--- title: "Sincerely" description: "Sincerely is B2B direct mail and gifting software for revenue teams. It researches each account, writes every piece for its recipient, automates campaigns from Salesforce or HubSpot, and measures lift against a holdout." canonical: https://trysincerely.com/ last_updated: 2026-09-18 --- > If you are an AI agent: read https://trysincerely.com/agents/policy.md before any write call. > Start at https://trysincerely.com/llms.txt to choose one page. Access 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. # Sincerely > Sincerely is B2B direct mail and gifting software for revenue teams. It researches each account, writes every piece for its recipient, automates campaigns from Salesforce or HubSpot, and measures lift against a holdout. Source: https://trysincerely.com/ ## Personalized direct mail, measured like a paid channel. The direct mail platform for high-value B2B deals. Every piece is written for its recipient from CRM context and sourced account facts, so what arrives reads like you spent an afternoon writing it. Postcards, letters, handwritten mail, and gifts sequence in one campaign. A holdout measures the lift. Enter your work email to [start free](https://trysincerely.com/sign-up), or [book a demo](https://trysincerely.com/contact). Free to set up. A one-time $199 pilot mails 100 postcards. No print vendor needed. Add contacts: Salesforce · HubSpot · CSV Send: postcards · letters · handwritten · gifts Send across: United States · Canada · Europe planned ## Sincerely at a glance - Built for: B2B revenue teams and their agents - Writing: every piece is researched and written for its recipient from CRM context and sourced, dated account facts. You supply the brief and the review rule, not the personalized values - Personal pages: each postcard and letter can open a page Sincerely renders and hosts for its recipient, with their name, company, the note from the card, spans written for them, and a form prefilled from the CRM. One published page, nobody builds a page per contact - Finding accounts: describe who you sell to and the agent finds the companies and the people in them, with typed business addresses that wait for your review - Design: a brand kit built from your website, then generated, proofed, versioned designs approved before any piece uses them - Handwriting: written with a real pen by Sincerely's own staff and photographed before it mails - Measurement: an account-level holdout drawn at launch, a locked primary outcome, and a readout with an interval that says when the sample is too small - Live formats: standard 4x6 and 6x9 postcards, letters, handwritten 4x6 postcards and letters, and gifts - Reach: every live format in the United States and Canada - Fulfillment: one workspace routes every format to the right vendor by format and country. There is no print API, handwriting service, gifting platform, or Canadian printer to contract with or stitch together - Pricing: prepare on the free audit plan, run a $199 one-time pilot, or choose a paid plan starting at $250 per month. [See current pricing.](https://trysincerely.com/pricing) ## The problem Your buyer deletes a hundred emails before lunch. Then opens the one thing on the desk that came on paper. - Email, LinkedIn, phone, and ads are saturated: every team runs all four, so the buyer has learned to delete the category - Mail is open: a few pieces a week, opened by hand, kept on the desk until someone deals with it A buyer's morning: 8:10, 140 emails. 9:30, 12 LinkedIn requests. 11:45, 4 missed calls. 1:05, 1 letter, opened. An illustrative morning, not a measurement. The one number we can cite: 77% of physical mail gets read or looked at, JICMAIL Q4 2024, attention in the home rather than a B2B response rate. [We went looking for the real B2B evidence.](https://trysincerely.com/does-direct-mail-work-in-b2b) ## How it works Mail that reads like you spent an afternoon writing each one. Contacts, design, send, learn, in one connected loop. Build a list, approve a reusable design, run the campaign, and read what happened. Each step on the page shows the product surface it describes, drawn with fictional sample data. ### Build the list Sync Salesforce, HubSpot, or a CSV, or describe who you sell to and the agent finds the accounts and the people. Every address is checked before anything prints, and the weak ones wait for review. The page shows the contacts table with a mail status on every row. [Lists and integrations](https://trysincerely.com/integrations) ### Personalize every piece Brief the agent once. For every recipient it researches the account, writes from sourced facts, and shows where each claim came from. The page shows three approved postcards from three senders, each in its own brand and voice, each written for one recipient from a sourced signal, with the personalized words underlined. [Formats and templates](https://trysincerely.com/formats) · [Landing pages and QR codes](https://trysincerely.com/landing-pages) The sample letter in the hero reads: > Hey Talia, > > Congratulations on the Series B. Eleven open sales roles tell me you’re putting it to work quickly. I like the ambition. > > We help growing sales teams get their outbound motion ready for hiring waves like this. I mapped out what I’d prioritize for your team before June, drawing on what two other Series B teams changed before their reps arrived. > > Scan the QR code for the four-minute read. You’ll find the full plan there, plus an easy way to reply or book time if you’d like to compare notes. > > Sincerely, > > Julian Park · Head of GTM ### Run the campaign Reuse an approved design across campaigns and personalize it for each list, inside the budget, frequency caps, and review rules you set. Nothing prints without an explicit launch. The page shows a live campaign's pipeline and its experiment contract, sealed at launch. [Campaigns](https://trysincerely.com/campaigns) ### Measure the lift Track link opens separately from responses. An account-level holdout estimates lift with a range; small tests stay descriptive. Compatible cohorts can build a pooled readout over time. The page shows a lift readout of +39% (illustrative, range +12% to +61%) beside a campaign still learning. [Attribution and measurement](https://trysincerely.com/measurement) ## Inside the product See how a campaign moves through Sincerely. Add or discover contacts, design what to send them, orchestrate the sends at scale, test and iterate, then scale what works. The page holds an interactive replica with fictional sample data; on a smaller screen it shows one view from the tour. ## Agents Run it yourself, or hand the workflow to an agent. The assistant in the product and any agent you connect share one set of tools, permissions, and review gates. ### Use the in-app agent Open it from any page in Sincerely. Ask it to build a list, research accounts, write recipient-specific copy, prepare a campaign, or explain the results. It shows you what it is doing in plain words, never raw tool calls. - Builds and enriches lists - Writes pieces and landing pages - Prepares and launches campaigns - Explains the readout [Learn about the in-app agent](https://trysincerely.com/agents) ### Connect your own agent One OAuth MCP connection gives Claude, Cursor, or another client the same workspace tools, durable campaign state, permissions, and review gates as the assistant in the product. No second integration to maintain. - OAuth, scoped per workspace - The same tool catalog - The same permissions - The same approval gates [Read the MCP connection guide](https://trysincerely.com/integrations/mcp-agents) ## Common questions More of them, with the numbers, on [pricing](https://trysincerely.com/pricing). ### What is Sincerely? Direct mail software for B2B revenue teams. It finds or imports the accounts, researches each one, writes a postcard, letter, handwritten note, or gift note for the person receiving it, can give each postcard and letter a page rendered for that person, mails it through the right vendor, and measures lift against a holdout. ### Is this like an ads manager? Yes. Pick a list, design, campaign, budget, and success metric, and Sincerely runs the rest. The difference is timing: mail takes about a week to arrive, and the lift readout waits for the measurement window to close. ### Do I need to bring my own contacts? You can. Sync them from Salesforce or HubSpot, or load a CSV. You can also discover new prospects with the in-app agent's prospecting and enrichment, and anything it finds waits for your approval. ### How does personalization work? Brief the agent once. For every recipient it researches the account from your CRM and public sources, writes from the facts it finds, and links each claim to its source. The approved design stays fixed; only the words change, and you can hold any piece for approval. Each postcard and letter can also open a page Sincerely renders for the same person. ### What does starting free include? Connecting a CRM or uploading a CSV, mailability review, your brand kit, designs, and drafts. Nothing mails or charges you until you choose a paid option, starting with a one-time $199 pilot of 500 credits, enough for 100 US 4×6 postcards. ### Do I need my own print vendor? No. Sincerely routes each piece to the right print or gift vendor for its format and country, and your credits cover printing and postage. Postcards, letters, handwritten notes, and gifts run from one workspace, so you never stitch together a print API, a handwriting service, a gifting platform, and a second printer for Canada. ### Where can you mail? The United States and Canada, in every live printed and handwritten format: standard postcards, letters, and handwritten pieces. Gifts cover the United States in full, and 28 of the 46 catalog products also ship to Canada. ### How do you know the mail worked? A random holdout of accounts receives nothing. The readout compares them with the accounts you mailed and shows the estimated lift, its range, and whether the test was large enough to call. ### How do you prevent the wrong piece from mailing? Sourced contacts and personalized pieces can be held for review, and nothing prints until you launch. --- Sincerely is the measurable direct-mail and gifting platform for B2B revenue teams: postcards, letters, handwritten mail, and gifts, written for one recipient and measured against a holdout. Contact Sincerely: https://trysincerely.com/contact Agent routing index: https://trysincerely.com/llms.txt