The best conductor of customer conversations.
CopperMailer is customer-service software. It connects to your shared inbox, reads every incoming email, and drafts an accurate reply in your own voice, grounded in your help centre, your price list and your policies. You approve it, or let it send on its own. No message left to tarnish. It answers mail your customers chose to send you: there is no campaign builder, no mailing list and no way to start a conversation with a stranger.
What you are actually buying
CopperMailer is cloud-hosted software sold as one-time purchases. You buy a licence once and keep it, and you buy credits (one credit, one reply) whenever you want more. There is no subscription, no renewal date and no physical product; nothing is shipped. In merchant terms it is an ordinary software purchase: a licence to use a program we wrote and host, in merchant category 5734, computer software. Our company details are published in full, as is every price we charge.
A connected inbox
You link a Gmail, Microsoft 365 or IMAP mailbox, or forward to a CopperMailer address. We read incoming mail so we can answer it.
An AI reply, drafted
Each message gets a proposed answer built from your own knowledge sources, with the sources cited so your team can check the wiring.
Send, or approve first
Auto-send on topics you trust, review queue for everything else. You choose per topic, and you can pull the plug at any moment.
Paid for in credits
One credit writes one reply, at 10 credits per dollar. Buy the size you want, once. Run out and it simply stops; nothing tops itself up.
How it works
Four steps, about twenty minutes, no engineer required.
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Connect the wire
Authorise your mailbox over OAuth (Google Workspace, Microsoft 365) or add IMAP/SMTP credentials. We request the narrowest scopes that let us read and reply, and nothing more.
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Feed the Patina Engine
Point us at your help centre URL, upload PDFs, or paste your macros. The model answers from these sources only, and picks up your tone the way copper picks up patina: gradually, from real contact.
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Set the circuit
Decide which topics auto-send (order status, password resets, opening hours) and which always go to a human (refunds, complaints, anything legal). Add escalation rules and out-of-hours behaviour.
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Watch the meter
The Ohm Meter dashboard shows resolution rate, first-response time, deflection and where your support flow still meets resistance. Export to CSV any time.
This is the whole interface.
Three screens, and you have seen the software. A queue of drafts waiting for a human, a dashboard that counts what happened, and a rule editor that decides which topics never wait for anyone. Nothing else is hiding behind a demo call.
Features
Grounded replies, the review queue and routing come with every licence. The rest are one-time unlocks you buy only if you want them; see what they cost.
Grounded replies
Answers are generated strictly from the knowledge you supply, with citations. If the sources do not cover a question, CopperMailer says so and escalates instead of inventing an answer.
Patina Engine
Learns your house style from your last 90 days of sent mail: greeting, sign-off, formality, the lot. Nothing is used to train shared or third-party models.
Live Wire routing
Intent detection, language detection and sentiment on every inbound message, with rules to route, tag, snooze or escalate before a reply is ever drafted.
Human-in-the-loop
Review queue with one-click approve, edit or reject. Every edit teaches the model. Auto-send is off by default on every new topic.
Multilingual
Detects and replies in 31 languages, including Polish, German, French, Spanish and Portuguese, keeping your terminology consistent across all of them.
Circuit Builder
Visual rules: if intent is refund and order value is over a threshold, escalate to a named human. No code, no YAML, no surprises.
Ohm Meter analytics
Volume, deflection rate, median first response, approval rate, per-agent workload, and cost per resolved conversation. CSV export included.
Integrations
Gmail, Microsoft 365, IMAP/SMTP, Slack notifications, Zapier, HubSpot and Shopify order lookup, plus a REST API with webhooks whose complete reference is published in the open.
Copper-bottomed uptime
99.9% monthly uptime commitment, compensated in credits on the Alloy and Foundry licences. See the SLA for the exact terms.
What the software does, precisely
Marketing copy is easy to write and hard to check, so here are the constraints built into the product instead. Every one of them is visible in the API reference, which takes about two minutes to verify.
Every reply is bound to a message
The recipient of a reply is read from the inbound message being answered. It is never taken from a request body, a field or an upload. POST /v1/messages/{id}/reply is the only route by which mail leaves the system, and {id} has to be a message that arrived in a mailbox you connected.
There is no compose window
No new-message screen, no recipient field, no address book, no contact list, no import, no segment, no campaign, no schedule. None of them exist as objects in the data model, which is why none of them appear in the interface, the API or the export.
A draft is not a send
Generation and sending are two separate calls, and auto-send is off by default on every new topic. A draft you reject still costs its credit, because the work was done. Nothing leaves your mailbox without a human approval or a rule you wrote yourself.
Answers come from your sources
Every draft cites the knowledge source it drew on. Where your sources do not cover a question, the model says so and escalates instead of inventing an answer, and your customers’ email is never used to train shared or third-party models.
The one-line version. CopperMailer can only answer people who have already written to you. That is not a promise you have to take on trust, it is the shape of the software: there is nothing in it that can begin a conversation. Clause 26.2 of the Acceptable Use Policy says the same thing in contract language, and accounts that try to work around it are closed.
We make no promise about revenue, conversion or hiring outcomes either. AI-generated text can be wrong; that is exactly why approval mode is the default, and why you remain responsible for what leaves your mailbox.
Frequently asked questions
Can I try it for free?
Yes. Every new account gets 50 free credits and no card is requested. Most replies cost one credit, so that is roughly 40 to 50 real replies depending on how many carry attachments or run long; the exact cost of every action is on the pricing page. When they run out nothing happens automatically; you decide whether to buy more.
How am I charged?
Once per purchase, in US dollars. A licence is a single payment, credits are a single payment, and nothing renews. Full detail is in the Terms of Service and under Credits.
Is there anything to cancel?
No. There is no subscription, so there is nothing to cancel and nothing to forget about. If you stop buying credits, you stop paying us. Your account and licence stay put at no cost.
Who am I buying from?
JC Establishment LLC, a Wyoming limited liability company trading as CopperMailer, at 30 N Gould St, Ste N, Sheridan, WY 82801, United States. It is the seller, the invoicing entity and the merchant of record on every order. The full company details are on the company page.
What is your return policy?
Nothing physical is sold, so there is nothing to return: the return policy is the Return & Refund Policy. In short, 14 days to change your mind on anything you have not used, unused paid credits refundable for 24 months, statutory withdrawal rights for consumers in the EU and UK, and the money goes back to the method you paid with, with nothing deducted.
Who processes payments?
Stripe, Inc. and its affiliates. Card details are entered on Stripe-hosted pages and never reach CopperMailer servers. We store only the card brand, last four digits and expiry date returned to us by Stripe.
What happens to my email data?
It stays yours. We process it to run the service, never sell it, and never use your customers’ emails to train shared or third-party models. Details in the Privacy Policy and the Data Processing Addendum.
Do you support customers outside the EU?
Yes, worldwide, with the exception of jurisdictions covered by applicable sanctions and export-control law. See clause 16 of the Terms.
Everything else, one click away
The rest of the site is short pages rather than one endless scroll. Nothing is behind a login or a sales call.
Pricing & credits
Licences from $39.99 once, credits from $0.99, every feature unlock and pack priced in the open. How credits work, and what each action costs.
API & documentation
The complete REST reference: authentication, every endpoint, webhook events, error codes and service limits.
Security
Encryption, tenant isolation, data residency, our honest compliance posture, incident response and responsible disclosure.
Company & contact
Who we are, our company details, every address that reaches a person, support hours and how to complain.
Payments
What you can pay with, in what currency, who processes it, what shows on your statement, and exactly how money comes back.
Informacje po polsku
Sprzedawca, przedmiot sprzedaży, ceny i waluta, prawo odstąpienia w 14 dni z wzorem oświadczenia, reklamacje i pomoc konsumencka.
Ready to close the circuit?
Start with 50 free credits and no card. The Wire licence is USD 39.99 once, and credits start at USD 0.99, paid when you want them and never on a schedule.