Kamol Nazarov The back office lab Brooklyn, NY

N°09 · Private tool · 2026 · Sign-in only

ScaledMail

Cold email I can pause, audit and stop: every follow-up waits for its window and cap, and stops the moment someone replies.

Client
Internal, my outreach
Role
Author
Built with
React 19, Express 5, Prisma + PostgreSQL, pg-boss, Nodemailer, ImapFlow
Status
Private · every data route needs my sign-in
Live at
Nowhere public to use. The dashboard sits behind my sign-in; the unsubscribe and email-tracking links work without it.
A laptop on a Brooklyn desk at night showing the ScaledMail overview, “Good conversations start here.”
Synthetic data

What it does

  1. 01

    A send-safety state machine

    Each message is committed before the SMTP call. Anything that can’t be confirmed is flagged for review, never re-sent automatically.

  2. 02

    Replies stop the sequence

    Any reply, even an out-of-office, stops that contact’s follow-ups. Unsubscribe is one click, and suppression is permanent.

  3. 03

    Private by design

    One owner, Argon2id passwords, 12-hour sessions, CSRF on every change, secrets encrypted at rest, live sending off by default.

The thing to see

The queue calendar: every waiting message shows its estimated send time or the exact reason it’s held (mailbox paused, outside window, quota limit, suppressed). Synthetic data.
The queue calendar: every waiting message shows its estimated send time or the exact reason it’s held (mailbox paused, outside window, quota limit, suppressed). Synthetic data.

Proof

  • 7blockers checked before any send (suppressed, mailbox paused, sync stale, paused, campaign paused, outside window, quota limit)sending.ts
  • 12 hsession lifetime; a second owner can’t be createdauth.ts
  • 401what the dashboard’s data routes return to anyone not signed in as melive check, Oct 21 + server/app.ts

Reply, bounce and inbox-placement rates aren’t measured yet, so none are quoted.

On screen

ScaledMail overview with synthetic data: 617 provider-accepted, 54 replies.
Reports by campaign, mailbox and step.
Campaigns list.

Rendered from the real frontend fed synthetic data. The live dashboard sits behind my sign-in, and none of its data was used.