Terms and Conditions of Sale and Use (T&Cs)

1. Purpose

These Terms and Conditions of Sale and Use (hereinafter the “T&Cs”) define the terms under which the Deltadromeus service, a technical email address verification platform accessible via web interface, API, and associated tools, is operated.

Any use of the service implies full and unconditional acceptance of these T&Cs.

2. Publisher Information

Publisher

The website is published by AVX E-BOOST, the trade name of the company Alexis VIOUX EI, registered with the Montpellier Trade and Companies Register (RCS) under SIRET number 983 409 731 00012. Its registered office is located at 510 rue du Boulidou, 34980 Saint-Clément-de-Rivière, France, and its intra-community VAT number is FR07983409731.

Hosting Provider

The website is hosted by OVH, whose registered office is located at 2 rue Kellermann, 59100 Roubaix, France, phone: +33 9 72 10 07.

3. Service Description

Deltadromeus provides a technical service for verifying and evaluating email addresses.

The service relies on automated analysis mechanisms and interactions with third-party email infrastructures in order to produce an estimation of the validity or invalidity of an email address.

The service is designed for real-time use (API / user onboarding) as well as batch processing (files / bulk processing).

The results provided constitute a technical decision-making aid and do not in any case guarantee the existence, non-existence, deliverability, or ability to receive an email address.

4. Nature of Results and Technical Limitations

The Client acknowledges that results depend on external factors beyond the control of Deltadromeus, including:

• third-party email servers and their availability;
• anti-abuse and security policies;
• greylisting, throttling, or filtering mechanisms;
• rate limiting restrictions or IP/domain blocking;
• variable behavior and cooperation depending on email providers;
• network or temporary instabilities.

As a result, the outcomes must be interpreted as technical estimations and not factual statements.

No technology can provide an absolute guarantee of the validity or invalidity of an email address.

5. Confidence score

Some results include a confidence score ranging from 0 to 100.

This score represents a probabilistic estimate of the reliability of the result at a given time.

It is calculated based on technical and behavioral signals observed during the verification process.

The confidence score:

• is provided for strictly indicative purposes only;
• does not constitute validation of deliverability or marketing quality;
• does not constitute a contractual guarantee;
• must not be used as the sole decision-making criterion without additional validation.

The Client remains solely responsible for the decision-making rules applied based on this score.

6. Best-effort obligation

Deltadromeus operates under a best-effort obligation.

The Provider implements reasonable and industry-standard means to deliver a reliable, fast, and consistent service.

However, Deltadromeus does not guarantee in particular:

• systematic verification of all email addresses;
• absence of false positives or false negatives;
• response capability of all SMTP servers;
• successful completion of a result in all cases;
• universal compatibility with all email domains.

7. Processing times and behavior

Processing times may vary and are provided for informational purposes only.

Key technical behaviors:

• A verification typically takes around 1 second.
• It may extend up to 25–30 seconds and sometimes longer depending on the queried servers.
• Beyond a certain threshold, the process may be interrupted to avoid blocking or excessive waiting time.

In some cases, when a server does not respond within the expected timeframe, a result may be returned with a reduced confidence score in order to avoid data loss on the client side.

No SLA or maximum processing time is guaranteed.

8. Service availability

The service is provided without any service level agreement (SLA), unless otherwise agreed in a separate contract.

Interruptions may occur, including but not limited to:

• maintenance;
• updates;
• security;
• overload;
• third-party service outages;
• force majeure events.

9. Account creation and security

Access to certain features requires the creation of an account.

The Client is responsible for:

• the accuracy, truthfulness, and completeness of the information provided when creating the account;
• the confidentiality of their credentials;
• the security of their API access;
• any activity performed through their account.

The Client agrees not to create multiple or fraudulent accounts in order to bypass service limitations, billing rules, or promotional offers.

Deltadromeus reserves the right to:

• suspend or delete any account containing clearly false, incomplete, or misleading information;
• deny access to the service in case of suspected fraud, abuse, or circumvention of limitations;
• temporarily or permanently block any suspicious activity related to fraud attempts, identity theft, or unauthorized use.

Any compromise, fraudulent use, or attempted unauthorized use (including through stolen or invalid payment methods) may result in the immediate suspension of the account and related services, without prejudice to any legal proceedings.

10. Pricing

Prices are stated in euros and may be changed for future purchases.

Orders already paid remain valid under the conditions applicable at the time of purchase.

10 bis. Subscription (if applicable)

The service may, in certain cases, be offered on a monthly subscription basis.

Subscriptions may be cancelled by the Client at any time.

The Client may cancel their subscription via the payment provider (e.g. PayPal), through their user account on the Deltadromeus website, or by contacting support.

A minimum notice period of 48 hours may be required for processing cancellation requests.

Where applicable, subscriptions are billed monthly in advance.

No refund or credit will be issued for any subscription period that has started but not been fully used.

A billing period that has already been charged cannot be cancelled retroactively.

The service remains accessible until the end of the current billing period.

In the event of cancellation, no further renewal will be charged and the service will end at the end of the current billing period.

Both the Client and Deltadromeus may terminate or discontinue the subscription for any reason, under the conditions set out above.

11. Verification credits

The services are primarily provided in the form of prepaid credits.

Credits allow verifications to be performed via API, web interface, or file processing.

Unless otherwise stated, credits are valid for 12 months from the date of purchase.

Upon expiration, unused credits are permanently lost without refund or compensation.

11 bis. Trial offer / free credits

The service may, at Deltadromeus’ sole discretion, offer a trial consisting of the allocation of free credits.

When this offer is made available, it is strictly limited to a single use per user.

This limitation applies in particular to:

• a single natural person;
• a single legal entity;
• a single payment method;
• a single email address;
• a single technical fingerprint (including IP, browser, or other technical identifiers).

Deltadromeus reserves the right to refuse, limit, or cancel any allocation of free credits in case of suspected fraud, circumvention of limitations, or abusive use of the trial offer.

Free credits have no monetary value, are non-refundable, and may be modified or removed at any time without prior notice.

12. Credit consumption and billing logic

A verification is considered consumed as soon as processing is initiated.

Special cases:

In certain situations, a verification may not be deducted or may be neutralized, including:

• email already verified recently (within 30 days);
• clearly invalid email (incorrect format);
• request interrupted before actual processing;
• anti-duplication or anti-abuse rules;
• exceptional technical cases.

These rules constitute a discretionary commercial tolerance and may be modified at any time.

12 bis. Usage limits, rate limiting and processing queues

The Client acknowledges that access to the service, including via API and batch processing, may be subject to technical limitations (rate limiting), prioritization mechanisms, or queuing systems.

Deltadromeus reserves the right to implement, at any time and without prior notice, rate limits, in particular in order to:

• ensure overall system stability and performance;
• protect the infrastructure against abusive or excessive usage;
• prevent system overload;
• ensure fair resource allocation among users.

These limitations may vary depending on accounts, subscribed plans, or the Client’s service level.

Purchasing credits or accessing the service does not grant any right to unlimited, instantaneous, or priority throughput.

Deltadromeus may in particular:

• limit the number of requests per second, minute, or hour;
• delay request processing through queues;
• group or smooth batch processing;
• temporarily suspend unusually high or abnormal traffic;
• apply dynamic quotas based on system load.

The Client acknowledges that file or batch processing may be subject to variable delays due to queuing and system capacity.

The Client expressly acknowledges that processing throughput is a variable technical resource and does not constitute any contractual commitment regarding performance, speed, or simultaneity.

13. Payment

Payments are processed through secure third-party providers.

Access to the service is activated upon receipt and effective confirmation of payment.

The Client guarantees that they have the necessary rights to use the selected payment method.

14. No right of withdrawal on consumed credits

To the extent permitted by applicable law, consumed credits are non-refundable.

No refund may be requested for:

• incorrect or unexpected result;
• no result returned;
• insufficient confidence score;
• credit expiration;
• technical inability to perform the verification.

15. Service usage

The Client agrees to use the service in compliance with applicable laws.

The Client is solely responsible for:

• the data processed;
• its origin;
• its legal basis;
• its compliance with GDPR and anti-spam regulations.

The service must not be used for illegal or abusive purposes.

16. GDPR – roles and responsibilities

Within the scope of the service:

• the Client acts as the data controller;
• Deltadromeus acts as a technical data processor.

The Client guarantees that they have a valid legal basis for transmitting the processed data.

Deltadromeus processes data solely for the purpose of providing the service, in accordance with the Client’s instructions.

17. Data retention, reporting and anonymization

Data (including email addresses) may be temporarily stored to enable:

• reporting;
• verification history;
• technical support;
• service optimization.

Depending on the settings available in their account, the Client may choose:

• reduced retention period;
• immediate anonymization.

Data is neither sold nor used for commercial purposes.

18. Intellectual property

All elements of the service (software, APIs, interfaces, trademarks, content) remain the exclusive property of Deltadromeus or its rights holders.

No rights are transferred to the Client.

19. Suspension and termination

Deltadromeus may suspend or terminate access to the service in the event of:

• breach of the Terms and Conditions;
• fraudulent or abusive use;
• security breach;
• legal obligation;
• risk to the infrastructure.

Such suspension does not entitle the Client to any compensation.

20. Force majeure

Neither party shall be held liable for any failure resulting from an event beyond its reasonable control.

21. Limitation of liability

The Client acknowledges that the service provides technical estimates and not guarantees.

Deltadromeus shall not be held liable for:

• decisions made based on the results;
• data loss;
• loss of revenue or profits;
• loss of customers;
• indirect or immaterial damages.

In any case, the liability of Deltadromeus, on any grounds whatsoever, is strictly limited to the amount actually paid by the Client for the credits or services directly related to the event giving rise to the claim, during the twelve (12) months preceding it.

22. Modification of the Terms and Conditions

The Terms and Conditions may be modified at any time.

The applicable version is the one in force at the time of use of the service.

23. Severability

If any provision is deemed invalid, the remaining provisions shall remain in full force and effect.

24. Governing law and jurisdiction

These Terms and Conditions are governed by French law.

Any dispute shall fall under the jurisdiction of the courts within the jurisdiction of Montpellier, unless otherwise required by mandatory legal provisions.

If you have any questions regarding these Terms and Conditions, please contact us.