Buy domains and inboxes by the capacity you actually need.
Standard plans are self-serve up to 40 domains. Pre-warmed inventory is available separately while capacity lasts. Book a planning call for larger or custom deployments. No setup fees, ever.
Standard plans, public prices.
Plus a one-time domain purchase (or bring your own).
10 domains. Up to 100 inboxes. Your first serious pool.
Plus a one-time domain purchase (or bring your own).
20 domains. Up to 200 inboxes. The practical middle lane.
Plus a one-time domain purchase (or bring your own).
40 domains. Up to 400 inboxes. Largest standard package.
40+ domains or multi-client deployments. Mapped on a call.
Match your situation to a plan.
Every plan is month-to-month with no setup fee. If you outgrow one, upgrading is a conversation, not a migration.
Testing the channel or standing up your first serious pool.
A proven campaign that needs steady weekly volume.
Multiple campaigns or heavy pipeline targets.
40+ domains, multi-client, or a hard deadline.
What your monthly subscription covers.
The monthly price isn't for the mailboxes alone. It's for the operating layer that keeps them sendable — month after month.
Licensed, Microsoft-hosted inboxes provisioned and maintained for outbound — licensing is included in the monthly price.
SPF, DKIM, and DMARC configured on every domain and kept correct as the pool changes.
Mailrun operates your domains, inboxes, and infrastructure state through one system. Customer-facing access and reporting vary by plan and rollout.
Bounce, complaint, and domain-health signals watched continuously across the pool.
Degrading domains are rested or repaired while the rest of the pool absorbs the volume.
Clean, sequencer-ready credentials and configuration whenever you need them — not just at setup.
Founder-led support with direct access to the operators responsible for the system.
Your campaigns, copy, lists, and sending decisions — and your domains, which remain your property.
Need API access? Customer API access is available for approved deployments after onboarding. Documentation and credentials are provided to authorized customers.
| Plan | Monthly | Domains today | Due today |
|---|---|---|---|
| StarterBYOD | $129/mo | $0 | $129 |
| StarterManaged | $129/mo | $150 | $279 |
| AgencyBYOD | $199/mo | $0 | $199 |
| AgencyManaged | $199/mo | $300 | $499 |
| ScaleBYOD | $349/mo | $0 | $349 |
| ScaleManaged | $349/mo | $600 | $949 |
Managed = Mailrun purchases the domains for you at $15 each, one-time. BYOD = bring your own domains. After today, you pay the monthly price only.
What happens once you buy.
Payment
Secure checkout, agreement to terms.
Account
Your customer record is created.
Provisioning
Domains and inboxes are queued and built.
Access
Mailbox credentials are delivered.
Handoff
Connect to your sequencer and ramp.
Standard fresh orders: order to mailbox access in hours, not weeks.
Three milestones from purchase to scale.
Mailbox access is fast. Sending capacity is earned. “Ready” means ready to begin controlled sending — volume grows as bounce, reply, complaint, and domain-health signals stay clean.
| Milestone | Fresh | Pre-Warmed |
|---|---|---|
| Mailbox access | Hours | Hours |
| Controlled sending | After warmup — we recommend at least two weeks | Day one, at controlled volume |
| Full campaign volume | Gradual ramp as signals stay clean | Still ramps — faster, not instant |
Some providers optimize for the cheapest mailbox. We optimize for durable sending.
Mailrun is built around Microsoft / Azure infrastructure, low inbox density, horizontal scale, and automated provisioning. It's a different operating assumption than commodity SMTP or Workspace mailbox vendors — built for senders who care about reputation over rock-bottom price.
Full collaboration-suite seats vs. purpose-built outbound infrastructure
| Outbound email inboxes | Mailrun | Google Workspace | Microsoft 365 |
|---|---|---|---|
| 100 | $129/moStarter | $840/mo | $720/mo |
| 200 | $199/moAgency | $1,680/mo | $1,440/mo |
| 400 | $349/moScale | $3,360/mo | $2,880/mo |
Workspace seats compared at list monthly prices as of July 2026: Google Workspace Business Starter $8.40/user/mo, Microsoft 365 Business Basic $7.20/user/mo on flexible monthly billing. Those are full collaboration suites — and that's the point: they price every seat like an employee, and running outbound email through your primary workspace puts your real domain's reputation on the line. Purpose-built cold email infrastructure costs less and keeps the risk off your company domain.
You may also see Google and Microsoft inboxes advertised far below the providers' published prices. Pricing that low warrants a closer look at licensing, tenant structure, inbox density, ownership, support, and replacement terms. Before purchasing, ask how licenses are sourced, how customers and domains are isolated, what you own, and what happens if accounts are disabled. A replacement inbox does not restore domain reputation or recover lost warm-up time.
Ready to size your pool?
Standard plans are self-serve up to 40 domains. Pre-warmed inventory is available separately while capacity lasts. Book a planning call for larger or custom deployments.