---
title: "InfraForge Pricing 2026: Slots, IPs, Real Cost"
description: "Full InfraForge pricing breakdown for 2026: mailbox slot rates, domain fees, the $99/IP dedicated-IP cost, add-ons, and the real per-mailbox math at scale."
canonical: "https://www.inboxkit.com/learn/infraforge-pricing"
author: "Mohit Mimani"
published: "2026-06-04"
updated: "2026-06-04"
category: "Pricing"
---

# InfraForge Pricing 2026: Mailbox Slots, Dedicated IPs & Real Cost

InfraForge prices on mailbox slots, not active mailboxes: roughly $4/mailbox/month billed quarterly, dropping to ~$3.32/mailbox on annual billing (≈17% off), and as low as $2.50/mailbox at bulk volume. There's a minimum of 10 mailbox slots. Domains are $14/year (charged once annually). Every subscription includes automated DNS setup, inbox hosting and maintenance, API access, and support. The add-ons are where the real money sits: dedicated IP addresses at $99/month each, SSL & domain masking ($2/domain/month or $6/domain/year), and Masterbox unified inbox ($7–9/workspace/month). InfraForge is the private/dedicated-IP product in the Salesforge stack (Mailforge is the shared/cheaper sibling; for Google or Microsoft mailboxes, InfraForge points you to Primeforge). No free trial, no contract commitment, and invoicing is available.

## How InfraForge pricing works

InfraForge's commercial model has four defining rules:

- **You pay for slots, not active mailboxes.** A mailbox slot lets you delete and recreate mailboxes freely without extra charge — you're billed on slot count, not how many are live at any moment. Minimum buy-in is 10 slots.
- **Volume and billing term set your rate.** The per-mailbox price falls as you buy more slots, and annual billing knocks roughly 17% off the quarterly rate. The published range runs from $4 (quarterly, small) down to ~$2.50 (bulk).
- **It's private infrastructure, not Google/Microsoft.** InfraForge provides dedicated, private email infrastructure (SMTP-style) with optional dedicated IPs. If you specifically want Google Workspace or Microsoft 365 mailboxes, InfraForge itself directs you to its sister product, Primeforge.
- **The IP is an add-on.** Dedicated IPs — the whole point of "private" infrastructure for many buyers — are not bundled. They're $99/month each.

There's no free trial, no required contract, and InfraForge can issue invoices for teams that need them.

## InfraForge pricing: mailboxes and domains

| Item | Price | Notes |
|---|---|---|
| Mailbox slots (quarterly) | $4/mailbox/mo | Minimum 10 slots |
| Mailbox slots (annual) | ~$3.32/mailbox/mo | ≈17% cheaper than quarterly |
| Mailbox slots (bulk) | as low as $2.50/mailbox/mo | High-volume tiers |
| Domains | $14/year | .com, charged once per year |

Example from InfraForge's own calculator: 25 mailboxes works out to ~$83/month on annual billing or ~$100/month billed quarterly, plus domains (e.g. 8 .com domains = $112/year). Rates are from the [InfraForge pricing calculator](https://www.infraforge.ai/pricing).

## Add-ons (where the bill grows)

| Add-on | Price | What it does |
|---|---|---|
| Dedicated IP address | $99/month (quarterly) | Your own isolated sending IP |
| SSL & domain masking | $2/domain/mo (quarterly) or $6/domain/yr | Secure redirects + branded masking |
| Masterbox | $7/workspace/mo (annual), $9 (quarterly) | Unified view of all inboxes in a workspace |

**Included free with every subscription:** automated DNS setup, expert support, inbox hosting and maintenance, and full API access.

## What you actually get

InfraForge is built for teams that want control over their sending environment:

- **Private infrastructure** with the option of dedicated IPs for full reputation isolation.
- **Slot-based flexibility** — recreate mailboxes without paying again, useful when you rotate or refresh accounts.
- **Workspaces** for organizing mailboxes by client or campaign (a frequently praised feature for agencies).
- **Automated DNS, API access, and hosting** included in the base price.
- **Salesforge stack integration** — pairs with Salesforge (sequencing) and slots into a broader outbound toolchain.

The trade-off is what "private infrastructure" means: these aren't Google or Microsoft mailboxes. Dedicated IPs give you isolation, but they have to be warmed and sustained to perform — a cold dedicated IP at low volume can underperform a well-run shared Google setup.

## The real per-mailbox cost

The headline rate is only the start. Here's how it actually adds up:

- **Mailboxes only:** 25 slots on annual billing ≈ $83/month, plus ~8 domains at $14/year (≈$9/month amortized) = **~$92/month, or ~$3.68/mailbox all-in.**
- **Add one dedicated IP:** +$99/month nearly doubles the cost of a 25-mailbox setup, pushing the effective per-mailbox cost to ~$7.60. Dedicated IPs only make economic sense once you're sending enough volume per IP (roughly 1,000+/day) to justify and warm them.
- **At bulk:** the $2.50/mailbox tier is genuinely competitive, but it assumes high slot counts, and dedicated IPs remain a separate per-IP line.

The honest read: InfraForge's mailbox pricing is reasonable, but the dedicated-IP add-on is the variable that determines whether it's cheap or expensive. Buyers who add IPs without the volume to use them overpay significantly.

## Hidden costs and gotchas

Five things to weigh:

1. **Dedicated IPs are $99/month each.** This is the cost competitors most often flag. Safe scaling with multiple dedicated IPs gets expensive fast, and IPs need sustained volume to build reputation — otherwise you're paying for isolation you can't fully use.
2. **It's not Google or Microsoft.** InfraForge is private SMTP-style infrastructure. For mainstream Google/Microsoft mailboxes, InfraForge routes you to Primeforge — a different product and price.
3. **Minimum 10 mailbox slots.** No single-mailbox or tiny plans; the floor is 10 slots.
4. **Add-ons stack up.** SSL/domain masking ($2/domain/mo) and Masterbox ($7–9/workspace/mo) are useful but billed separately on top of mailboxes, domains, and IPs.
5. **No free trial.** You evaluate by subscribing. There is a yearly discount and no contract lock-in, but no free testing tier.

## How InfraForge pricing compares

| Provider | Model | Per-mailbox/mo | Dedicated IPs | Mailbox type | Best for |
|---|---|---|---|---|---|
| InfraForge | Slot-based + IP add-on | $2.50–$4.00 | $99/mo each | Private SMTP-style | Salesforge-stack teams wanting control + dedicated IPs |
| InboxKit | Plan + mailbox slots | $2.50–$3.50 | US IPs included | Official Google / Microsoft 365 / Azure | Official inboxes + built-in monitoring, no per-IP surcharge |
| Maildoso (SMTP) | Per-mailbox packages | $1.80–$3.10 | Shared (IP rotation) | Proprietary SMTP | Budget high-volume B2B SMTP |
| Mailscale / Mailbloom | Flat per private server | Flat per server | Dedicated, included | Private SMTP server | Dedicated-IP senders wanting flat pricing |

The honest positioning: InfraForge is a strong pick if you specifically want private infrastructure with optional dedicated IPs and you live in the Salesforge ecosystem — the slot model and workspaces are well-built, and support gets consistent praise. The catch is the $99/IP add-on and the fact that you're buying private SMTP-style infrastructure rather than official Google/Microsoft accounts. [InboxKit](https://www.inboxkit.com/) takes a different approach: official Google Workspace, Microsoft 365, and Azure mailboxes on premium US-IP infrastructure (no separate per-IP surcharge), full admin panels, and always-on InfraGuard monitoring built in — at a comparable $2.50–$3.50 per-mailbox range. If isolation is your goal, InboxKit delivers it through dedicated per-domain panels and US IPs rather than a $99/month dedicated-IP line item.

## Who InfraForge is best for at this price

InfraForge makes sense for **high-volume senders and agencies who want private infrastructure with the option of fully isolated dedicated IPs**, and who are already using (or plan to use) the Salesforge stack. If you send enough per IP to justify the $99/month, value slot-based flexibility, and want workspaces to organize client books, the pricing is fair and the control is real. It's a particularly clean fit for teams that have a clear reason to want dedicated IPs and the volume to keep them warm.

## Who should consider an alternative

InfraForge is harder to justify when:

- **You want Google or Microsoft mailboxes.** InfraForge is private SMTP-style infrastructure; for official Google/Microsoft accounts you'd use Primeforge or a provider like [InboxKit](https://www.inboxkit.com/) that specializes in official Google/MS365/Azure mailboxes.
- **You can't keep dedicated IPs warm.** At low-to-moderate volume, the $99/IP add-on buys isolation you can't fully use — a well-run shared setup may deliver better.
- **You want monitoring bundled.** InfraForge includes hosting and DNS, but always-on blacklist/DNS/bounce monitoring with alerting (like InboxKit's InfraGuard) is a different value layer.
- **You need a free trial or tiny plan.** No free trial and a 10-slot minimum make casual evaluation harder.

## Final verdict

InfraForge's pricing is transparent through its calculator, and the slot-based model is genuinely flexible for teams that rotate mailboxes. At $2.50–$4 per mailbox plus cheap-ish domains, the core infrastructure is fairly priced, and the included DNS automation, hosting, and API access add real value. For Salesforge-stack agencies that want private infrastructure and a clear path to dedicated IPs, it's a solid, well-supported choice.

The decision hinges on two things: whether you actually need dedicated IPs (at $99/month each, they only pay off at sustained volume), and whether private SMTP-style infrastructure fits — versus official Google/Microsoft mailboxes. If you want official Google Workspace, Microsoft 365, or Azure mailboxes on US IPs with monitoring built in and no per-IP surcharge, at a comparable per-mailbox price, [see how InboxKit compares](https://www.inboxkit.com/).

## Frequently asked questions

### How much does InfraForge cost?

Mailbox slots start at $4/mailbox/month billed quarterly, drop to about $3.32/mailbox on annual billing, and reach as low as $2.50/mailbox at bulk volume. The minimum is 10 mailbox slots. Domains are $14/year. Dedicated IPs are a $99/month add-on each.

### Does InfraForge include dedicated IPs?

No — dedicated IPs are an add-on at $99/month each. The base subscription covers mailbox slots, automated DNS, hosting, API access, and support. Dedicated IPs are optional and best justified at high sending volume.

### Are InfraForge mailboxes Google or Microsoft accounts?

No. InfraForge provides private, SMTP-style email infrastructure. For official Google Workspace or Microsoft 365 mailboxes, InfraForge directs you to its sister product, Primeforge.

### What's the difference between InfraForge and Mailforge?

Both are part of the Salesforge stack. Mailforge is the shared (cheaper) infrastructure product; InfraForge is the private infrastructure product with optional dedicated IPs and more control.

### Does InfraForge offer a free trial or annual discount?

There's no free trial. InfraForge does offer an annual discount (roughly 17% off the quarterly rate) and does not require a contract; invoicing is available for teams that need it.

### What add-ons does InfraForge charge for?

Dedicated IP addresses ($99/month each), SSL & domain masking ($2/domain/month quarterly or $6/domain/year), and Masterbox unified inbox ($7/workspace/month annual, $9 quarterly).

## Sources

- [InfraForge Official Website](https://www.infraforge.ai) (2026)
- [InboxKit Pricing](https://www.inboxkit.com/#pricing) (2026)

## Related

- https://www.inboxkit.com/learn/infraforge-review
- https://www.inboxkit.com/learn/infraforge-alternatives
- https://www.inboxkit.com/learn/infraforge-vs-instantly