How print-to-mail works

You upload the files you already have. You approve setup and mail options. We print and hand the pieces to USPS.

The five steps

Five steps. You upload. We produce and hand off to USPS.

  1. Upload

    PDF, Word, images, multi-file packages, recipient lists — formats you already use.

  2. AI setup

    Addresses and a proposed setup. You approve before production.

  3. Choose options

    Mail class, paper, duplex, color, finish. What’s in the product →

  4. We produce

    Print, insert, address, postage — no supplies on your side.

  5. USPS handoff

    On your scheduled mail date (Mon–Fri). Cutoffs below decide same-day vs next business day.

The USMail.ai app. Chat or Guided. Drop a file or ask Posty. Sign in to generate proof.
The app. Drop a file. Sign in. Generate proof. Nothing prints until you approve.

What you approve

AI proposes. A human confirms. Production waits on that click.

Setup, print options, mail class, and the mail date sit in front of you. Flagged addresses sit there too. You can change the job. You can take pieces off. You can stop.

Approve on the app debits the prepaid meter. That is when we produce. Agents can prepare a job. They cannot skip this step. MCP →

Each job is its own job

Recurring statements and invoices use the same five steps. We do not auto-mail next month because last month ran. You export the file. You upload it. You approve the job in front of you. Statements & invoices →

Mail-piece tracing & tracking

Three different capabilities — don’t mix them up.

Tracing

Included

Included status on qualifying domestic First-Class letters and First-Class postcards — barcode scans through out for delivery, viewable per piece in the job.

Not legal proof · not Marketing Mail · not international · good address required

Tracking

Extra cost

Formal USPS tracking as an option on Priority and Certified Mail — beyond included First-Class tracing.

Certified is never same-day

Proof services

Live

Certified Mail / Certificate of Mailing — formal proof, not tracing.

Certified details →

Production cutoffs

Times are Central. Mail dates Mon–Fri only. Certified is never same-day.

Same-day

Approve by 1:00 PM CT

Mail date Today — only if all of these hold:

  • First Class letter only (no Certified, Priority, flats, postcard, legal)
  • 100 pieces · ≤ 2 sheets each
  • Plain #10 or Utah envelope · letter paper
  • No inserts · no return/reply envelope
  • No custom/logo envelope (those must be approved first; 1–2 business days)

Next business day

Approve by 10:00 PM CT

Default path. Before 10:00 PM → next business-day mail date. At/after 10:00 PM → rolls later.

Later schedule

Up to 60 days

Pick any weekday mail date up to 60 days ahead.

Formats we accept

Start with files you already have — not a rebuild into one rigid PDF.

PDF Letters, statements, notices, multi-page packages
Word DOC / DOCX correspondence and exports
Images PNG, JPG scans and signed pages
Lists CSV / spreadsheet recipients for list mail

Address quality before you approve

CASS and NCOA run on the job. Flagged pieces wait for you. Nothing prints until a human confirms.

After proof, address quality shows pieces that did not match cleanly. On First-Class you can fix, still-mail, or take a piece off the job. On Certified Mail a flagged address must be fixed or removed.

That check is not tracing and not Certified proof. CASS and NCOA →

How it works FAQ

How does USMail.ai work?

Five steps. You upload your documents. AI proposes addresses and setup. You choose mail class, paper, duplex, color, and finish, then you approve. We print, insert, and apply postage. We deliver the pieces to USPS on your mail date.

What are the production cutoffs?

Same-day when the job qualifies: approve by 1:00 PM Central, Mon–Fri. Default path: approve by 10:00 PM Central for the next business-day mail date. Certified is never same-day. Details in the cutoff cards above.

Is tracing included? Is tracking included?

Tracing is included on qualifying domestic First-Class letters and First-Class postcards. That is not Marketing Mail. That is not legal proof. USPS tracking is an option on Priority and Certified Mail. Proof options (Certified / Certificate of Mailing) are not the same as tracing.

Can agents send mail?

Yes. MCP is available now on the app. Account plus prepaid meter. A human still approves. MCP docs →

When do addresses get checked?

After proof, on the production path. CASS and NCOA are included. You review flagged pieces before you approve. On Certified Mail you cannot still-mail a flagged address. Address verification →

Do you auto-mail next month because this job ran?

No. Recurring statements and invoices use the same path. You approve the job in front of you. Last month does not mail this month. Statements & invoices →

See it on a demo

Open the app.