Head to head

Mailpool vs Zapmail

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

Mailpool

$3/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

Zapmail

$39/mo

Google Workspace and Microsoft 365 mailboxes for cold email. Starter is $39/mo for 10 Google mailboxes.

Where Zapmail fits

  • Freelancers starting with 10 Google inboxes
  • Agencies that want pre-warmed Workspace accounts
  • Teams exporting to Instantly or Smartlead
  • Senders who need one domain per workspace

At a glance

DetailMailpoolZapmail
Starting price$3/inbox/mo$39/mo
Free tier–No–No
MCP server–No–No
Public API✓Yes✓Yes
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

Zapmail

Stands out: Pre-warmed US/EU Google and Microsoft mailboxes with automated DNS and OAuth export to sequencers.

Watch out: API access starts on Pro at $299/mo. Extra Google mailboxes cost $3.50 each on Starter.

Not the right fit for

  • Buyers who need API access on Starter
  • Teams that want dedicated SMTP IPs they control

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

Zapmail

  • Starter $39/mo for 10 mailboxes
  • Pre-warmed Google and Microsoft
  • OAuth export to major sequencers
  • API only on Pro at $299/mo
  • No published free trial
  • Extra Starter mailboxes are $3.50

What each one costs

Mailpool

$3/inbox/mo

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

Checked 19 Sep 2026

Zapmail

$39/mo

Starter is $39/month for 10 Google mailboxes, extra mailboxes $3.50. Growth is $99/month for 30, extra $3.25. Pro is $299/month for 100, extra $3.00, and includes API access. All plans billed monthly. Pre-warmed Google and Microsoft accounts. No free trial. Confirm current terms on the vendor site.

Checked 19 Sep 2026

Common questions

Is Mailpool cheaper than Zapmail?
Mailpool starts lower, at $3/inbox/mo against $39/mo for Zapmail. 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 Zapmail 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?