do not have to be the Customer’s subscribers, and these Terms do not require consent or opt-in unless applicable law requires it for the Customer’s intended use. The Customer must nevertheless acquire and use the data lawfully, have an appropriate lawful basis and authority, comply with applicable privacy, direct-marketing and electronic-communications rules, and observe relevant notices, objections, suppression requirements, licences and use restrictions. Buying, renting, licensing, finding publicly available data or merely possessing it does not by itself establish lawful use.

We may request reasonable evidence about the source and permitted use of a list, API activity, integration activity or a representative sample. Evidence may include supplier details, agreements, invoices, licence terms, warranties, privacy notices, controller instructions, lawful-basis records, objection or suppression records and audit material. The Customer must provide it within the reasonable period we specify. While reviewing the evidence, we may pause processing, restrict the Account or API, withhold Promotional Credits or suspend access. Using unlawfully acquired or disclosed data, or failing to provide satisfactory evidence, is a material breach. A materially false claim of business status, self-employment or authority is also a material breach.

If mandatory law treats an individual as a consumer despite the business-only restrictions above, any right that cannot lawfully be waived remains unaffected. This does not permit personal use or require us to continue providing an ineligible Account.

3. The Services

Subject to these Terms, we grant the Customer and its Authorized Users a limited, revocable, non-exclusive, non-transferable licence to use the Services for the Customer’s business purposes.

We may offer free or trial access and may, at our discretion, add Promotional Credits to eligible Accounts. Promotional programmes and free-Credit benefits are offered only as available. A current or previous offer does not create a right to receive the same benefit again or in the future. We may introduce, change, limit, suspend or discontinue any promotional benefit at any time without updating these Terms. This includes registration and trial Credits, extra Credits with purchases, Auto Top-Up bonuses, percentage-based or “+X%” extras, MillionEvergreen Credits, support and goodwill Credits, and risky-result Credits. The amount, eligibility and conditions applying to a particular grant are those shown in the Service, Help Centre or relevant offer when the Credits are granted. A change to future promotional availability does not reduce or reclassify Promotional Credits already added, except where an expiry was disclosed when they were granted or these Terms allow a correction or cancellation for error, breach, fraud or abuse.

We may change features, add reasonable limits, add paid services, change future prices, or suspend or discontinue all or part of the Services for legal, security, operational or business reasons. A price change does not alter a completed purchase, and we do not promise that the Services will always remain available on the same terms. Valid prepaid entitlements and mandatory law remain protected.

The Customer may upload files, use the API, connect its own website or application, or enable a supported third-party integration. By enabling an integration, the Customer authorises us to access and use the minimum information reasonably needed to operate and secure it. Third-party services remain subject to their own terms and availability.

4. Payments and Credits

Purchases, taxes and payment processing

Credit packages, prices, taxes and payment terms are shown on the Website or at checkout. Paid Credits are normally purchased upfront on a pay-as-you-go basis unless checkout clearly says otherwise.

Unless stated otherwise, prices exclude VAT, sales, use, withholding and similar taxes. The Customer must provide accurate billing-country, business and tax information. We may charge, collect or account for taxes as required by law. If materially false or incomplete information, or an incorrect exemption or reverse-charge claim, causes GBD to incur tax, interest, penalties or reasonable external costs, the Customer must reimburse the resulting amount. This does not apply to costs caused by our own error or legal non-compliance.

Payments are handled by the payment processors offered at checkout, which may include Stripe or PayPal. Anyone using a payment method confirms that they are authorised to use it. We do not ordinarily receive full payment-card details from those processors.

Credit rules

Credits are contractual service-use units. They are not cash, legal tender, electronic money, a deposit or a withdrawable stored-value balance, and they do not earn interest. Except for restoration of an inactive Account or a Business Transfer, Credits may not be sold, assigned or transferred between Accounts. A displayed Credit balance does not by itself represent money owed by GBD.

The quantity bought for payment is recorded as Paid Credits. Any free amount actually added with a purchase or otherwise is recorded as Promotional Credits. Promotion-specific terms may set eligibility, quantities, use restrictions, combination rules or a clearly disclosed expiry date. A promotional extra offered with one purchase does not create a right to receive it with any later purchase.

Paid Credits do not expire merely because time passes. Promotional Credits also do not expire merely because time passes unless an expiry date was clearly disclosed when they were granted. Account inactivity or administrative removal does not itself cause Credits to expire or be forfeited.

Credits are used globally on a first-in, first-out (FIFO) basis. The oldest Credit entry is used first, whether it is Paid or Promotional. If entries have the same timestamp, the order in the Credit Ledger applies. To identify the Paid and Promotional portions of the remaining balance, we may work backwards through the Credit Ledger from the most recent unconsumed entries.

A goodwill Credit, including one issued for an eligible unknown or catch-all result, is a new Promotional Credit added when it is issued. It does not restore the type or original position of the Credit previously used.

We may correct clear ledger errors, duplicate or failed-payment entries, fraud and abuse. Unless urgent security or fraud concerns prevent notice, we will give reasonable notice before a correction materially reduces a valid displayed balance.

Auto Top-Up

If the Customer enables Auto Top-Up, it authorises us and our payment processor to charge the selected payment method and buy the selected Paid Credit package when the balance falls below the chosen threshold. The package, price, taxes and threshold are shown when Auto Top-Up is enabled or changed. Any Promotional Credits offered with Auto Top-Up are a separate, discretionary benefit and are not guaranteed for future charges. We may change or discontinue those promotional extras for future charges without updating these Terms. The Customer may change or disable Auto Top-Up before a charge is triggered. We will give notice before applying a materially changed package price to a future automatic charge.

Refunds

Except for the Money Back Guarantee below and any mandatory legal right, Paid Credit purchases are final and non-refundable. Promotional Credits cannot be exchanged for money and do not increase any cash refund, statutory reimbursement, payment reversal or Money Back Guarantee payment.

If we refund a Credit purchase, we may remove unused Paid Credits from that purchase and any Promotional Credits granted with it.

A Customer in breach of these Terms is not eligible for a refund, repayment, redemption, reversal or other monetary value for any Credits, including under the Money Back Guarantee. No refund is due merely because an Account is restricted, suspended or closed. We may also cancel Promotional Credits and Credits obtained, retained or generated through the breach, fraud or abuse. These rules apply except where mandatory law requires otherwise.

5. Money Back Guarantee

Our 100% Money Back Guarantee applies only if the Customer and Account comply with these Terms and all of the following conditions are met:

The addresses were verified by uploading a file through https://app.millionverifier.com/email_verify. API and one-by-one verifications are excluded where we do not retain enough information to verify the claim.
The Customer sent an email to every qualifying address returned as OK within 7 days after verification.
More than 4% of those qualifying OK addresses hard bounced because the address did not exist. Soft bounces are excluded because they may result from sender reputation, configuration, content or other factors outside the verification result.
The percentage is calculated as qualifying hard bounces / qualifying OK addresses × 100. The qualifying period begins with the most recent successful Paid Credit purchase made before the relevant verifications.
The Customer used a professional email sender that provides a detailed breakdown of hard and soft bounces.
The Customer provides the reports, exports and reasonable access needed to review the claim. A password should not be shared where a secure export, delegated access or another reasonable method is available.
The Customer and Account remain compliant while the emails are verified, the claim is reviewed and any refund is paid. We may reject or cancel a claim if a breach is identified before payment and recover a refund obtained through materially false, incomplete or misleading information.

If the conditions are met, we will refund the most recent qualifying payment for Paid Credits. The refund is based only on money paid. Promotional Credits—including registration, bonus, Auto Top-Up, percentage-based, MillionEvergreen, support, goodwill and risky-result Credits—have a cash value of zero and do not increase it.

After a refund, we may remove unused Paid Credits connected with that payment and related Promotional Credits. We may also close the Account and delete its data, subject to applicable law and the preservation of any other valid Credits through a Recovery Record.

This commercial guarantee does not limit any mandatory legal right.

6. Customer data, content and intellectual property

Our Privacy Policy explains how we handle Personal Data for our own Account, billing, security and business purposes. When we process Customer Personal Data on the Customer’s behalf, the Data Processing Agreement and the Customer’s documented instructions apply.

The Customer is responsible for Customer Content and for having the rights, authority and lawful basis needed to submit and process it. Customer Content must not infringe another person’s rights, contain unlawful or abusive material, or include special-category or other highly sensitive Personal Data unless we have expressly agreed in writing and the processing is lawful.

Files uploaded for verification and their result files are normally deleted automatically after 30 days unless a different period is clearly disclosed for a particular Service. Limited information may be kept where needed for security, audit, backup, disputes, accounting, legal compliance or Credit recovery. The Customer must keep its own copies of important content and results. Permanently deleted data cannot normally be recovered. To the extent permitted by law, GBD is not responsible for loss or destruction of Customer Content.

GBD and its licensors own the Services, Website, software, designs, branding, documentation and related intellectual-property rights. The licence in these Terms does not transfer ownership. The Customer must not copy, sell, license, rent, modify, distribute, reverse engineer or create derivative works from the Services or our materials except where these Terms or mandatory law expressly allow it.

We may monitor or review Customer Content where reasonably needed to operate and protect the Services, investigate compliance or meet legal obligations, but we are not required to monitor everything submitted.

Feedback may be used by GBD without restriction or payment, provided that this does not give us ownership of Customer Content or permit us to disclose the Customer’s confidential information.

The Website may display advertising or link to third-party websites and services. A link is not an endorsement. We do not control their availability, content, security or privacy practices, and their own terms apply.

7. Suspension, closure and inactive Accounts

The Customer may stop using the Services and request Account closure at any time.

We may restrict, suspend or close an Account or any part of the Services if we reasonably believe that the Customer or an Authorized User has breached these Terms, exceeded a limit, is ineligible or used the Services for personal purposes. We may take the same action for material misrepresentation, infringement, unlawful conduct or a legal, security, fraud or operational risk.

We may also pause processing, remove content, disable API keys or integrations, and suspend related Accounts used to bypass an existing restriction. We will give notice where reasonably practicable, but may act immediately where needed for security, fraud, legal or operational reasons.

If an Account is restricted, suspended or closed for breach, the Customer is not entitled to monetary compensation for remaining Credits. We may cancel Promotional Credits and Credits obtained or generated through the breach. Access to unused Paid Credits may remain suspended or end with the Account, but they are not reclassified as Promotional Credits. Mandatory law continues to apply.

We retain information for as long as reasonably needed to meet legal, security, accounting, dispute and enforcement obligations. Subject to those needs, Customer Content and Account information are deleted when no longer required.

Inactive Accounts

We may treat an Account as inactive after 12 continuous months in which no Paid Credits were purchased and no Credits were used. Receiving Promotional Credits, logging in or viewing the Account without using or buying Credits does not interrupt Inactivity.

At least one month before removing an inactive Account, we will email the primary Account address with the planned removal date and instructions for keeping the Account active. Using at least one Credit or buying Paid Credits during the notice period prevents removal and restarts the inactivity period.

If the Account remains inactive, we may remove it for data-minimisation and storage-limitation purposes and delete information that is no longer needed, including credentials, API keys, integrations and Customer Content. Administrative removal does not expire or forfeit the remaining Credits. We keep a Recovery Record so those Credits can be restored.

To restore them, the same Customer must create a new Account and contact support through an authorised representative. We may ask for reasonable evidence of the Customer’s identity and continuity, the representative’s authority, control of relevant business domains or email addresses, prior Account administration, billing or transaction history and security information. Email access, knowledge of a payment or card details is not enough by itself. We do not have to decide internal employment, ownership, shareholder, director or partnership disputes and may wait for satisfactory evidence, consistent instructions or a binding order. Once entitlement is verified, we will restore the recoverable Credits with their Paid or Promotional classification and FIFO order preserved as far as the Recovery Record allows.

We may keep the Recovery Record for as long as reasonably needed to honour the Credits, prevent duplicate or fraudulent recovery and comply with law, subject to periodic review and the Privacy Policy.

8. Risky results, service availability and liability

Verification results may include unknown and catch-all. Any favourable Credit treatment for these results is a discretionary promotional goodwill programme, not a permanent feature of the Services. We do not promise that it will be available for any result, workflow, Account or period. We may introduce, change, limit, suspend or discontinue it for future verifications at any time without updating these Terms. We may also withhold it, cancel unused related Promotional Credits or withdraw future eligibility where the Customer is in breach, cannot provide satisfactory lawful-source evidence, uses scraping or fabricated data, misuses the Services or materially burdens or harms them.

Where the programme is currently available, Credits may first be deducted for an eligible bulk-file verification and Promotional Credits may then be added for eligible unknown and catch-all results. Each is a new goodwill Credit entered into the Credit Ledger at the time it is issued. For an eligible API or one-by-one verification, we may instead avoid deducting a Credit for that result. The treatment currently available for each workflow may be shown in the Service or Help Centre.

Risky-result Promotional Credits have a cash refund value of zero. The number or percentage of risky results does not by itself create a right to a cash refund or the Money Back Guarantee.

The Services are provided as is and as available. To the extent permitted by law, GBD and its affiliates, personnel, contractors, suppliers and licensors disclaim express, implied and statutory warranties, including merchantability, fitness for a particular purpose, title and security. We do not promise that the Services will meet every requirement, be uninterrupted or error-free, produce completely accurate results, correct every defect, be available at a particular time or place, or be free of harmful components.

The Customer uses the Services and relies on results, content and advice at its own discretion and risk. We are not responsible for delays, downtime, errors or inaccurate or inconsistent results except to the extent liability cannot lawfully be excluded. Nothing in these Terms excludes a liability, remedy or mandatory right that cannot lawfully be excluded or limited.

9. Indemnity

To the extent permitted by law, the Customer will indemnify GBD and its affiliates against third-party claims, reasonable costs, proceedings, losses, damages and liabilities arising directly from:

the Customer’s unlawful use of the Services or material breach of these Terms;
the Customer’s fault, negligence or breach of statutory duty; or
robots, spiders, crawlers or similar tools used by the Customer, or other Customer activity that places an unreasonable burden on infrastructure used by GBD or its affiliates.

The Customer is not required to indemnify GBD for loss caused by GBD’s own breach, negligence or unlawful conduct, or where the obligation cannot lawfully apply.

10. Business Transfer

By agreeing to these Terms, the Customer gives prior and express consent to GBD transferring its entire contractual position to a Successor Provider as part of a Business Transfer. This consent is given for the purposes of section 6:209 of Act V of 2013 on the Hungarian Civil Code and any equivalent applicable rule.

This consent covers these Terms, the Data Processing Agreement, the Account, purchases, API arrangements, Credits and their classification and FIFO order, Credit Ledger and Recovery Records, prepaid entitlements and other standard online arrangements governing MillionVerifier. The consent is not withdrawable. A separately signed agreement that expressly prohibits transfer or requires separate consent will prevail to the extent of a conflict.

The transfer takes effect for the Customer on the date and time stated in the Business Transfer notice. From that time, the Successor Provider replaces GBD as the service provider and contracting party, may exercise the transferred rights and must perform obligations falling due after the transfer. Payments then due must be made to the Successor Provider or its payment processor. GBD remains responsible for its breaches and unlawful acts before the transfer; the Successor Provider is responsible for its own performance after it.

A Business Transfer does not, merely because the provider changes:

cancel, expire, reduce or reclassify valid unused Credits;
materially alter their FIFO order;
reduce a prepaid entitlement or add a new charge to it;
remove an accrued claim, refund right, remedy or defence;
reduce an existing service commitment or Money Back Guarantee;
prevent recovery of Credits preserved in a Recovery Record; or
reduce the confidentiality, security or data-protection obligations applying to Customer Content and Customer Personal Data.

Promotional Credits continue to have a cash refund value of zero.

Where GBD acts as processor, the Customer instructs and authorises GBD to transfer Customer Personal Data and related content as reasonably needed to continue MillionVerifier, maintain Accounts, integrations, Credits and service history, perform the transferred contract, keep security, backup, audit, fraud-prevention and support records, and comply with law.

Customer Personal Data will not be made available to the Successor Provider for operational use until it has assumed the relevant processor obligations in writing. Appropriate data-protection and international-transfer safeguards will apply.

We will send a Business Transfer notice to the primary Account email address and display it in the Account or dashboard where reasonably available. The notice will identify the Successor Provider, its registration details and address, the transfer date, billing and support details, privacy contact and the policies applying after the transfer. We will give reasonable advance notice where practicable; otherwise, notice may be given on the transfer date. The Customer must keep its Account email address current. Subject to mandatory law, the notice is treated as given when it has been sent to that address and displayed in the Account or dashboard where reasonably available.

Except for changes validly made under these Terms, the contract continues after a Business Transfer without substantive change other than the provider’s identity and related administrative, payment, support and privacy details. A Successor Provider may rely on this clause for a later transfer of MillionVerifier, subject to the same requirements and protections.

11. General terms

These Terms and related non-contractual obligations are governed by Hungarian law and are written in English. If mandatory law treats an individual as a consumer despite the business-only restriction, the choice of law and forum does not remove any protection or jurisdiction right that cannot be waived.

These Terms are the entire agreement about use of the Website and Services and replace earlier understandings on the same subject, except for a separately signed agreement that expressly governs a particular matter. If part of a provision is invalid or unenforceable, it will be limited or removed only as far as necessary, and the rest remains in effect.

Before starting formal proceedings, the parties will use reasonable efforts to resolve a dispute. The complaining party must send a written notice describing the dispute. A notice to GBD must be emailed to [email protected] and sent by post to GBD Software as a Service Private Limited Company, Szikra tanya 93., Lakitelek, 6065, Hungary.

Unresolved disputes are subject to the exclusive jurisdiction of the Hungarian courts having territorial jurisdiction over GBD’s registered office. The parties may agree in writing after a dispute arises to use lawful mediation, arbitration or another alternative process.

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