mailX Tools

Terms of Use

Last updated: May 18, 2026

Welcome to mailX, available through themailX.com.

mailX is a brand operated by Mailwarm Inc., a Delaware corporation located at:

Mailwarm Inc.

251 Little Falls Drive

Wilmington, New Castle County

Delaware 19808

United States

These Terms of Use govern your access to and use of mailX, including our website, free tools, email deliverability diagnostics, reports, API, MCP server, documentation, integrations, and related services.

By accessing or using mailX, you agree to these Terms. If you do not agree, please do not use mailX.

1. About mailX

mailX provides email deliverability diagnostics for humans and AI assistants.

Our tools help users check, analyze, and understand email deliverability signals, including DNS records, SPF, DKIM, DMARC, MX, BIMI, blacklist status, inbox placement signals, and related technical configuration issues.

mailX is part of the Mailwarm ecosystem:

  • Mailwarm helps senders build sender reputation.
  • mailX helps senders diagnose deliverability problems.
  • MailAdept helps senders fix and maintain deliverability with expert-led services.

Build reputation with Mailwarm, diagnose problems with mailX, fix and maintain with MailAdept.

2. Informational and diagnostic use only

mailX provides technical diagnostics, explanations, and suggested actions.

mailX does not guarantee that your emails will reach the inbox, avoid spam folders, improve sender reputation, increase revenue, or comply with all applicable laws.

Email deliverability depends on many factors, including domain reputation, IP reputation, email authentication, DNS configuration, sending behavior, content quality, recipient engagement, bounce rate, complaint rate, mailbox provider rules, and historical sending patterns.

You are responsible for reviewing, testing, and implementing any recommendation provided by mailX.

3. Eligibility

You may use mailX only if you are legally able to enter into these Terms and comply with all applicable laws.

You may not use mailX if you are prohibited from using the service under applicable laws, sanctions, export controls, or platform rules.

4. Account and access

Some mailX tools may be available without an account. Other features may require authentication, API access, MCP access, paid access, or additional verification.

You are responsible for keeping your credentials, tokens, and access methods secure.

You must not share access credentials with unauthorized users or use another person's credentials without permission.

We may suspend, limit, or terminate access if we believe your use is abusive, risky, unauthorized, illegal, or harmful.

5. API and MCP access

mailX may provide access through an API, MCP server, remote connector, app, integration, or other developer interface.

You are responsible for how you connect to and use these interfaces.

You agree not to:

  • overload or disrupt mailX infrastructure;
  • bypass rate limits or access restrictions;
  • use automated access to scrape, clone, or replicate mailX;
  • use API or MCP access for abusive email activity;
  • use mailX to test domains, systems, or infrastructure you are not authorized to analyze;
  • misrepresent mailX outputs as guaranteed deliverability results;
  • use mailX to create a competing product or service without our prior written permission.

We may introduce or modify authentication, rate limits, quotas, monitoring, access rules, or paid usage tiers at any time.

6. ChatGPT, Claude, MCP, and AI assistant usage

mailX may be used with ChatGPT, Claude, MCP-compatible clients, AI assistants, automation tools, or other third-party interfaces.

When you connect mailX to ChatGPT, Claude, or another AI assistant through MCP, API, an app, or a connector, that assistant or client may send requests to mailX on your behalf.

You are responsible for:

  • reviewing the requests you submit;
  • ensuring you have the right to analyze the domains or systems submitted;
  • verifying any output before taking action;
  • using mailX in a lawful and responsible way.

mailX is not affiliated with, sponsored by, or endorsed by OpenAI, Anthropic, or any other AI platform provider unless expressly stated in writing by that provider.

References to ChatGPT, OpenAI, Claude, Anthropic, MCP, or other third-party platforms are for compatibility, documentation, and integration purposes only.

7. Acceptable use

You agree not to use mailX to:

  • send, support, or optimize spam;
  • support phishing, fraud, malware, impersonation, or deceptive communications;
  • assist unauthorized access, abuse, or security attacks;
  • test domains, inboxes, IPs, or infrastructure you do not own or have permission to analyze;
  • violate privacy, security, intellectual property, or contractual rights;
  • generate or support harmful, illegal, or abusive email activity;
  • reverse engineer, scrape, copy, or reproduce mailX systems;
  • interfere with the normal operation of mailX;
  • attempt to bypass technical protections, limits, or controls;
  • submit passwords, API keys, private keys, OAuth tokens, MFA codes, payment card details, government identifiers, protected health information, or other unnecessary sensitive data;
  • use mailX in a way that violates applicable laws, platform rules, or third-party terms.

We may block, limit, suspend, or terminate your access if we believe you violated these Terms or created risk for mailX, Mailwarm Inc., our users, platform providers, or third parties.

8. Authorized domain testing

mailX is intended to help users analyze domains, DNS records, and email infrastructure they own, manage, operate, or are authorized to test.

You must not use mailX to analyze, monitor, or investigate domains, systems, infrastructure, or email setups without appropriate authorization.

You are responsible for ensuring that your use of mailX complies with your contracts, security policies, platform rules, and applicable laws.

9. Your inputs and responsibility

You may submit domains, email addresses, DNS records, configuration details, prompts, requests, API calls, MCP requests, or technical information to use mailX.

You confirm that:

  • you have the right to submit this information;
  • your use does not violate any law or third-party right;
  • you will not submit confidential information unless you are authorized to do so;
  • you will not submit personal data that is unnecessary for the requested diagnostic check;
  • you will not submit credentials, private keys, secrets, or authentication tokens unless a specific secured feature requires them and clearly explains why.

You remain responsible for your email infrastructure, sending practices, compliance obligations, and business decisions.

10. Outputs and recommendations

mailX may generate technical results, reports, explanations, scores, warnings, or suggested fixes.

These outputs are based on available information at the time of the check. They may be incomplete, outdated, inaccurate, or affected by third-party systems, DNS propagation, temporary network issues, mailbox provider changes, unavailable data sources, or incomplete user inputs.

You should verify important results before making technical, business, legal, compliance, or security decisions.

11. Read-only diagnostic tools

Most mailX tools are designed to be read-only diagnostic tools.

Read-only diagnostic tools may check public DNS records, public authentication records, blacklist data, domain configuration, or other deliverability-related signals.

Unless clearly stated otherwise, mailX diagnostic tools do not modify your DNS records, send emails, change your domain configuration, access your mailbox, or update your external systems.

If mailX introduces features that perform actions outside read-only diagnostics, we will describe those actions clearly.

12. Third-party data and services

mailX may rely on or link to third-party systems, including DNS infrastructure, blacklist data sources, mailbox provider signals, hosting providers, analytics providers, security tools, customer support tools, and other technical services.

We do not control third-party services and are not responsible for their accuracy, availability, security, terms, or privacy practices.

Your use of third-party services is governed by their own terms and privacy policies.

13. Intellectual property

mailX, themailX.com, Mailwarm, MailAdept, our software, tools, design, reports, text, logos, trademarks, documentation, and related materials are owned by Mailwarm Inc. or its licensors.

You may use mailX outputs for your own internal business, technical, or operational purposes.

You may not copy, resell, reproduce, modify, frame, distribute, or create a competing service based on mailX without our prior written permission.

14. Feedback

If you send us suggestions, ideas, comments, bug reports, or product feedback, you allow us to use them without restriction or compensation.

This helps us improve mailX, Mailwarm, MailAdept, and related products or services.

15. Service availability

We aim to keep mailX useful, secure, and reliable.

However, we do not guarantee that mailX, its tools, API, MCP server, reports, documentation, integrations, or website will always be available, accurate, uninterrupted, secure, or error-free.

We may modify, suspend, limit, or discontinue any feature at any time.

16. Security reports

If you believe you found a security issue, vulnerability, abuse risk, or privacy concern related to mailX, please contact us at:

contact@themailx.com

Please use the subject line: Security Report

Please include enough technical detail for us to investigate the issue.

17. No professional advice

mailX does not provide legal, regulatory, financial, tax, compliance, or professional advice.

Technical deliverability recommendations are provided for informational and operational purposes only.

You should consult qualified professionals when needed, especially for legal, privacy, compliance, security, or regulated communications.

18. Disclaimers

mailX is provided on an "as is" and "as available" basis.

To the maximum extent permitted by law, Mailwarm Inc. disclaims all warranties, express or implied, including warranties of accuracy, reliability, availability, merchantability, fitness for a particular purpose, and non-infringement.

We do not guarantee specific deliverability results, inbox placement, spam avoidance, sender reputation improvement, blacklist removal, email performance, revenue improvement, or commercial outcomes.

19. Limitation of liability

To the maximum extent permitted by law, Mailwarm Inc. will not be liable for indirect, incidental, special, consequential, punitive, or exemplary damages, including loss of profits, revenue, data, sender reputation, domain reputation, business opportunities, email performance, goodwill, or business interruption.

To the maximum extent permitted by law, our total liability for any claim related to mailX will not exceed 100 USD or the amount you paid to use the relevant mailX service during the three months before the claim, whichever is greater.

20. Indemnification

You agree to defend, indemnify, and hold harmless Mailwarm Inc., its directors, officers, employees, contractors, partners, affiliates, and licensors from any claims, damages, liabilities, costs, or expenses arising from:

  • your use of mailX;
  • your email practices;
  • your submitted data;
  • your violation of these Terms;
  • your violation of applicable laws;
  • your violation of third-party rights;
  • your misuse of API, MCP, automation, app, or connector access;
  • your unauthorized testing of domains, systems, or infrastructure.

21. Termination

We may suspend, restrict, or terminate your access to mailX at any time if we believe:

  • you violated these Terms;
  • your use creates legal, security, operational, or reputational risk;
  • your use may harm users, third parties, platform providers, or Mailwarm Inc.;
  • we are required to do so by law, regulation, court order, or platform rules.

You may stop using mailX at any time.

22. Changes to these Terms

We may update these Terms from time to time.

When we make changes, we will update the "Last updated" date.

Continued use of mailX after changes means you accept the updated Terms.

23. Governing law

These Terms are governed by the laws of the State of Delaware, United States, unless applicable mandatory law provides otherwise.

Any dispute related to these Terms or mailX will be handled in the competent courts of Delaware, unless applicable mandatory law requires another jurisdiction.

24. Contact

For questions about these Terms, contact us at: contact@themailx.com