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Terms of Service

Last updated: 28 September 2026

These terms describe, in plain language, how Envoi operates and the rules for using the Service. Questions? Email support@envoi.email. How we handle data, including subprocessors, AI processing and the website tracking snippet, is covered in our Privacy Policy.

1. Overview

These Terms of Service ("Terms") govern your access to and use of Envoi, an email and SMS marketing service at envoi.email operated by ZVN DEV ("Envoi", "we", "us"). The Service includes campaign creation, an email editor, contact and audience management, segments, automations, signup forms, a competitor inbox, deliverability tools, analytics, the Envoi API and the MCP server ("the Service"). By creating an account or using the Service, you agree to these Terms on behalf of yourself and any organization you represent.

Some features are in beta or planned and are not yet generally available. AI drafting in the email editor is in beta. The smart inbox and AI-suggested replies are planned and not available yet. Beta features may change, be limited, or be withdrawn, and are provided without any commitment that they will become generally available.

2. Accounts and eligibility

You must be at least 18, or the age of majority where you live, and able to form a binding contract. Envoi is a service for businesses. If you use it for an organization, you confirm that you have authority to accept these Terms for it.

Keep your account information accurate and your sign-in details secure. You are responsible for all activity under your account. We recommend turning on two-factor authentication. Tell us promptly at support@envoi.email if you think someone has accessed your account without permission.

3. Workspaces and roles

Your data lives in workspaces. You can belong to more than one, and each workspace has its own plan and billing.

Each member of a workspace is an owner, admin, marketer, developer or viewer, and each role has its own permissions. For example, viewers can only read, only owners and admins manage billing and workspace settings, and only owners can make someone an owner, transfer ownership or delete the workspace.

Workspace owners are responsible for the workspace, including every member they invite and everything done in it, and for removing access when someone leaves. Removing a member also revokes the API keys that member created.

4. Sending rules

You are responsible for every message you send through Envoi and for the people you send it to. You must:

  • Send marketing email and SMS only to people who have given you permission to contact them, and keep a record of that permission.
  • Comply with every law that applies to your messages and contacts, including CAN-SPAM, the GDPR, the UK GDPR and PECR, CASL, and for SMS the TCPA and similar state laws.
  • Honour unsubscribe and opt-out requests. Envoi adds an unsubscribe link and a preferences link to the marketing email it sends, adds a one-click unsubscribe header, and stops sending to addresses that unsubscribe, hard-bounce or report spam. Do not remove, hide or work around these.
  • Include a valid postal address in your marketing email where the law requires it, as CAN-SPAM does. Envoi does not add one for you.
  • Identify yourself accurately in your From name, From address and subject lines.

5. Prohibited uses

You must not use the Service to:

  • Send to purchased, rented, scraped or harvested lists, or to anyone who has not agreed to hear from you.
  • Send spam, phishing, or deceptive or misleading messages.
  • Distribute malware, or links to it.
  • Send content that is illegal, hateful, harassing, or that infringes someone else’s rights.
  • Impersonate another person or organization.
  • Collect information from children, or market to them, in breach of the law.
  • Probe or disrupt the Service, get around its limits or security, or access another workspace’s data.

6. SMS rules

If you send SMS through Envoi, you must also:

  • Get each recipient’s consent before you text them, in the form the TCPA and carrier rules require for the kind of message you send. SMS consent is separate from email consent and is given to a specific brand: Envoi records it per registered brand and phone number, and will not text a number that has not opted in to the brand of the number the text comes from. The one exception is a reply inside a conversation the person started by texting you, until they opt out.
  • Register your brand and campaign for US A2P 10DLC before you text US numbers, and send only the kinds of message your approved campaign covers. You can submit your registration to Telnyx from Envoi, but approval is decided by the carriers’ registration process, not by us. Envoi will not send SMS to a US number from a standard 10-digit US number until your brand is verified, your campaign is approved and that number is assigned to the campaign.
  • Include your business name and opt-out instructions, such as "Reply STOP to opt out", where carrier rules require them. Envoi does not add them to your messages.
  • Respect the quiet hours and time zones that apply to your recipients. By default, Envoi holds SMS until it is between 8am and 9pm in every contiguous US time zone, which is about 11am to 9pm Eastern.

7. SMS opt-outs

Envoi handles STOP, HELP and similar keywords automatically. A STOP reply opts that number out of texts from the brand of the number it was sent to, from every number of that brand. It does not change the person’s email subscription, or their consent to texts from another brand in your workspace. A START reply opts them back in to that brand, if they had opted in or out of it before.

8. Protecting deliverability

To protect recipients, carriers and Envoi’s sending reputation, we may review, pause or block a message, a campaign or your workspace’s sending if we reasonably believe it breaks these Terms or the law, or if your bounce or spam complaint rates are unusually high. Where we can, we will tell you first and give you a chance to fix the problem.

9. Competitor inbox

The competitor inbox gives each brand you follow its own watch address. Email that arrives at a watch address is analysed and shown only in your workspace.

If a workspace owner or admin turns on automatic signup, Envoi tries to subscribe the watch address on the brand’s website for you. It submits the site’s signup form with the watch address and an invented name, ticks any checkboxes the form requires, and follows the confirmation link the brand sends. Some sites cannot be signed up to automatically, so a signup may fail.

You decide which brands to follow and whether to use automatic signup. You are responsible for making sure those signups, and your use of what you receive, comply with the law and with each website’s terms. A checkbox the form requires may mean agreeing to that website’s terms or privacy policy. Use competitor email only for your own research: do not republish it, and do not use personal information it contains.

10. Your content and data

You keep ownership of your content and customer data, including your templates, messages, media and contacts. As between you and Envoi, your contacts’ data belongs to you.

You give us a worldwide, non-exclusive, royalty-free licence to host, copy, process, transmit and display your content and customer data, only as needed to provide, secure and support the Service for you. This licence ends when the data is deleted, apart from copies the law requires us to keep and copies that remain in backups for a limited time.

You are the controller of your customer data and we act as your processor, using the subprocessors listed in our Privacy Policy. You confirm that you have the rights and consents needed to give us that data and to let us process it.

Envoi, including its software, design and brand, belongs to ZVN DEV. These Terms give you the right to use the Service, not to own or copy it. If you send us feedback or ideas, we may use them without any obligation to you.

11. Tracking and analytics

Envoi tracks email opens and clicks by default so you can measure performance, and a workspace can turn either off in its settings. You are responsible for disclosing this tracking to your recipients where the law requires it.

If you install the Envoi website tracking snippet or embed Envoi signup forms on your site, they set a first-party cookie that lasts about one year. The snippet sends page views, the events your site chooses to send, and visitor identification to Envoi, and forms send what visitors submit, as described in our Privacy Policy. You are responsible for telling your site’s visitors about this tracking and for any cookie or consent notice the law requires on your site.

12. AI features

When you use an AI feature, the content needed for that request is processed by our AI provider, Anthropic, as described in our Privacy Policy. AI output can be wrong, incomplete or off-brand. Review everything it produces before you send it: you remain responsible for the messages you send.

AI requests count against your plan’s monthly AI allowance, and so do MCP tool calls.

13. Plans and fees

Envoi has a Free plan for up to 500 contacts and one paid plan, priced by your workspace’s active contacts and billed monthly or yearly. Every paid tier has the same features. Lists larger than 250,000 contacts, and Enterprise plans, are arranged with our team. Current prices are shown on our pricing page and in your workspace’s billing settings. There is no free trial of the paid plans.

Paid plans are billed in advance through Stripe, in US dollars, and renew automatically at the end of each billing period until you cancel. By subscribing, you authorise Stripe to charge your payment method for each renewal, and for text charges as described below. Envoi never receives your full card number.

A paid plan covers a number of active contacts. A contact is active when you can email or text it: it has not unsubscribed, bounced, complained or been suppressed on every channel. Between renewals your active contacts may grow past your plan, and the price does not change. If at your next renewal they are more than your plan covers, the plan moves up to the size that fits them, and that renewal is charged at the new price. When that is coming, we email the workspace’s billing contact in the week before the renewal with the new size, its price and the date, and again when the plan moves. Removing or suppressing contacts you no longer send to before the renewal keeps your plan as it is.

Contacts you add one at a time or import from a file stop at the next plan size up until you choose a bigger plan. Sign-up forms, store connections, migrations and the API keep adding contacts, and they count at your next renewal. On the Free plan, adding contacts one at a time or by import stops at the Free limit.

Each plan has monthly allowances for emails, automation sends, API calls and AI requests. These are hard limits and we do not charge overages for them. When you reach one, the affected sending or action stops until the allowance resets on the first of the month (UTC) or you upgrade.

Envoi sends texts only to phone numbers in the United States and Canada. Texts are billed per text at the rates on our pricing page, carrier fees included, with $5 of texts free each calendar month on every plan. Text charges for a month are billed after that month ends. On the Free plan, texting stops once the free $5 is used. On a paid plan, texting stops once the month’s text charges reach the monthly text limit set in your workspace’s billing settings.

Email sent from a workspace on the Free plan includes a small "Powered by Envoi" link below the unsubscribe links.

14. Payments, taxes and refunds

Prices do not include taxes. You are responsible for any sales, use, VAT or similar taxes that apply to your purchase, other than taxes on our income.

If a payment for your plan fails, your workspace’s sending, automations, contact imports, API access and AI features pause until you update your payment details. If a text charge fails, texting pauses until that invoice is paid. Email and everything else keep working.

Fees are non-refundable, except where the law requires otherwise. We may change our prices with reasonable advance notice, and a change takes effect at your next renewal.

15. Plan changes and cancellation

Owners and admins can change or cancel a workspace’s plan from its billing settings, and Envoi shows the new plan’s price before you confirm. On a paid plan, a change takes effect straight away and the price difference is prorated onto your next invoice. Switching between monthly and yearly billing starts a new billing period on the day of the switch and is charged straight away.

Cancelling stops future renewals. Your paid plan stays active until the end of the period you have paid for. The workspace then moves to the Free plan and keeps its data.

Deleting a workspace or your account cancels its paid subscription immediately, without a refund for the unused part of the period.

16. API and MCP

Envoi’s Events API and MCP server let your own systems and AI assistants work with your workspace. Owners, admins and developers can create API keys. A key can do only what its scopes allow, never more than its creator’s current role, and it stops working if its creator leaves the workspace.

Keep your API keys secret. Anyone with a key can act for your workspace within its scopes, and you are responsible for everything done with your keys, including by AI assistants you connect. We show the full key only once, when you create it. Revoke a key straight away if you think it has leaked.

Each API key is rate limited, by default to 1,000 requests per minute, and API calls count against your plan’s monthly API allowance. Do not try to get around these limits. MCP tools that send a campaign ask for an explicit confirmation of the recipient count first.

We may change or retire API endpoints and MCP tools as the Service evolves.

17. Third-party integrations

You can connect services such as Shopify, WooCommerce, BigCommerce, Stripe, HubSpot, Segment, Zapier, Make and custom webhooks. When you connect one, you authorise Envoi to exchange data with it for you. These services are provided by third parties under their own terms and privacy policies, and we are not responsible for them. An integration marked beta, or not yet available, may be limited or may not work.

Stock photos in the editor come from Pexels and are subject to the Pexels licence.

18. Service availability

We work to keep the Service available and reliable, but we do not promise it will be uninterrupted or error-free. We may change, add or remove features, and we carry out maintenance that can cause temporary interruptions. Delivery depends on recipients, mailbox providers and carriers outside our control, so we do not guarantee that any message will be delivered, reach the inbox or arrive at a particular time.

19. Suspension and termination

You can stop using the Service at any time. You can delete your account in Settings, which also deletes the workspaces you own.

We may suspend or end your access, in whole or in part, if you break these Terms, if your use creates legal, security or deliverability risk for Envoi, recipients or carriers, if you do not pay, or if the law requires it. Where it is reasonable, we will give you notice and a chance to fix the problem first. We may act immediately for serious or repeated breaches.

If we stop offering the Service, we will give you reasonable notice and a chance to export your data.

20. Your data after termination

When your account or a workspace is deleted, its data is permanently deleted from our database, as described in our Privacy Policy. Export anything you want to keep first: you can export contacts, segments, form submissions and your activity log from the app.

While access is only suspended, your data stays in place. Sections that by their nature should survive the end of these Terms, such as ownership, fees owed, disclaimers, limitation of liability and indemnity, continue to apply.

21. Disclaimers

To the fullest extent the law allows, the Service is provided "as is" and "as available", without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, title and non-infringement. We do not warrant that the Service will meet your needs, that AI output will be accurate, or that your messages comply with the law. Some jurisdictions do not allow these exclusions, so some of them may not apply to you.

22. Limitation of liability

To the fullest extent the law allows, Envoi is not liable for indirect, incidental, special, consequential or punitive damages, or for lost profits, revenue, goodwill or data, even if we were told they were possible. Our total liability for any claim relating to the Service or these Terms is limited to the amount you paid us for the Service in the twelve months before the claim arose. Nothing in these Terms limits liability that the law does not allow to be limited.

23. Indemnity

You will defend and indemnify Envoi against claims, losses and costs, including reasonable legal fees, that arise from your content or customer data, the messages you send, your use of integrations or the competitor inbox, or your use of the Service in breach of these Terms or the law.

24. Texts from Envoi

This section covers the texts ZVN DEV (Envoi) sends you itself, not texts from businesses that use Envoi. If you opt in at envoi.email/sms-opt-in, you agree to receive recurring automated text messages from ZVN DEV (Envoi) at the number you gave, including account notifications and marketing. Consent is not a condition of any purchase.

Message frequency varies. Message and data rates may apply. Reply STOP to cancel at any time, or HELP for help. You can also email support@envoi.email.

Carriers are not liable for delayed or undelivered messages.

25. Changes to these Terms

We may update these Terms as the Service changes. When we make a material change, we will update the "Last updated" date above and, where appropriate, notify you by email or in the app before it takes effect. If you keep using the Service after a change takes effect, you accept the updated Terms. If you do not agree, stop using the Service and delete your account.

26. General

These Terms and our Privacy Policy are the whole agreement between you and Envoi about the Service. If any part is found unenforceable, the rest stays in effect. If we do not enforce a right, we have not waived it. You may not transfer these Terms without our consent. We may transfer them as part of a merger, acquisition or sale of the Envoi business.

27. Contact

Questions about these terms can be sent to support@envoi.email. Privacy requests go to privacy@envoi.email.