Inboxkit vs Mailpool (2026): which should you pick?
As of Nov 13, 2026, Inboxkit and Mailpool share a 1.8 GPA, neither has a free plan, and Inboxkit starts cheaper, at $2.50 a month against $2.60 a month.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
They get the same grade on all five counts.
Price, platforms and features side by side. The table says where each price was read and when.
Inboxkit
Google and Microsoft mailboxes for cold email, priced per mailbox
Which one is for you
Pick Inboxkit if
- Fits if you run a sequencer and need a lot of mailboxes fast
- Works for teams who want Google or Microsoft mailboxes, not shared SMTP
Look elsewhere if
- Skip it if you want a sending tool, since you still need a sequencer
- Not for you if you want a free trial, as there isn't one
- Watch out: warmup and InfraGuard are paid add-ons and their rates aren't shown
- Tight if you can't top up a prepaid wallet by card
Pick Mailpool if
- Fits if you already have a sequencer and need dozens of inboxes for it
- Works for agencies that want inboxes and domains set up in bulk
Look elsewhere if
- Not for you if you want something that sends campaigns, as it doesn't
- Skip it if you want a free trial, because there isn't one
- Watch out: Dedicated IP is $200 a server a month, $170 yearly, via a contact button
- Tight if you want the larger integration list, DNS Shield and domain masking, which sit on the bigger plan
How we grade them
| 1.8GPAInboxkitWeak | 1.8GPAMailpoolWeak | |
|---|---|---|
| Value for money | B$2.50 a mailbox a month on yearly billing, $3 monthly. Ten mailboxes is $25, in the cheapest quarter ($25). Domains cost extra, from $12.50 each, once. | B$2.60 an inbox a month on annual billing ($3 monthly), $3.40 for Google Workspace and $4.30 for Outlook. It's inbox infrastructure rather than a campaign tool, so the cost sits beside a sequencer's. |
| Free plan and trial | FNo free plan and no trial. Each mailbox is charged from the first month, out of a prepaid wallet. | FNo free trial. The FAQ says you can start for $3, which pays for the first mailbox. |
| Features | DIt supplies mailboxes and DNS, and needs a sequencer like Instantly or Smartlead to do anything. Warmup and InfraGuard are add-ons. | DBulk domain purchase, inbox creation, authentication and monitoring, and export to sending tools. A separate sequencing platform has to send the emails. |
| Ease of use | CNo store rating on record. DNS is automated, but you still connect mailboxes to another tool. | CNo store rating on record. DNS is automated, but you're wiring inboxes into other tools. |
| Platforms and integrations | BWeb with an API, plus Instantly, Smartlead, Apollo, Google Workspace and Microsoft 365. | BWeb, with an API, teams and export to 150+ integrations on the lower plan and 300+ on the larger one. |
| Best for | Google and Microsoft mailboxes for cold email | cold email inboxes bought in bulk |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Inboxkit and Mailpool. How we grade
Price against what you get
Inboxkit starts at $2.50 a month and scores 2.0 out of 4 on features, ease of use and platforms. Mailpool starts at $2.60 a month and scores 2.0.
They score the same, and Inboxkit starts $0.10 a month lower. Of the other cold outreach tools on the chart, none scores higher than Inboxkit for less, and none scores higher than Mailpool for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Inboxkit also covers inbox warm-up.
At a glance
| Inboxkit | Mailpool | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | $2.50 per mailbox / month, billed yearly ($3 billed monthly) | $2.60 per inbox / month, billed annually ($3 billed monthly) |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Inboxkit | Mailpool |
| Price read from | inboxkit.com | mailpool.ai |
| Checked | Nov 12, 2026 | Nov 13, 2026 |
Worth knowing
Inboxkit
- Mailboxes are paid from a prepaid wallet topped up by card, with NET-30 invoicing offered only for large volumes.
- Warmup and InfraGuard are paid add-ons; the pricing page does not give their rates.
- There is no free trial: creating an account is free, but each mailbox is charged from the first month.
- The page says there is no promo code; the saving comes from choosing quarterly or annual billing.
Mailpool
- This is sending infrastructure, not a campaign tool: a separate sequencing platform sends the emails.
- There is no free trial; the FAQ says you can start for $3, which covers the first mailbox.
- Dedicated IP is listed as $200 per server per month, $170 billed annually, and goes through a contact-us button.
- Larger plans in the comparison list more integrations (300+ versus 150+) and a DNS Shield and domain masking.
Key features
Inboxkit
- Official Google and Microsoft accounts
- Mailboxes are real Google Workspace or Microsoft 365 accounts with admin panel access and 2FA for each domain.
- Automated DNS setup
- SPF, DKIM and DMARC records are configured for you, and an isolated panel is kept per domain.
- Sequencer connections
- The vendor lists 24+ integrations with sequencers such as Instantly, Smartlead and Apollo, plus a full REST API with webhooks.
- Mailbox analytics
- Per-mailbox bounce and reply metrics, real-time monitoring and weekly mailbox reports.
- Warmup and InfraGuard add-ons
- Warmup runs on an isolated network, priced per mailbox; InfraGuard watches blacklists and DNS every 6 hours, with the first month free.
- MCP server
- An Inboxkit MCP server lets an AI assistant query mailboxes, domains, DNS and warmup, with hard-to-undo changes waiting for approval.
Mailpool
- Bulk domain purchase
- Buy or import many domains at once, with an AI domain generator and automated redirection.
- Inbox creation
- Creates mailboxes on Mailpool's shared network, Google Workspace, Microsoft 365 or dedicated servers.
- Authentication and monitoring
- Sets up SPF, DKIM and DMARC automatically and monitors domain and IP blacklists.
- Export to sending tools
- Exports inboxes by CSV or native integration, and sets up custom tracking DNS records for the connected tool.
- API and teams
- An API for automating setup, and workspaces for managing infrastructure with a team.
Plans
Inboxkit
Google or Microsoft 365 mailbox$2.50
per mailbox / month, billed yearly ($3 billed monthly)
Same rate at any volume. Includes DNS setup, a domain admin panel, API access and unlimited team members.
Azure tenant$30
per tenant / month, up to 100 mailboxes
Microsoft 365 mailboxes on Azure; each tenant holds up to 100 mailboxes.
Pre-warmed mailbox$6
per mailbox / month, domain warmed 2-4 weeks
$7 at 4-8 weeks and $9 at 8+ weeks of warming, billed monthly; each domain also has a one-time fee from $12.50.
Mailpool
Mailpool inboxes$2.60
per inbox / month, billed annually ($3 billed monthly)
Inboxes on Mailpool's own network with rotating IPs, AI domain generator and automated DNS setup. The annual rate is the page's 15% saving.
Google Workspace$3.40
per inbox / month, billed annually ($4 billed monthly)
Google Workspace inboxes with rotating IPs and custom profile pictures.
Microsoft 365 Outlook$4.30
per inbox / month, billed annually ($5 billed monthly)
Microsoft 365 inboxes with rotating IPs and custom profile pictures.
Dedicated IP$170
per server / month, billed annually ($200 billed monthly)
A private IP for unlimited-volume sending; the page links it to a contact-us button.
Dedicated InfrastructureCustom
On demand only: custom IP infrastructure, white-label option, extended API access and a dedicated customer success manager.
Ways to pay less
Inboxkit
- Annual discount
Annual billing saves 17%
Inboxkit's pricing page lists $2.50 per mailbox a month on annual billing against $3 monthly, and 10% off quarterly billing.
Mailpool
- Annual discount
15% off annual billing
The pricing page's Annual toggle shows a 15% saving on every inbox plan.
Common questions
Which is cheaper, Inboxkit or Mailpool?
As of Nov 13, 2026, Inboxkit is cheaper to start with: $2.50 a month, against $2.60 a month for Mailpool. Inboxkit starts at $2.50 per mailbox / month, billed yearly ($3 billed monthly), and Mailpool starts at $2.60 per inbox / month, billed annually ($3 billed monthly).
Which has a free plan, Inboxkit or Mailpool?
As of Nov 13, 2026, neither Inboxkit nor Mailpool has a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.