Head to head

Infraforge vs Mission Inbox

Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.

Infraforge

$4/mailbox/mo

Private cold-email infrastructure from $4 per mailbox per month, billed yearly, with a 10-slot minimum and a REST API.

Where Infraforge fits

  • Agencies that want private IPs they control
  • Teams automating mailbox setup through the API
  • Senders who follow strict deliverability rules
  • Shops mixing Forge products for ESP diversity

Dedicated-IP outbound email infrastructure. Lite is $50/mo for 15 mailboxes and 5,000 sends.

Where Mission Inbox fits

  • Teams that want a dedicated IP from $50/mo
  • Developers sending over API or SMTP
  • Agencies that will pay as they grow past 15 inboxes
  • Senders who want MI Shield protection included

At a glance

DetailInfraforgeMission Inbox
Starting price$4/mailbox/mo$50/mo
Free tier–No–No
MCP server–No–No
Public API✓Yes✓Yes
Listed underDeliverabilityDeliverability

Where they pull apart

Infraforge

Stands out: Dedicated servers plus a public REST API at api.infraforge.ai for domains, mailboxes, and sequencer export.

Watch out: Minimum 10 slots. Extra IPs are $99 per month billed quarterly. No free trial. Separate from Mailforge.

Not the right fit for

  • Buyers who need fewer than 10 mailboxes
  • Teams that expect a high spam-complaint volume

Mission Inbox

Stands out: REST API, SDKs, SMTP, and webhooks sit beside mailbox plans, so developers can send without a sequencer UI.

Watch out: Lite pauses on overage instead of billing extra. Scale overage is $3 per mailbox and $1 per thousand sends.

Not the right fit for

  • Buyers who need unlimited sends on Lite
  • Teams that only want Google Workspace resale

Pros and cons

Infraforge

  • $4/mailbox/mo on yearly billing
  • REST API included
  • Dedicated private servers
  • 10 mailbox slot minimum
  • Extra IPs $99/mo quarterly
  • No free trial

Mission Inbox

  • Lite $50/mo with a dedicated IP
  • REST API, SMTP, and webhooks
  • Pay-as-you-go extras on Scale
  • Lite pauses when you exceed 5,000 sends
  • No published free trial
  • Not a Google Workspace reseller

What each one costs

Infraforge

$4/mailbox/mo

Mailbox slots $4/month billed yearly, 10-slot minimum. 25 slots are $83/month yearly vs $100/month quarterly. Extra IPs $99/month billed quarterly. Masterbox $7/workspace/month annual or $9 quarterly..com domains $14/year. SSL/masking $2/domain/month quarterly or $6/domain/year. API included. No free trial. Confirm current terms on the vendor site.

Checked 19 Sep 2026

Mission Inbox

$50/mo

Lite $50/month for 15 mailboxes and 5,000 sends (overage pauses). Scale $199/month for 30 mailboxes and 10,000 sends, then $3/mailbox and $1/thousand sends. Pro $99/month for 5 domains and 100,000 sends, extra domains $2, extra email $1/thousand. Dedicated IPs included. No free trial. Confirm current terms on the vendor site.

Checked 19 Sep 2026

Common questions

Is Infraforge cheaper than Mission Inbox?
Infraforge starts lower, at $4/mailbox/mo against $50/mo for Mission Inbox. That is the entry plan on each side, so the real number depends on seats and the tier you land on.
Can you try Infraforge or Mission Inbox for free?
Neither carries a free tier on our listing.

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Editorial listings, never paid rankings. Prices checked 19 Sep 2026. Confirm current terms on the vendor site. Spot an error?