--- title: "Direct mail vs email for outbound" description: "Email is free to send, which is why it stopped working. The honest math on moving outbound touches from the inbox to the mailbox, what paper cannot do, and how you would know whether it worked." canonical: https://trysincerely.com/vs-email last_updated: 2026-08-10 --- # Direct mail vs email for outbound > Email is free to send, which is why it stopped working. The honest math on moving outbound touches from the inbox to the mailbox, what paper cannot do, and how you would know whether it worked. Source: https://trysincerely.com/vs-email ## Your sequences aren't broken. The inbox is. AI made outbound email free to write, and a channel where sending is free is a channel where everyone sends more. Your buyer's inbox absorbs the increase without noticing, and if your reply rates have slid while your send volume climbed, you have watched it happen from the other side. That is not a tooling problem. It is the economics of a free channel, and better subject lines do not change the economics. This page is the case for moving some of those touches to paper: what it costs, what it cannot do, and how you would know whether it worked. It is not a case for abandoning your sequences. The two run best together, and we say so below. Where this page leans on industry figures they are consumer figures, and we label them as such; [we went looking for the real B2B evidence](https://trysincerely.com/does-direct-mail-work) and published what we found. ## The economics Free to send is expensive to trust. A channel earns attention in proportion to what it costs to use. Email costs nothing per send, so it fills until attention runs out, and every improvement in sending tools fills it faster. Mail costs real money per piece, which keeps the mailbox scarce, and scarcity is the mechanism: the piece gets opened because almost nothing else arrived that day. Paying for postage is not an unfortunate property of the channel. It is the reason the channel still works. | Measure | The inbox | The mailbox | | -------------------------- | ---------------------------------------------------- | ----------------------------------------------------------------------- | | Cost per touch | Effectively zero, which is the problem | A dollar and change, print and postage included | | What arrives | One of a hundred that morning, mostly deleted unread | A physical piece that sits on the desk until someone deals with it | | Who else is in the channel | Every vendor with a sequencer, at growing volume | Almost nobody, and fewer each year | | How it is measured | Opens and replies, neither of them causal | Lift against an account-level holdout, or descriptives honestly labeled | Per-piece prices are published on the [pricing page](https://trysincerely.com/pricing) with the markup disclosed, and a finished piece costs about a quarter of the average search ad click, which LocaliQ's 2026 cross-industry benchmark puts at $5.42. ## What paper cannot do A comparison that only lists the other channel's weaknesses is an advertisement. Here is the other side of the ledger. - **It is slow.** A piece takes days to land, not seconds. Mail suits moments you can see coming (a renewal window, a funding round, a deal gone quiet), not the follow-up your rep owes someone this afternoon. - **It costs real money per mistake.** A bad email is deleted and forgotten. A letter that gets the facts wrong sits on a desk with your logo on it, which is why every piece here carries its sources and nothing prints without a human sign-off. - **It does not iterate like email.** No subject-line tests across ten thousand sends by lunchtime. The feedback loop is weeks, so the audience selection and the writing have to be right before postage, not after. - **It does not replace your sequences.** The strongest pattern we see is paper running under the sequences you already send, so the letter is on the desk when the rep's email and call arrive. That is what [Outbound Air Cover](https://trysincerely.com/campaigns) is for. ## How you would know Move a hundred touches. Hold some accounts back. The argument above is a mechanism, not a measurement, and a mechanism is not a reason to reallocate budget. The measurement is a holdout: mail a slice of your target accounts, hold a randomized slice back, and compare opportunity rates when the sales cycle has run. Every campaign here that can support one is measured that way by default. If the number comes back flat, you have learned that mail is the wrong channel for your accounts, which is worth knowing and which no benchmark could have told you. The [holdout testing guide](https://trysincerely.com/holdout-testing) covers the design, and [measurement](https://trysincerely.com/measurement) shows the report it produces. The pilot is priced as an experiment: $199 one time, 100 pieces to your top accounts, all included, measured against an account-level holdout and credited toward a first month if you continue. If it created nothing, you learned it for $199. Details on the [pricing page](https://trysincerely.com/pricing). --- 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.