The Infraforge Insider’s Guide
Everything we know about Infraforge in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Infraforge
The Insider’s Guide
Private cold email infrastructure on dedicated IPs
Every plan, grade, refund rule and rival among cold outreach tools, read from Infraforge’s own pages.
Made by Infraforge · checked Nov 12, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Infraforge’s own pages, its app-store listings and our grades. Every fact in it is on Infraforge’s page too, where it is kept up to date. Checked Nov 12, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
1.6
GPA, above 3 of the 47 other cold outreach tools we grade
Infraforge provides the domains and mailboxes cold email is sent from, hosted on dedicated servers and IP addresses rather than a shared pool. It sets up DKIM, SPF and DMARC automatically, adds warm-up, monitoring and sender rotation, and has an API for managing domains and mailboxes in bulk. It is a sibling product to Mailforge from the same vendor.
To get you started, here are 8 things to know about Infraforge, taken from its own pages and our grades.
It needs a sending tool beside it, and slots are charged whether you create a mailbox in them or not.
- 1
Best for dedicated-server mailboxes for cold email
Infraforge supplies the domains and mailboxes cold email goes out from, on dedicated servers and IPs.
- 2
Paid plans start at $4 a month
As its pricing page puts it: $4 per mailbox slot / month, billed quarterly, with a 10-slot minimum.
- 3
It runs on Web
Web.
- 4
Dedicated servers and IPs
Mailboxes send from dedicated servers, in contrast with Mailforge's shared IP pool; extra IP addresses can be added.
- 5
Automated DNS setup
DKIM, SPF and DMARC records are configured for each domain, with bulk DNS updates inside the app.
- 6
Warm-up and monitoring
The page lists automated warm-up, real-time deliverability monitoring and alerts, sender rotation and smart sending limits.
- 7
A 1.6 GPA, above 3 of 47
That is against the other cold outreach tools we grade, on value, the free plan, features, ease of use and platforms.
- 8
Keep it
To replace Infraforge you would be making a network of real inboxes that open and answer your emails. That is not a weekend's work, with an AI app builder or without one.
Infraforge at a glance
- Pricing
- Paid, from $4 per mailbox slot / month, billed quarterly, with a 10-slot minimum
- Free plan
- No
- Free trial
- None stated
- Runs on
- Web
- Made by
- Infraforge
- Category
- Cold Outreach
- Our grade
- 1.6 GPA, weak
The report card
Best for dedicated-server mailboxes for cold email
Infraforge supplies the domains and mailboxes cold email goes out from, on dedicated servers and IPs. It's $4 a slot a month on quarterly billing, with a 10-slot minimum. It needs a sending tool beside it, and slots are charged whether you create a mailbox in them or not.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | C | $4 a slot a month on quarterly billing, with a 10-slot minimum, so $40 at the floor. That sits mid-category before domains and add-ons. |
| Free plan and trial | F | No free plan and no trial. Each Forge product is a separate subscription. |
| Features | D | Domains, mailboxes, DKIM, SPF and DMARC, warm-up and rotation. But it only supplies the sending infrastructure and needs another product to send. |
| Ease of use | C | No store rating on record. Automatic DNS setup, but you buy domains, build slots and connect a sender. |
| Platforms and integrations | B | Web with an API, and a Forge family of Salesforge, Mailforge, Warmforge and Primeforge. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Infraforge is for
- Fits if you send cold email at volume and want dedicated IPs
- Works for agencies managing many domains through an API
Who it is not for
- Skip it if you want a sending tool, because you still need one
- Pricey if you add an IP, at $99 a month each
- Watch out: slots are billed whether or not a mailbox is created in them
- Not for you if you want a trial: there isn't one
Good to know
Good for
- Senders who want dedicated IPs for cold email
- Agencies and teams that provision many mailboxes through an API
- Teams that already have a sending tool and need only the infrastructure
Worth knowing
- Slots are billed whether or not a mailbox is created in them, with a minimum of 10.
- Domains are bought separately; the calculator prices .com at $14 a year, charged once, with no annual discount on domains.
- Extra add-ons cost more: $99 a month per additional IP address, $2 per domain a month for SSL and domain masking, and $7 to $9 per workspace a month for Masterbox.
- There is no free trial, and each Forge product is a separate subscription.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$4
A month to start
Infraforge is a paid product, starting at $4 per mailbox slot / month, billed quarterly, with a 10-slot minimum.
That sits mid-category before domains and add-ons.
Mailbox slots
$4
per mailbox slot / month, billed quarterly, 10-slot minimum
Slots are charged whether or not a mailbox is created. The calculator shows 25 slots at $100 a month billed quarterly, or $83 a month billed yearly.
Read from infraforge.ai on Nov 12, 2026.
Ways to pay less
Annual discount
Two months free on annual mailbox billing
The FAQ says annual billing for mailboxes gets 2 months free automatically; there is no discount on domains.
Stated on infraforge.ai
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Private cold email infrastructure on dedicated IPs. Here is what it does, as its own site describes it, and what it covers: public API, inbox warm-up, dMARC.
Domains, mailboxes, DKIM, SPF and DMARC, warm-up and rotation.
- Dedicated servers and IPs
- Mailboxes send from dedicated servers, in contrast with Mailforge's shared IP pool; extra IP addresses can be added.
- Automated DNS setup
- DKIM, SPF and DMARC records are configured for each domain, with bulk DNS updates inside the app.
- Warm-up and monitoring
- The page lists automated warm-up, real-time deliverability monitoring and alerts, sender rotation and smart sending limits.
- API, MCP and CLI
- The Infraforge API is included with the subscription and can manage domains and mailboxes programmatically.
- Pre-warmed mailboxes
- Pre-warmed infrastructure is offered for sending right away.
- Workspaces and Masterbox
- Multiple workspaces, plus a Masterbox add-on that shows all emails across a workspace's accounts in one view.
Where it runs
- Web
What it works with
- Salesforge
- Mailforge
- Warmforge
- Primeforge
Infraforge is made by Infraforge.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
3/47
Other cold outreach tools it is graded above
Infraforge's GPA of 1.6 is higher than 3 of the 47 other cold outreach tools we grade, and level with 1.
It stands best on platforms and integrations (B, above 9 of 47) and worst on free plan and trial (F, above 0).
Its paid plans start at $4 a month, against a middle price of $39 for the category: 2 of the 43 others that charge start lower.
On features, ease of use and platforms it scores 2.0 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price.
Each grade against the category
Every bar is all 48 cold outreach tools we grade, cut by the letter each got. Infraforge’s own letter is outlined.
- CValue for moneyAbove 9 of 47
- FFree plan and trialAbove 0 of 47
- DFeaturesAbove 0 of 47
- CEase of useAbove 0 of 47
- BPlatforms and integrationsAbove 9 of 47
Price against what you get
Each dot is one of 44 cold outreach tools. Further left costs less; higher up scores better on features, ease of use and platforms. Infraforge is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Infraforge you would be making a network of real inboxes that open and answer your emails. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 43 of the 47 other cold outreach tools grade higher. It costs $48 a year.
What you could not
- A network of real inboxes that open and answer your emails.
- Reading the reports inbox providers send about your domain.
- It plugs into other products, Salesforge, Mailforge and Warmforge among them, and has an API.
What this rests on. Infraforge’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Mailforge, Maildoso, Inboxkit, Salesforge and Warmbox
The 5 tools Infraforge is most often weighed against, with where each one differs from it.
- 1.6GPA
Mailforge
From $3/mo
Shared-IP domains and mailboxes built for cold email sending.
- 1.4GPA
Maildoso
From $75/mo
Cold email mailboxes and domains sold by the mailbox.
- Infraforge also covers inbox warm-up.
- 1.8GPA
Inboxkit
From $2.50/mo
Google and Microsoft mailboxes for cold email, priced per mailbox.
- 2.8GPA
Salesforge
Free trial · from $40/mo
Cold email and LinkedIn sequences with AI-written messages.
- Infraforge also covers inbox warm-up and dMARC.
- Salesforge also covers AI agents and email campaigns.
- 1.8GPA
Warmbox
From $15/mo
Email warm-up through a private network of inboxes.
- Infraforge also covers dMARC.
- Warmbox also covers reports.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
14
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Infraforge free?
No. Infraforge is a paid product, starting at $4 per mailbox slot / month, billed quarterly, with a 10-slot minimum.
How much does Infraforge cost?
Infraforge lists one plan. Mailbox slots: $4 per mailbox slot / month, billed quarterly, 10-slot minimum.
What platforms does Infraforge work on?
Infraforge is available on Web.
Does Infraforge offer any discounts?
Infraforge publicly lists the following: Two months free on annual mailbox billing.
Does Infraforge have an Android app?
No Android app was listed when its pages were read on Nov 12, 2026. Infraforge is listed for Web.
Does Infraforge have an iPhone app?
No iPhone app was listed when its pages were read on Nov 12, 2026. Infraforge is listed for Web.
Is Infraforge open source?
Infraforge is not described as open source on its own site, as read on Nov 12, 2026.
Does Infraforge have an API?
Yes. Infraforge offers a public API, according to its own site.
What does Infraforge integrate with?
Infraforge's listing names Salesforge, Mailforge, Warmforge and Primeforge.
Who makes Infraforge?
Infraforge is made by a company of the same name.
What are the alternatives to Infraforge?
The closest alternatives to Infraforge in our directory are Mailforge, Maildoso, Inboxkit, Salesforge and Warmbox.
How does Infraforge compare with other cold outreach tools?
Infraforge's GPA of 1.6 is higher than 3 of the 47 other cold outreach tools we grade, and level with 1.
Is Infraforge good value for money?
ToolGPA grades Infraforge C for value for money. Its paid plans start at $4 a month, against a middle price of $39 for the category: 2 of the 43 others that charge start lower.
Could I make my own version of Infraforge?
To replace Infraforge you would be making a network of real inboxes that open and answer your emails.
Where this guide comes from
The prices, plans, platforms and features were read from Infraforge’s own pages on Nov 12, 2026, and the grades were given on Nov 12, 2026. Graded from this listing, whose facts were read from Infraforge's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Infraforge. Prices change, so check infraforge.ai before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
5,038
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
5,038
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Infraforge, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/infraforge
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Infraforge: The Insider's Guide", checked Nov 12, 2026. https://toolgpa.com/tools/infraforge
Know someone choosing between cold outreach tools?
Send them this guide: toolgpa.com/tools/infraforge/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded cold outreach tools after Infraforge, each with an Insider's Guide of its own.
- Cold Outreach Insider's GuideEvery one of the 48 cold outreach tools we grade, compared
- lemlist Insider's GuideCold email and LinkedIn sequences with a built-in lead database2.8 GPA
- Salesforge Insider's GuideCold email and LinkedIn sequences with AI-written messages2.8 GPA
- Saleshandy Insider's GuideCold email sequences with a B2B lead database in every plan2.8 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Infraforge’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Infraforge is a trademark of its owner, and this guide is not made, paid for or approved by Infraforge. Prices and plans change: check infraforge.ai before you buy.