Terms & Conditions

SendLint ("the Service") is provided by MPK Digital Inc., a corporation based in Toronto, Ontario, Canada ("SendLint", "we", "us"). By creating an account, running the demo, or otherwise using the Service, you agree to these Terms & Conditions and to our Privacy Policy. If you do not agree, do not use the Service.

The Service is for business use. If you use it on behalf of an organization, you confirm that you are authorized to accept these terms for that organization, and "you" includes it. Organizations that need a Data Processing Agreement can use ours at sendlint.com/dpa.

SendLint is an email quality-assurance platform. It checks the HTML of your marketing emails against your approved copy deck, creative and per-client brand rules, across copy, links, images, accessibility, spam signals, metadata and rendering. Depending on your plan it also renders emails in a browser and in desktop Outlook, runs optional AI Agent passes, tracks findings across rounds, records QA sign-off in exportable certificates, shares reports with people you choose, and offers an API, outbound webhooks and a Slack integration.

The Service analyzes the content you give it. It does not send your emails to your recipients and is not an email service provider.

You must create an account and give accurate information. You are responsible for your credentials and for everything done under your account. Paid plans are licensed per seat. A Member seat is paid and belongs to one named person; it may not be shared. A Reviewer seat is free and is meant for people who review and comment. Admins of an organization manage its seats, members, clients and billing, and can remove members.

To protect accounts we notify you of sign-ins from new devices. We may suspend an account that shows credential sharing until enough seats are in place.

If you create API keys, keep them secret like a password. You are responsible for all activity performed with them. Revoke any key you believe is exposed.

Fees. Prices for each plan are shown on our pricing page. Fees are charged per paid Member seat, monthly or yearly, in U.S. dollars, in advance, through our payment processor Stripe. Applicable sales taxes (such as GST/HST) are calculated from your billing country and postal code and added to your invoice.

Automatic renewal. Subscriptions renew automatically at the end of each billing period, at the then-current price, until cancelled. We will give at least 30 days’ notice of a price increase, which takes effect from your next renewal.

Seats and plan changes. Seats added during a billing period are charged pro rata for the rest of that period. A change of plan takes effect immediately and is prorated: you are invoiced or credited for the difference when you make the change.

Promotional codes and trials. A promotional code may include a free trial or a discount, as described when you apply it. A trial turns into a paid subscription automatically when it ends unless you cancel before then. Codes have no cash value and may be withdrawn at any time before they are used.

Plan limits. Each plan includes the features listed on the pricing page. The Team plan includes up to 2 clients and 30 unique emails per calendar month; re-runs and later rounds of an email already counted do not count again. AI Agent features are subject to a monthly usage budget per paid seat, and all plans are subject to rate limits that protect the Service. If you reach a limit, the affected feature pauses until the next period or until you change plan.

Late payment. If a payment fails, Stripe retries it and we email your organization’s admins. If it is still unpaid three days after the period ends, paid features are suspended until the balance is paid. Your data is not deleted because of a late payment.

Admins can cancel at any time from Settings → Plan & Billing. Cancellation takes effect at the end of the current paid period, and you keep access until then. A cancellation can be undone once during that period. Deleting your organization (section 15) ends its subscription when the deletion runs. Fees already paid are non-refundable, except where the law requires a refund or where we decide, at our discretion, to grant one.

You keep all rights to the email HTML, copy decks, creatives, brand guides and other material you upload ("your content"). You grant us a limited license to host, copy, process and display your content only to provide the Service to you, including sending it to the service providers named in our Privacy Policy for that purpose. We do not use your content to train AI models.

You confirm that you have the rights needed to upload your content. If your content contains personal information, such as recipients’ names, email addresses or account values, you are responsible for having a lawful basis to share it with us. We recommend using test data in emails you submit for QA.

Link and image checks. To verify an email, our servers request the links, images, stylesheets and fonts it references, follow redirects and read the landing pages. Where a link goes through your email platform’s click tracking, that request may be recorded as a click or open in your platform’s reports. Unsubscribe and preference links are not requested unless you turn that on in a client’s brand rules, because requesting them can unsubscribe the test address.

Renders. Emails are rendered in a browser on our hosting provider and, where your plan includes it, in desktop Outlook on Windows machines we operate. Each render loads the email’s remote images and styles.

Destinations you choose. Webhooks, the Slack integration, notification emails and the fetch-from-URL feature send to or read from addresses you or your admins configure. You are responsible for those destinations and for having the right to use them.

You can create links that let people outside your organization view a report, a round brief or a client portal without an account. Anyone holding an active link can see what it shares. Links expire after 30 days by default; you can choose a longer period of up to a year, or no expiry, and revoke a link at any time. Each QA sign-off certificate has a public verification page that shows, to anyone with its certificate ID, the client name, the campaign, a masked approver name and the fingerprints of the approved emails. You decide what to share and with whom.

AI Agent features (for example the AI review, the proofread, words in pictures, the visual review, verified fixes and Ask the campaign) use a third-party AI model. Some run as part of every analysis unless an admin turns them off in a client’s AI Agent settings; others run when you ask. AI output can be wrong or incomplete. SendLint re-checks the HTML fixes it offers, but you remain responsible for reviewing anything the AI Agent produces before you rely on it or send it.

Features marked Beta are early versions. They may change, be limited or be withdrawn, and they are provided as-is without any commitment of availability or accuracy.

You agree not to:

• Use the Service for any unlawful purpose, or to prepare spam or messages sent without the consent the law requires
• Upload content that infringes the rights of others, or that contains malware
• Use the link checks, renders or fetch-from-URL feature to probe, overload or attack websites or systems you do not have permission to test
• Reverse engineer, decompile or disassemble the Service, or try to get around its limits, plan gates or security controls
• Interfere with or disrupt the Service or its infrastructure
• Access the Service by automated means other than the API, or share accounts, seats or API keys
• Resell the Service or use it to build a competing product

The Service, its software, checks, reports layout and brand are owned by MPK Digital Inc. and protected by law. These terms do not give you any rights in them beyond using the Service. If you send us feedback or suggestions, we may use them without obligation to you.

Payments are processed by Stripe and the Slack integration runs in your Slack workspace. Your use of those services is also governed by their own terms. We are not responsible for third-party websites your emails link to or for your email platform.

We work to keep the Service available but do not guarantee uninterrupted or error-free operation, and we do not offer a service-level agreement unless one is agreed in writing. We may change, add or remove features. If we remove a material paid feature, we will give reasonable notice.

We may suspend or end your access if you breach these terms, fail to pay, or use the Service in a way that puts it or others at risk. Where practical we will tell you first and give you a chance to fix the problem. You may stop using the Service and cancel at any time.

When a subscription ends, your organization’s data stays in place so that you can export it or come back. Admins can export the organization’s data from the Service and delete the organization themselves, or ask us to delete it, as described in our Privacy Policy. If we decide to delete the data of an organization that no longer has a subscription, we will give its admins at least 30 days’ notice by email first.

SendLint helps your QA process; it does not replace your judgment. The Service is provided "as is" and "as available". To the extent the law allows, we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose and non-infringement. We do not guarantee that the Service will find every error. You are responsible for the final review and approval of every email before it is sent.

To the extent the law allows, neither party is liable for indirect, incidental, special, consequential or punitive damages, or for lost profits, revenue or data, arising from these terms or the Service. Our total liability for all claims in any 12-month period is limited to the fees you paid us for the Service in that period. These limits do not apply to your payment obligations or to liability that cannot be limited by law.

You will defend and indemnify MPK Digital Inc. against third-party claims arising from your content, the emails you send, or your breach of these terms, and pay the resulting costs and damages a court awards or that you agree to in a settlement.

These terms are governed by the laws of the Province of Ontario and the federal laws of Canada that apply there. The courts located in Toronto, Ontario have exclusive jurisdiction over any dispute arising from them, unless the law of your place of residence requires otherwise.

We may update these terms. We will tell you about material changes by email or in the Service at least 30 days before they take effect, except where a change is required by law or concerns a new feature. If you continue to use the Service after a change takes effect, you accept the updated terms. If you do not agree, you may cancel before then.

These terms, the Privacy Policy and, where it applies, the DPA are the whole agreement between you and us about the Service. If any part is found unenforceable, the rest stays in effect. A failure to enforce a right is not a waiver. You may not transfer these terms without our consent; we may transfer them as part of a merger, acquisition or sale of the business.

Questions about these terms: hello@sendlint.com, or SendLint (MPK Digital Inc.), 300 Sheppard Ave W, Unit 101-53, Toronto, ON M2N 1N5, Canada.