sendrules
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Product
  • Overview
    How sendrules fits between your app and every provider.
  • SMTP Proxy
    One endpoint. Every provider you already trust.
  • Grid & Rules
    Six routing strategies. Coverage warnings. Failover.
  • Quality Gate
    Verify recipients before the send, not after the bounce.
  • ISP Routing
    Route by the recipient's live MX record — not domain strings.
  • Ramp-up
    Auto-advancing cap with bounce/complaint safety gates.
  • Limits & Queue
    Four-tier caps. Queue, don't drop. Midnight-UTC release.
  • Webhooks
    Signed and verifiable. Retried on schedule. Replayable.
  • Activity
    Seven filtered inboxes. Sparklines. Share links.
  • Inbound
    Receive + classify replies, bounces, and OOOs.
  • Autoresponder Parser
    Harvest contacts from OOO replies into lists — webhook or CSV.
  • REST API
    Every UI action has an endpoint. Scoped, rotatable keys.
  • Teams and roles
    Fine-grained RBAC across 30 resource types + audit trail.
Deliverability
  • Overview
    The suite most vendors sell separately.
  • DMARC Monitoring
    DMARC aggregate reports ingested with per-source breakdowns.
  • Auth Check
    SPF / DKIM / DMARC, graded A through F.
  • Postmaster Tools
    Google Postmaster data in per-domain views.
  • Blocklists
    Continuous blocklist + seed-list inbox placement.
  • Free Tools
    Email validation, spam check, DMARC generator — free on every plan.
How it Works
Industries
  • All industries
    Every segment sendrules fits — and why.
  • B2B SaaS
    Transactional at scale. Failover across ESPs.
  • E-commerce & Retail
    One rule per ISP — Gmail buyers routed differently to Yahoo.
  • Marketing Agencies
    Per-client rules on your clients' own provider accounts.
  • Sales Development
    Verify every address. Parse every autoresponder for referrals.
  • Recruitment & Staffing
    OOO replies are full of decision-maker names — capture them.
  • Real Estate & Lead Gen
    Inquiry email hygiene + reply-source enrichment.
  • Financial Services
    DMARC compliance, audit log, signed webhooks.
  • Healthcare & Life Sciences
    Reliable patient comms with a full audit trail.
  • EdTech & Education
    Enrollment-week bursts absorbed by queue-don't-drop.
  • Nonprofit & Fundraising
    Donor-appeal deliverability without a deliverability team.
  • Publishers & Media
    Newsletter deliverability + list hygiene at every send.
  • Government & Public Sector
    IP allow-list at AUTH, DMARC-first, tenant isolation.
PricingProduct Demo
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Terms and Conditions

Last updated: June 29, 2026

These terms and conditions ("Terms") govern your access to and use of the sendrules website, platform, applications and related services (together, the "Service"). Please read them carefully. By creating an account, or by otherwise accessing or using the Service, you agree to be bound by these Terms. If you do not agree, you must not use the Service.

1. About us and how to contact us

The Service is operated by sendrules (sendrules.com) ("sendrules", "we", "us" or "our"). You can contact us through our Contact page.

2. Definitions

  • "Account" means the account you register to access the Service.
  • "Content" means any data, documents, text, files and other material.
  • "Your Content" means Content you upload, submit, send or generate through the Service, including message bodies, subjects, headers, recipient addresses, attachments, and any lists (suppression, allow, quality-check-failed) you maintain in the Service.
  • "Message Content" means the bodies, subjects, headers, recipient addresses, attachments and metadata of messages you send or receive through the Service.
  • "Subscription" means a paid plan giving access to specified features of the Service.
  • "User", "you" or "your" means the person or organisation accessing the Service. Where you use the Service on behalf of an organisation, you confirm you are authorised to bind that organisation to these Terms.

3. Eligibility and your account

To use the Service you must be at least 18 years old and capable of forming a binding contract. You agree to provide accurate, current and complete information when registering and to keep it up to date.

You are responsible for safeguarding your login credentials and for all activity that occurs under your Account. You must notify us promptly through our Contact page if you suspect any unauthorised use. We may suspend access where we reasonably believe your Account security has been compromised.

4. The Service and licence to use

Subject to these Terms and your payment of any applicable fees, we grant you a non-exclusive, non-transferable, revocable licence to access and use the Service for your internal business purposes during the term of your Subscription.

The Service is a multi-tenant SMTP proxy and deliverability platform: you route outbound email through the providers you attach, verify recipients before sending, monitor deliverability signals (DMARC, blocklists, mailbox-provider reputation), and receive replies through managed inboxes and autoresponder parsers. We may add, change or remove features from time to time to improve the Service.

5. Acceptable use

You agree not to, and not to permit others to:

  • use the Service in breach of any applicable law or regulation;
  • upload or transmit any Content that is unlawful, infringing, defamatory, or that you do not have the right to use;
  • attempt to gain unauthorised access to, interfere with, or disrupt the Service or its underlying systems;
  • copy, scrape, resell, sublicense or commercially exploit the Service or another user's Message Content except as expressly permitted;
  • reverse engineer, decompile or attempt to derive the source code of the Service, except to the extent this restriction is prohibited by law;
  • introduce any malware, or use the Service to send spam or unsolicited communications;
  • use automated means to access the Service in a way that imposes an unreasonable load on our infrastructure; or
  • use the Service to build or train a competing product or service.

We may investigate suspected breaches and suspend or terminate access in accordance with Section 13.

6. Subscriptions, fees and payment

Certain features require a paid Subscription. Plan details and prices are set out on our Pricing page or in an order agreed with you. Unless stated otherwise:

  • fees are quoted exclusive of VAT and other applicable taxes, which you are responsible for paying;
  • Subscriptions renew automatically for successive periods unless cancelled before the renewal date;
  • payment is taken in advance through our third-party payment provider, and you authorise us to charge your chosen payment method;
  • we may change our prices on renewal by giving you reasonable prior notice; and
  • except where required by law or stated in our Refund policy, fees are non-refundable.

If a payment fails or is overdue, we may suspend or downgrade your access until amounts due are paid.

7. Free plans and trials

We may offer free plans, trials or beta features. These are provided "as is", may have reduced functionality, and may be modified or withdrawn at any time. Beta features are made available for evaluation and may be less reliable than generally available features.

8. Message Content, recipients and deliverability

You are solely responsible for the Message Content you send through the Service, for the lawful basis on which you send to each recipient, and for compliance with all applicable anti-spam, marketing, privacy and consumer-protection laws in the jurisdictions of your senders and recipients (including but not limited to UK GDPR, PECR, CAN-SPAM, CASL, and equivalent laws elsewhere). Our Acceptable Use Policy at /aup sets out what may and may not be sent through the Service; the stricter of that policy and any applicable upstream provider's own policy always applies.

We route your messages through the upstream email providers you attach; delivery to a recipient's mailbox provider depends on many factors outside our reasonable control (recipient reputation, upstream provider policies, mailbox-provider filtering, DNS propagation, etc.). We provide tooling to help you improve deliverability — including recipient verification, ISP-based routing, warm-up schedules, and DMARC/blocklist/postmaster monitoring — but we do not guarantee that any given message will be delivered, opened, or placed in an inbox rather than a spam folder.

9. AI features and generated outputs

The Service includes artificial intelligence ("AI") features that produce outputs ("AI Output") — including but not limited to spam-scoring explanations, deliverability guidance, and content-analysis summaries. You acknowledge that:

  • AI Output is generated automatically, may be inaccurate, incomplete or unsuitable, and must be reviewed by a qualified person before you rely on it;
  • AI Output does not constitute legal, compliance, deliverability or other professional advice;
  • we do not guarantee any particular result, including that a specific message or campaign will land in the inbox or achieve any given deliverability rate; and
  • you are solely responsible for the final decision to send any message.

10. Your Content and data

As between you and us, you retain all rights in Your Content. You grant us a worldwide, non-exclusive licence to host, store, process, transmit and display Your Content solely to the extent necessary to provide, secure and improve the Service and to comply with the law.

You are responsible for Your Content and confirm that you have all rights and permissions necessary to upload and use it through the Service, and that it does not infringe the rights of any third party. We process personal data in accordance with our Privacy Policy.

11. Our intellectual property

The Service, including its software, design, text, graphics, trademarks and all related intellectual property rights, is owned by us or our licensors and is protected by law. Except for the licence to use the Service granted in these Terms, nothing transfers any intellectual property rights to you. You must not use our name, logos or branding without our prior written consent.

12. Confidentiality

Each party may receive confidential information of the other. The receiving party will keep such information confidential, use it only to perform its obligations or exercise its rights under these Terms, and not disclose it except to those who need to know it and are bound by similar obligations. This does not apply to information that is or becomes public through no breach, is independently developed, or is required to be disclosed by law.

13. Suspension and termination

You may stop using the Service and cancel your Subscription at any time through your Account settings; cancellation takes effect at the end of the current billing period.

We may suspend or terminate your access (in whole or in part) immediately if you materially breach these Terms, fail to pay fees when due, or where we are required to do so by law or to protect the Service or other users. We may also discontinue the Service on reasonable notice.

On termination, your right to use the Service ceases. We may delete Your Content after a reasonable period in accordance with our data retention practices; please export anything you wish to keep before your Account closes. Provisions that by their nature should survive termination will do so.

14. Service availability and support

We aim to keep the Service available but do not guarantee uninterrupted or error-free operation. The Service may be unavailable during maintenance or for reasons beyond our control. We provide support as described on our website or in your plan.

15. Disclaimers

Except as expressly stated in these Terms, and to the fullest extent permitted by law, the Service and all AI Output are provided "as is" and "as available", and we exclude all warranties, conditions and representations (whether express or implied), including any implied terms as to satisfactory quality, fitness for a particular purpose, and non-infringement.

16. Limitation of liability

Nothing in these Terms excludes or limits our liability where it would be unlawful to do so, including liability for: (a) death or personal injury caused by our negligence; (b) fraud or fraudulent misrepresentation; or (c) any other liability that cannot be excluded or limited under the law of England and Wales.

Subject to the paragraph above, and to the extent permitted by law:

  • we will not be liable for any loss of profit, loss of business, loss of anticipated savings, loss of goodwill, loss of or damage to data, or any indirect or consequential loss, however arising; and
  • our total aggregate liability arising out of or in connection with the Service and these Terms (whether in contract, tort including negligence, breach of statutory duty, or otherwise) is limited to the total fees paid by you to us for the Service in the 12 months immediately before the event giving rise to the liability (or, where no fees have been paid, £100).

If you are a consumer, this section does not affect your statutory rights.

17. Indemnity

You agree to indemnify and hold us harmless from and against any losses, damages, liabilities, costs and expenses (including reasonable legal fees) arising out of or in connection with your breach of these Terms, your misuse of the Service, or Your Content.

18. Data protection

We process personal data in accordance with the UK General Data Protection Regulation, the Data Protection Act 2018 and our Privacy Policy. Where we process personal data on your behalf as a processor, the applicable data processing terms will apply.

19. Changes to the Service and these Terms

We may update these Terms from time to time, for example to reflect changes in the Service or the law. Where changes are material, we will give you reasonable notice (for example by email or an in-product notice). Your continued use of the Service after the changes take effect constitutes acceptance of the updated Terms. The "Last updated" date above shows when these Terms were last revised.

20. Third-party links and services

The Service may link to or integrate with third-party websites and services (including payment, AI and data providers). We are not responsible for third-party content or services, and your use of them may be subject to their own terms.

21. Force majeure

We will not be in breach of these Terms or liable for any delay or failure to perform caused by events beyond our reasonable control, including acts of God, failure of utilities or telecommunications, cyber-attacks, or the acts of third-party suppliers.

22. General

  • Entire agreement. These Terms, together with the policies referenced in them, form the entire agreement between you and us regarding the Service and supersede any prior agreements.
  • Assignment. You may not assign or transfer your rights or obligations without our prior written consent. We may assign or transfer ours to an affiliate or in connection with a reorganisation or sale of our business.
  • Severability. If any provision is found to be unenforceable, the remaining provisions will continue in full force.
  • Waiver. A failure to enforce any provision is not a waiver of it.
  • No partnership. Nothing in these Terms creates a partnership, agency or employment relationship between us.
  • Third-party rights. A person who is not a party to these Terms has no rights under the Contracts (Rights of Third Parties) Act 1999 to enforce any of its terms.
  • Notices. We may give notice to you by email or through the Service; you may give notice to us through our Contact page.

23. Governing law and jurisdiction

These Terms, their subject matter and their formation (and any non-contractual disputes or claims arising out of or in connection with them) are governed by and construed in accordance with the law of England and Wales.

You and we agree that the courts of England and Wales shall have exclusive jurisdiction to settle any dispute or claim arising out of or in connection with these Terms or the Service. If you are a consumer resident in another part of the United Kingdom, you may also bring proceedings in your local courts, and nothing in this section affects your statutory rights.

24. Contact

If you have any questions about these Terms, please contact us via our Contact page.

sendrules

One SMTP endpoint across 15 providers. Verify recipients before the send, route by real MX, and monitor DMARC in the same product.

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Product

  • SMTP Proxy
  • Grid & Rules
  • Quality Gate
  • ISP Routing
  • Ramp-up
  • Limits & Queue
  • Webhooks
  • Activity
  • Inbound
  • Autoresponder Parser
  • REST API
  • Teams and roles
  • Integrations

Deliverability

  • DMARC Monitoring
  • Auth Check
  • Postmaster Tools
  • Blocklists
  • Free Tools
  • Providers

Solutions

  • How it Works
  • Industries
  • Customers
  • Pricing
  • Contact

Company

  • About
  • Security
  • Terms
  • Privacy
  • DPA
  • Acceptable Use

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