Compare/Head to head

Mailpool vs Premium Inboxes

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

Starting price

Mailpool

$2.60/inbox/mo

SMTP, Google, and Microsoft inboxes for cold email. Mailpool SMTP is $3 per inbox per month, or $2.60 billed annually.

Where Mailpool fits

  • Teams starting with a single SMTP inbox
  • Agencies mixing SMTP, Google, and Microsoft
  • Senders who want annual billing at $2.60
  • Shops that need API access on the base inbox

Premium Inboxes

$3.50/inbox/mo

Done-for-you Google Workspace and Microsoft 365 inboxes for outbound sending, from $3.50 per inbox per month.

Where Premium Inboxes fits

  • Outbound recruiting teams that need real Workspace or M365 boxes
  • Agencies standing up client domains
  • Desks that want DNS and warmup handled
  • Buyers who need a public API on every plan

At a glance

DetailMailpoolPremium Inboxes
Starting price$2.60/inbox/mo$3.50/inbox/mo
Free tier–No–No
MCP server–No–No
Public API✓Yes–No
Listed underDeliverabilityDeliverability

Where they pull apart

Mailpool

Stands out: Start at one SMTP inbox for $3, with Google at $4 and Microsoft at $5, plus a full API.

Watch out: No free trial. The $3 figure is monthly SMTP; annual SMTP is $2.60. Dedicated IPs start at $200 per server per month.

Not the right fit for

  • Buyers who want a free trial mailbox
  • Teams that only want dedicated IPs under $100

Premium Inboxes

Stands out: Official Workspace and M365 inboxes with free replacements and sub-six-hour setup.

Watch out: It supplies the inboxes only. You still need a sequencer to send, and there is no MCP.

Not the right fit for

  • Teams that only need a sequencer, not inboxes
  • Buyers who want MCP

Pros and cons

Mailpool

  • $3 SMTP inbox, no minimum
  • API included on inbox SKUs
  • Annual SMTP drops to $2.60
  • No free trial
  • Dedicated IP is $200/mo extra
  • Google and Microsoft cost more than SMTP

Premium Inboxes

  • Official Workspace and M365, not lookalike domains
  • Setup in under six hours
  • Public API on all plans
  • No MCP
  • You still need a sequencer to send

What each one costs

Mailpool

$2.60/inbox/mo

Mailpool SMTP is $2.60/inbox/month billed annually, or $3 monthly. Google Workspace $3.40 annual / $4 monthly. Microsoft 365 $4.30 annual / $5 monthly. Dedicated IP $170 annual or $200/month. Dedicated infrastructure on demand. No free trial. API included. Start with one mailbox. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Premium Inboxes

$3.50/inbox/mo

From $3.50/inbox/mo. Confirm current pricing on the vendor site.

Checked 4 Nov 2026

Common questions

Is Mailpool cheaper than Premium Inboxes?
Mailpool starts lower, at $2.60/inbox/mo against $3.50/inbox/mo for Premium Inboxes. That is the entry plan on each side, so the real number depends on seats and the tier you land on.
Can you try Mailpool or Premium Inboxes for free?
Neither carries a free tier on our listing.

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Editorial listings, never paid rankings. Prices checked 4 Nov 2026. Confirm current terms on the vendor site. Spot an error?