---
title: "Inboxkit pricing"
description: "One flat rate per mailbox from $2.50/month on annual billing. No plans, no base fee, no minimum."
canonical: "https://www.inboxkit.com/pricing"
---

# Inboxkit pricing

Inboxkit charges one flat rate per mailbox. There are no plans, no base fee and no minimum. Google Workspace and Microsoft 365 mailboxes cost the same.

All prices are in USD.

## Mailboxes: Google Workspace and Microsoft 365

| Billing cycle | Per mailbox per month | Saving vs monthly | Billing |
| --- | --- | --- | --- |
| Monthly | $3.00 | - | Billed monthly from your wallet. |
| Quarterly | $2.70 | 10% | Billed every 3 months from your wallet. |
| Annual | $2.50 | 17% | Billed yearly from your wallet. |

The rate is the same at every volume. Ten mailboxes cost ten times the rate.

## Azure

Azure is billed per tenant, not per mailbox: $30.00 per tenant per month on every billing cycle. Each tenant holds up to 100 mailboxes.

## Pre-warmed mailboxes

Priced by how long the domain has warmed. Billed monthly, at the same rate on every cycle.

| Domain warmed for | Google Workspace or Microsoft 365, per mailbox per month | Azure, per tenant per month |
| --- | --- | --- |
| 2-4 weeks | $6.00 | $30.00 |
| 4-8 weeks | $7.00 | $40.00 |
| 8+ weeks | $9.00 | $50.00 |

Each pre-warmed domain also has a one-time domain fee, from $12.50. Teams on custom prewarm pricing see their own rates in the dashboard.

## Included with every mailbox

- Admin panel per domain
- Real-time monitoring
- 24+ integrations
- Full API
- Unlimited members
- Email & chat support

## Add-ons

- **Email Warmup**: Isolated warmup network, per mailbox.
- **InfraGuard**: Blacklist, DNS and bounce monitoring every 6 hours. 1st month free.

## How billing works

- Creating an account is free and needs no card. You pay only for the mailboxes you add.
- You top up a wallet. Each mailbox is charged from it on its own renewal date.
- Cancel any mailbox before its renewal. Switch billing periods at your next renewal.
- Refund policy: https://www.inboxkit.com/refund-policy

## Next steps

- Create a free account: https://app.inboxkit.com/signup?utm_source=pricing_md&utm_medium=markdown&utm_campaign=ai_agent
- Price a setup in the calculator: https://www.inboxkit.com/pricing
- Size mailboxes from your sending volume: https://www.inboxkit.com/resources/tools/mailbox-calculator
- API documentation: https://docs.inboxkit.com (authentication: https://www.inboxkit.com/auth.md)
- Custom pricing for very large deployments: https://www.inboxkit.com/demo

## Frequently asked questions

### How much does Inboxkit cost?

Inboxkit charges one flat rate per mailbox with no plans and no included slots: $3.00/mailbox/month on monthly billing and $2.50 on annual. Ten mailboxes cost ten times the rate; there is no base fee to clear first. Google Workspace and Microsoft 365 are the same price, with no Microsoft premium. Azure is billed at $30 per tenant per month, and each tenant holds up to 100 mailboxes. Every mailbox includes automated DNS setup, official admin panel access with 2FA, app passwords, and 24+ sequencer integrations.

### How much do pre-warmed mailboxes cost?

Pre-warmed mailboxes are priced by how long their domain has warmed, and billed monthly at the same rate on every cycle. Google Workspace and Microsoft 365 mailboxes are $6.00 for 2-4 weeks, $7.00 for 4-8 weeks and $9.00 for 8+ weeks, per mailbox per month. Azure is $30.00, $40.00 and $50.00 per tenant per month for the same windows. Each pre-warmed domain also carries a one-time domain fee, from $12.50. You pick them from Prewarm Inventory in your dashboard, and teams on custom prewarm pricing see their own rates there.

### Are there volume discounts?

The rate is the same at every volume: one mailbox and five hundred mailboxes are both $3.00/month, so there is no tier to climb. The discount comes from the billing cycle instead: $2.50 on annual, which is 17% off. For very large deployments, contact our team for custom pricing with dedicated support and SLA guarantees.

### Is there a free trial?

Creating an Inboxkit account is free and needs no card. You pay only for the mailboxes you add. There is no traditional free trial on top of that, and no minimum or plan to commit to, so you can start with a single mailbox for $3.00/month and scale from there. The first month of InfraGuard monitoring is free, which is enough to evaluate deliverability, DNS automation, and integrations before you add volume.

### Is there an Inboxkit promo code or discount?

There is no promo code today. The discount is built into the billing cycle rather than hidden behind a code: $2.50/mailbox/month on annual saves 17% against monthly. Creating an account is free, so you can see the exact total for your mailbox count before you pay anything.

### What payment methods does Inboxkit accept?

Inboxkit accepts all major credit cards (Visa, Mastercard, American Express). You top up a wallet and each mailbox is charged from it on its own renewal date. For agencies and enterprises managing large mailbox volumes, we also offer volume invoicing with NET-30 terms. Contact our sales team for custom billing arrangements.

### Can I switch between billing periods?

Yes. You can switch your billing period at any time. Moving from monthly to annual takes the rate from $3.00 to $2.50, 17% off. Changes take effect at the start of your next billing cycle, and any credit from your current period is applied automatically.

### What's included in the price?

Every mailbox includes automated DNS configuration (SPF, DKIM, DMARC), an official admin panel with 2FA for each domain, app password generation, full REST API access with webhooks, unlimited team members and workspaces, real-time monitoring and alerts, and integration with 24+ sequencers including Instantly, SmartLead, Apollo, and more.

### How does Inboxkit pricing compare to competitors?

Inboxkit is one flat rate per mailbox, $2.50/mailbox/mo on annual billing, for official Google Workspace and Microsoft 365 accounts with full admin control, US-IP addresses and 90%+ inbox placement. Most providers in this category price per mailbox too, but differ on whether you get real admin access, whether the IPs are shared, and whether DNS and warmup are included or extra. Our side-by-side comparisons cover each provider in detail.