Mailpool
Multi provider inbox pooling across SMTP, Google and Microsoft.
From $3/inbox/mo API
Bottom line
SMTP, Google, and Microsoft inboxes for cold email. Mailpool SMTP is $3 per inbox per month, or $2.60 billed annually.
Stands out for: Start at one SMTP inbox for $3, with Google at $4 and Microsoft at $5, plus a full API.
Watch out for: No free trial. The $3 figure is monthly SMTP; annual SMTP is $2.60. Dedicated IPs start at $200 per server per month.
Overview
Mailpool sells email infrastructure as per-inbox SKUs. Mailpool SMTP is $3 per inbox per month, or $2.60 on annual billing (15 percent off). Google Workspace is $4 monthly or $3.40 annual. Microsoft 365 Outlook is $5 monthly or $4.30 annual. Dedicated IP servers are $200 per month, or $170 annual. Dedicated infrastructure is on-demand. Every inbox SKU includes AI domain generation, automated DNS, rotating IPs, live chat, and API access. FAQ says you can start with one $3 mailbox. No free trial.
Small teams pick Mailpool to buy one inbox without a 10-slot minimum. Annual billing is the cheaper unit rate. Dedicated IPs are a separate $200 server, not included in $3 SMTP. You can cancel from the dashboard. Sequencer names are not printed as a short list, though 150-plus integrations and API are claimed. This is a mixed SMTP and ESP shop, not a single Google reseller.
Who it's for
Best for
- 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
Not ideal for
- Buyers who want a free trial mailbox
- Teams that only want dedicated IPs under $100
Key features
SMTP relay. SMTP mailbox and relay infrastructure for high-volume outbound email.
Google Workspace. Official Google Workspace mailbox provisioning for outbound sending.
Microsoft 365. Official Microsoft 365 / Outlook mailbox provisioning for outbound sending.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Mailpool SMTP | $3/inbox/mo | $2.60 on annual billing |
| Google Workspace | $4/inbox/mo | $3.40 on annual billing |
| Microsoft 365 | $5/inbox/mo | $4.30 on annual billing |
| Dedicated IP | $200/mo | $170 on annual billing |
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. Vendors change prices without notice.
Is Mailpool expensive?
Mailpool starts at $3/inbox/mo. We list 36 deliverability tools in total. 4 have a free tier, and those with a public price typically start around $10 a month.
- 1 quote-based
- 4 free tier
- 35 public price
Worked out automatically from every deliverability listing, so it updates as the directory changes.
Pros and cons
Pros
- $3 SMTP inbox, no minimum
- API included on inbox SKUs
- Annual SMTP drops to $2.60
Cons
- No free trial
- Dedicated IP is $200/mo extra
- Google and Microsoft cost more than SMTP
What's new at Mailpool
No updates logged yet. Follow Mailpool and we will email you when it announces something new or its starting price changes.
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How Mailpool compares
See all Mailpool alternatives, with what each one does differently and a head to head for every pairing.
| Tool | Free tier | From | MCP | API | Compare |
|---|---|---|---|---|---|
| | – | $3/inbox/mo | – | ✓ | |
| | – | $75/mo | ✓ | ✓ | Compare |
| | – | $3/mailbox/mo | – | – | Compare |
| | – | $3.30/inbox/mo | – | ✓ | Compare |
| | – | $39/mo | – | ✓ | Compare |
$75/mo MCP API
SMTP packs from $75/mo for 30 if you want MCP as well.
$3/mailbox/mo
Forge shared-IP slots from $3 with a 10-slot minimum.
$3.30/inbox/mo API
Google inboxes at $3.30 with no SMTP SKU.
Your next step
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