Head to head

Inframail vs Mission Inbox

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

Inframail

$147/mo

Microsoft-backed cold email inboxes on a flat $147/mo unlimited plan. No per-mailbox fee.

Where Inframail fits

  • Agencies that want unlimited Microsoft inboxes
  • Teams tired of per-mailbox Google bills
  • Senders who will bring or buy domains
  • Shops connecting inboxes to Instantly or Smartlead

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

DetailInframailMission Inbox
Starting price$147/mo$50/mo
Free tier–No–No
MCP server–No–No
Public API–No✓Yes
Listed underDeliverabilityDeliverability

Where they pull apart

Inframail

Stands out: Unlimited inboxes on your domains for a flat monthly fee, with SPF, DKIM, and DMARC set automatically.

Watch out: Microsoft-backed infrastructure, not Google Workspace. You still need a sequencer such as Instantly or Smartlead to send.

Not the right fit for

  • Buyers who need Google Workspace inboxes in the $147 plan
  • Teams that want a free trial before paying

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

Inframail

  • $147/mo unlimited Microsoft inboxes
  • Automated SPF, DKIM, and DMARC
  • No per-email sending fee
  • Core plan is Microsoft, not Google
  • No published free trial
  • You still pay for a sequencer

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

Inframail

$147/mo

Core Inframail plan is $147/month with unlimited Microsoft-backed inboxes and no per-email fee. Separate Google Workspace and Microsoft 365 lines are listed at $600/month with a $3 per-inbox rate. Done-for-you campaign setup is $3,497 once plus $499/month. Money-back is not a 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 Inframail cheaper than Mission Inbox?
Mission Inbox starts lower, at $50/mo against $147/mo for Inframail. That is the entry plan on each side, so the real number depends on seats and the tier you land on.
Can you try Inframail or Mission Inbox for free?
Neither carries a free tier on our listing.

Not the pair you wanted?

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