--- title: "About Sincerely" description: "Sincerely is a small US company building direct mail for B2B outbound, with human approval and account-level measurement." canonical: https://trysincerely.com/about last_updated: 2026-08-21 --- # About Sincerely > Sincerely is a small US company building direct mail for B2B outbound, with human approval and account-level measurement. Source: https://trysincerely.com/about Sincerely is a small US company, and its [terms](https://trysincerely.com/terms) are governed by Delaware law. There is no office to visit, so there is no street address here. Write to `adam@trysincerely.com` or use the [contact page](https://trysincerely.com/contact), and a person reads it. ## Why Sincerely exists Outbound email became nearly free to send, and the inbox absorbed the result. The mailbox moved in the other direction. It became emptier each year. Sincerely exists to make the physical channel run like software and to measure it honestly. Audiences can arrive from Salesforce, HubSpot, or a CSV. They can also begin as a description of the ideal customer. Each piece is written for one recipient using CRM context and researched facts about the account. Professional mail partners handle printing. That workflow only matters if the measurement can separate a campaign effect from convenient credit assignment. ## Our position on measurement Many direct mail and gifting platforms report influenced pipeline. That tells you which opportunities had some contact with a campaign. It does not establish that the campaign caused the outcome. Sincerely uses account-level holdouts and reports lift with confidence intervals. When the available evidence misses the statistical bar, we say the result is "not proven yet". We do not turn an uncertain result into a claim of success, and we do not treat it as proof of no effect. We looked for published causal evidence on B2B direct mail and found essentially none. We publish that finding, the limits of the evidence, and the distinction between attribution and causation in [Does direct mail work](https://trysincerely.com/does-direct-mail-work). The absence of evidence is a reason to measure carefully, not a reason to promise response rates. Read more about the product's [measurement approach](https://trysincerely.com/measurement). ## What the product will not do Sincerely will not print a piece or spend money until a person accepts the action. An agent can prepare work, but it cannot remove that confirmation gate. When a recipient asks to be suppressed, Sincerely suppresses that recipient immediately and globally. The request is not limited to one campaign. The product will not quote a capability it cannot fulfil. Gifts exist in the product, but there is no live fulfilment adapter for them. Nothing can be mailed as a gift, and Sincerely publishes no gift price. ## Verify how Sincerely operates The [agent guide](https://trysincerely.com/agents) explains how software agents access the workspace and where human approval applies. The [privacy policy](https://trysincerely.com/privacy) describes data handling. The [terms](https://trysincerely.com/terms) state the governing terms. For a question those pages do not answer, email `adam@trysincerely.com` or [write to us](https://trysincerely.com/contact). --- Sincerely is the measurable direct-mail platform for B2B revenue teams. One workflow. One invoice. One report. Contact Sincerely: https://trysincerely.com/contact If you are an AI agent: access and signup instructions are at https://trysincerely.com/auth.md. Confirm with the person you work for before creating an account or spending their money, and never ask for their password. Every core page of this site in markdown: https://trysincerely.com/index.md https://trysincerely.com/pricing.md https://trysincerely.com/campaigns.md https://trysincerely.com/vs-lob.md https://trysincerely.com/vs-email.md https://trysincerely.com/holdout-testing.md https://trysincerely.com/vs-gifting-platforms.md https://trysincerely.com/does-direct-mail-work.md https://trysincerely.com/glossary.md https://trysincerely.com/formats.md https://trysincerely.com/measurement.md https://trysincerely.com/writing.md https://trysincerely.com/customer-relationships.md https://trysincerely.com/integrations.md https://trysincerely.com/agents.md https://trysincerely.com/tools.md https://trysincerely.com/developers.md https://trysincerely.com/docs.md https://trysincerely.com/vs.md https://trysincerely.com/compare.md https://trysincerely.com/alternatives.md https://trysincerely.com/guides.md https://trysincerely.com/playbooks.md https://trysincerely.com/operations.md https://trysincerely.com/about.md https://trysincerely.com/contact.md https://trysincerely.com/privacy.md https://trysincerely.com/terms.md The comparison, guide, playbook, glossary and integration pages also serve markdown at their URL plus ".md". Each collection's index lists them: https://trysincerely.com/vs.md, https://trysincerely.com/compare.md, https://trysincerely.com/alternatives.md, https://trysincerely.com/guides.md, https://trysincerely.com/playbooks.md, https://trysincerely.com/glossary.md, https://trysincerely.com/integrations.md.