Planning from $99/mo + inboxes
Shared SMTP
For teams that want GTM-managed SMTP capacity, readiness gates, and sequencer exports without dedicated IP isolation on day one.
Best for: First client launches, internal dogfood, early agency rollout.
SMTP package calculator
Plan safe sending capacity before you buy inboxes.
Translate list size, sequence length, send days, and risk tolerance into domains, inboxes, SMTP capacity, warmup assumptions, and a monthly planning estimate.
Planning from $249/mo + IP capacity
Dedicated SMTP
For customers that need dedicated infrastructure planning, stronger isolation, and explicit IP capacity before raising send caps.
Best for: Scaled agency programs and higher-volume client workspaces.
Placeholder until reseller terms are proven
Provider-backed mix
Future Microsoft and Google Workspace planning assumptions are included so buyers can model mixed fleets without claiming reseller readiness.
Best for: Planning native-provider expansion after reseller access is approved.
Why GTM prices above commodity
You are not paying for mailbox slots. You are paying for control.
Shared-IP panels race to the floor and pass the contamination risk to you. GTM value-prices above that floor and funds the layer that keeps sending safe: self-healing recovery, fail-closed export, measured proof, and an agent-native control plane.
Self-healing recovery
Burned credentials, blacklisted IPs, and dead domains get auto-replaced on operator approval.
Recovery events drive credential rotation, healthy-IP swaps, and spare-domain migration so a single failure does not strand a workspace.
Readiness-gated, fail-closed export
Inboxes only export to your sequencer once SMTP readiness passes — per row, fail-closed.
No blind sends: DNS, smoke tests, launch gates, suppression, and rate limits all clear before a single message leaves.
Placement and deliverability proof
Seed placement, manual phrase tests, an email tester, and DMARC monitoring measure where mail actually lands.
A redacted public proof feed publishes pooled cohort metrics once measured — pending the first prospect batch — instead of unverified placement claims.
Agent-native control plane
A read-only CLI and MCP server plus one-call provisioning let agents operate the infrastructure.
Auto-provision chains DKIM, inbox creation, and readiness polling behind a single call, reusing the same fail-closed gates as the dashboard.
What is included
The control layer ships with every tier.
Tiers differ on IP isolation and capacity, not on whether you get the safety layer. Prices below are planning anchors, not a final quote.
| Capability | Shared SMTPPlanning from $99/mo | Dedicated SMTPPlanning from $249/mo | Provider-backed mixPlanning placeholder |
|---|---|---|---|
| Workspace + client isolation | Included | Included | Included |
| Scoped API keys | Included | Included | Included |
| Readiness-gated, fail-closed export | Included | Included | Included |
| Self-healing recovery (credential / IP / domain) | Included | Included | Operator-driven |
| Placement + deliverability proof | Included | Included | Included |
| Agent-native CLI / MCP + auto-provision | Included | Included | Included |
| IP model | Managed shared capacity | Dedicated IP capacity | Provider-managed |
Calculator
Model the campaign before provisioning.
Defaults use conservative GTM sending-policy caps: 25 emails per inbox per day, 3 inboxes per domain, and 30-day warmup. Increase only when reputation stays green.
Capacity recommendation
Shared SMTP control plane
Lowest-friction package for readiness-gated SMTP inboxes on managed shared capacity.
Estimated monthly cost
$226
Planning estimate only.
Monthly emails
15,000
5,000 prospects x 3 touches.
Daily send requirement
693
Spread across 5 send days/week.
Recommended inboxes
28
25 emails/inbox/day cap.
Recommended domains
10
3 inboxes/domain by default.
Infrastructure caps
- SMTP IP capacity
- 2
- Domain daily cap
- 100
- IP daily cap
- 3,000
- Warmup assumption
- 30 days
Per-IP utilization should stay below 80 percent before adding traffic. Scale horizontally with more IPs or domains before raising inbox caps.
Cost assumptions
Shared SMTP control plane platform planning baseline$99
28 inboxes$112
10 managed domains$15
Domain registration, taxes, discounts, support tiers, and real Microsoft/Google reseller SKUs can change the final quote.
Readiness notes
- Treat this as a planning estimate, not a quote or deliverability guarantee.
- Readiness gates, seed-placement evidence, and fresh SMTP/IMAP smoke tests still decide exportability.
- GTM-managed shared SMTP capacity; IP count is a planning signal, not a line item.
Claims guardrails
Capacity is not permission to send.
The calculator helps scope infrastructure. Actual export and prospect sending still depend on readiness reports, launch gates, suppression, rate limits, alerts, and operator decisions.
No inbox placement, warmup, or ban-immunity guarantee is implied by a calculator result.
New workspaces still start behind seed-only, internal dogfood, and tiny-batch launch gates.
Aggressive caps require green reputation evidence; use conservative caps for new domains.
Provider-backed Microsoft and Google options are planning placeholders until reseller terms are live.