Cold email that runs like infrastructure.
Every client gets their own workspace: separate contacts, journeys, templates, analytics and SMTP. You plug in your own mail server, so nobody meters your sends and nobody prices your growth. That is why OutboundOS costs once.
No card to start. Any SMTP provider. No send limits, ever.
- Step 1Intro email09:00 IST, 1,240 contacts
- OpenedCase study follow upbranch A, plus 2 days
- Not openedNew subject linebranch B, plus 3 days
- Step 3Booking ask07:00 local, converges
Delivery is your SMTP, not ours
Row level, enforced in the database
No renewals, no seat creep
Connect SMTP, import, launch
Stop renting your outbound. Own it.
- Priced per email, so growth costs more every month
- One shared account for every client you run
- Their sending pool, their reputation, their throttles
- Seats billed monthly, forever
- Your list lives inside someone else's product
- Priced once, whatever your volume becomes
- A separate workspace per client, fully isolated
- Your SMTP, your domain, your reputation
- Seats included in the tier you bought
- Export your contacts and logs any time
Cold list to running engine in four moves.
No implementation call, no onboarding fee, no sales demo. Sign up and build.
- 01
Create a workspace
One per client, brand or region. Everything inside stays scoped to it, with no crossover.
- 02
Connect its SMTP
Zoho, Google Workspace, Mailgun, Amazon SES. Verify the handshake in app before a single email leaves.
- 03
Import contacts, build journeys
CSV import, templates, delays, exact send times and separate follow ups for openers and non openers.
- 04
Watch it run
Per workspace analytics and logs show exactly how many contacts sit in each step, and why.
Everything the system needs. Nothing metered.
One account, many workspaces
Spin up a workspace per client, brand or region. Contacts, journeys, templates, SMTP credentials, analytics and logs all live inside it and never leak across.
Your SMTP, your rules
Zoho, Google Workspace, Microsoft 365, Mailgun, Amazon SES or your own relay. Verify the handshake in app before a single email leaves.
No shared pool. No send caps from us.
Branch on opens
Openers and non openers get different follow ups. Build trees, not blasts.
Per step send times
Pin a step to a clock time in a chosen timezone. 07:00 IST stays 07:00 IST.
AI personalization
Per contact copy written at send time from company, title and purpose.
Batching and pacing
Send in batches with a delay between them so your provider stays calm.
Lists and CSV import
Bulk upload with auto column mapping, lists and per recipient overrides.
Analytics per workspace
Funnels, opens and sends for one client, never blended with another.
Activity logs
Every send, branch, error and API call recorded and searchable.
- Spring reactivationrunning
- Loyalty winbackrunning
- Store launchrunning
Sending from mail.acme.com, credentials stored server side and scoped to this workspace only.
Guardrails that stop the 1,200 email accident.
Per contact daily cap
A hard ceiling on how many emails one contact can receive in a day.
Circuit breaker
Runaway sending to a single address trips automatically and stops.
Deduplicated jobs
One send per enrollment per step, enforced at the database level.
Unsubscribe built in
One click unsubscribe links and retired contact handling out of the box.
Pay once. Keep the tier forever.
We sell the system, not the send volume. Your SMTP handles delivery, so nothing is metered. Tiers scale on workspaces, seats and stored contacts. Buy another code any time and it stacks onto your account.
All prices in USD, charged once. Checkout is handled securely by Stripe and codes are delivered to your account immediately after payment. No email limits on any tier.