Infraforge review: SMTP mailboxes on dedicated IPs, billed by the quarter

Infraforge sells private SMTP/IMAP mailboxes on dedicated IPs: $12 a slot a quarter ($4 a month), down to $9 above 1,000 add-on slots, or $40 to $30 a year. There is no monthly billing, each extra IP is $99 a month, and warmup and sending are separate products. 100 mailboxes with Instantly and .com domains come to $536.67 a month before any extra IP.

Create mailboxesBook a call
  • Warmup and sending included
  • $2.50 a mailbox, 12 minimum
  • Month-to-month billing

Infraforge at a glance

Price per mailbox
from $2.50 (yearly, 1,000+ slots); $4 on small quarterly orders
Smallest order
10 mailbox slots, $120 a quarter, plus domains
Mailbox types
SMTP
Warmup
Required unless pre-warmed; Forge points to Warmforge, a separate product
MCP server
The shared Forge MCP server covers Infraforge workspaces, domains, mailboxes, DNS
Trustpilot
3.4 / 5 from 7 reviews

Who Infraforge fits

Pick Infraforge if

  • You want SMTP mailboxes on dedicated IPs
  • You already send from Salesforge
  • You can pay quarterly or yearly upfront
  • You provision from code through the API, MCP or CLI

Look elsewhere if

  • You want monthly billing
  • You want warmup and sending in the mailbox price
  • You need Google or Microsoft mailboxes (that is Primeforge)
  • You may need a refund

What Infraforge is

Infraforge is the dedicated-IP member of the Forge products from Salesforge: Mailforge sells SMTP mailboxes on shared IPs, Primeforge sells Google and Microsoft mailboxes, Warmforge warms and Salesforge sends. Each is its own subscription.

You buy domains in bulk or bring yours with full DNS control, and Infraforge sets the records and creates the mailboxes; the home page says the first domain and mailbox take 5 minutes. Forge recommends 30 cold emails per mailbox a day (100 at most), 2 to 3 mailboxes per domain and no more than 40 mailboxes per IP.

There is no sequencer. Infraforge integrates directly with Salesforge and says it works with other sending tools, without naming them on the page.

Private SMTP/IMAP mailboxes on dedicated IPs, with bulk domains, automatic DNS and an API; no sequencer source (opens the vendor's page in a new tab) Part of the Forge products of Salesforge; launched July 2024 source (opens the vendor's page in a new tab)

Infraforge pricing

What Infraforge charges and what the price includes, next to Outreach2day. Each cell links the page it comes from.

  • Price per mailbox

    Infraforge
    $12 a slot a quarter ($4 a month), down to $9 ($3) above 1,000 add-on slots; yearly $40 down to $30; no monthly billing source (opens the vendor's page in a new tab)
    Outreach2day
    $2.50 a month, warmup, sequencer and analytics included; volume price on a call from 1,000 mailboxes source

  • Smallest order

    Infraforge
    10 mailbox slots, $120 a quarter, plus domains source (opens the vendor's page in a new tab)
    Outreach2day
    12 mailboxes, $30 a month source

  • Domain cost

    Infraforge
    .com $14 a year, no yearly discount; SSL and masking $2 a domain a month source (opens the vendor's page in a new tab)
    Outreach2day
    $13 a year for a .com, $5 for a .info, registered to you; or connect your own for free source

  • Setup fees

    Infraforge
    None published; each extra dedicated IP $99 a month, billed quarterly source (opens the vendor's page in a new tab)
    Outreach2day
    No setup or platform fee; a card fee of 2.9% + $0.30 at checkout on new domains and the first month source

  • Warmup

    Infraforge
    Partly: Partly, or at extra costRequired unless pre-warmed; Forge points to Warmforge, a separate product source (opens the vendor's page in a new tab)
    Outreach2day
    Yes: IncludedIncluded for the life of the mailbox, 75+ warmup emails a day source

  • Sequencer

    Infraforge
    No sequencer; export to Salesforge, CSV for Smartlead and other tools source (opens the vendor's page in a new tab)
    Outreach2day
    Yes: IncludedIts own sequencer; syncs to Instantly and Smartlead, CSV export for 14 tools source

  • Export to other tools

    Infraforge
    Partly: Partly, or at extra costDirect integration with Salesforge and other sending tools; the page names no other tool source (opens the vendor's page in a new tab)
    Outreach2day
    Yes: IncludedSyncs to Instantly and Smartlead by API key; CSV export in the import format of 14 tools, EmailBison among them; SMTP/IMAP logins for any other tool source

  • API and MCP

    Infraforge
    Yes: IncludedAPI in the subscription: IPs, domains, mailboxes, exports; no rate limit enforced today. MCP: The shared Forge MCP server covers Infraforge workspaces, domains, mailboxes, DNS source (opens the vendor's page in a new tab)
    Outreach2day
    Yes: IncludedREST API on every account. MCP: Hosted MCP server: domains, mailboxes, warmup, campaigns, replies source

List prices from Infraforge's pricing page and Outreach2day's pricing page, checked . Taxes and card fees excluded.

Slots bill quarterly or yearly. The first 10 slots cost $12 a quarter each; add-on slots drop $0.30 a quarter per hundred, to $9 above 1,000. Yearly billing is $40 down to $30 a slot a year, two months free. Infraforge's calculator puts 25 mailboxes at $100 a month billed quarterly, $83 billed yearly.

On top: .com domains at $14 a year with no yearly discount, $2 a domain a month for SSL and masking, Masterbox at $7 to $9 a workspace a month, and $99 a month for each extra dedicated IP. Pre-warmed domains are $14 each plus the $4 slot, at least 4 domains with 2 mailboxes each.

What 50, 100 and 500 Infraforge mailboxes cost a month

Infraforge at its list price with the Instantly plan it needs to send and warm up, next to Outreach2day mailboxes in Instantly and Outreach2day on its own.

  • Infraforge + Instantly

    SMTP on dedicated IPs mailboxes at 30 cold emails a day each, Instantly for sending and warmup

    50 mailboxes

    $316.83a month

    $6.34 per mailbox · $9.60 per 1,000 emails · 1,500 emails a day

    100 mailboxes

    $536.67a month

    $5.37 per mailbox · $8.13 per 1,000 emails · 3,000 emails a day

    500 mailboxes

    $2,356.83a month

    $4.71 per mailbox · $7.14 per 1,000 emails · 15,000 emails a day

  • Outreach2day mailboxes + Instantly

    Keep Instantly, buy the mailboxes from us; 25 a day each

    50 mailboxes

    $232.83a month

    $4.66 per mailbox · $8.47 per 1,000 emails · 1,250 emails a day

    100 mailboxes

    $368.67a month

    $3.69 per mailbox · $6.70 per 1,000 emails · 2,500 emails a day

    500 mailboxes

    $1,716.33a month

    $3.43 per mailbox · $6.24 per 1,000 emails · 12,500 emails a day

  • Outreach2day all-in

    Mailboxes, warmup and our sequencer in one bill; 25 a day each

    50 mailboxes

    $135.83a month

    $2.72 per mailbox · $4.94 per 1,000 emails · 1,250 emails a day

    • 50 mailboxes at $2.50, warmup and sequencer included: $125
    • 10 domains at $13 a year: $10.83
    100 mailboxes

    $271.67a month

    $2.72 per mailbox · $4.94 per 1,000 emails · 2,500 emails a day

    • 100 mailboxes at $2.50, warmup and sequencer included: $250
    • 20 domains at $13 a year: $21.67
    500 mailboxes

    $1,358.33a month

    $2.72 per mailbox · $4.94 per 1,000 emails · 12,500 emails a day

    • 500 mailboxes at $2.50, warmup and sequencer included: $1,250
    • 100 domains at $13 a year: $108.33

Monthly list prices on monthly billing. Sending volume = mailboxes × emails per mailbox a day (Infraforge: 30, its own recommendation; Outreach2day: 25) × 22 sending days; the Instantly plan is the cheapest one that covers it. Infraforge domains at $14 a year, 3 mailboxes per domain; Outreach2day .com domains at $13 a year, 5 mailboxes per domain. Domains spread over 12 months. Above 1,000 mailboxes Outreach2day prices on a call.

100 Infraforge slots on quarterly billing are $400 a month, 34 .com domains $39.67 and Instantly Hypergrowth $97 for sending and warmup: $536.67, before any IP beyond the plan. 100 Outreach2day mailboxes are $271.67 with domains, warmup and the sequencer, or $368.67 if you keep Instantly.

Forge recommends Warmforge for warming Infraforge mailboxes, and Warmforge is free with Salesforge; if you send from Salesforge, swap the Instantly line for Salesforge Growth at $96 a month for up to 50,000 emails.

What Infraforge does well

  • Dedicated IPs: the reputation is yours alone
  • Bulk domains and mailboxes with automatic DNS in minutes
  • Slots from $3 a month above 1,000, $2.50 on yearly billing
  • An API without an enforced rate limit, the shared Forge MCP server and a CLI
  • Pre-warmed domains at $14 each

Verdict

Infraforge is for senders who want SMTP mailboxes on IPs of their own and are ready to manage the IP count, quarterly billing and two more products for warmup and sending.

Outreach2day gives you mailboxes on your own domains with warmup that keeps running and our own sequencer for $2.50 a month each, billed monthly, plus export to Instantly, Smartlead or 14 tools by CSV, an MCP server and an API. From 1,000 mailboxes we quote a volume price on a call.

Your size

What 100 mailboxes cost a month

121,000+
  • Infraforge + Instantly$536.67

    3,000 cold emails a day

  • Outreach2day mailboxes + Instantly$368.67

    2,500 cold emails a day

  • Outreach2day all-in$271.67

    2,500 cold emails a day

Outreach2day all-in is $265 a month less than Infraforge + Instantly ($3,180 a year), with warmup and the sequencer in the price.

Create 100 mailboxes

Switching

Moving from Infraforge to Outreach2day

  1. Keep your sequencer

    Connect Instantly or Smartlead in Outreach2day with an API key and the warm mailboxes are added to your account; other tools take a CSV in their import format, or SMTP/IMAP logins. How the export works

  2. Or move the campaigns

    Our sequencer runs campaigns with steps, a send schedule, stop on reply and one inbox for replies; import the contacts as a CSV and recreate the steps. The mailbox price stays $2.50.

  3. Warmup and the overlap

    New mailboxes warm for 14 days before cold email, and warmup keeps running after that. Keep the Infraforge mailboxes sending during those two weeks, then shift the volume and cancel Infraforge for the end of its billing period.

Cancel Infraforge by live chat at least seven days before the quarter or year ends; Forge does not refund. Domains bought there transfer out through support.

Infraforge limits, setup and terms

Each line links to the vendor's page it comes from.

Other Infraforge features

Dedicated IPs
The home page FAQ says each mailbox gets a dedicated IP; the help center describes a dedicated IP per setup source (opens the vendor's page in a new tab)
White label
Resell Infraforge on your own domain for a 20% revenue share source (opens the vendor's page in a new tab)

In detail

What the dedicated IP buys

Your mailboxes send from IPs no other customer uses, so another sender's complaints do not land on your reputation. A new IP also has no history, and Forge's limit of 40 mailboxes per IP means a large setup needs several, each $99 a month beyond the plan.

At 500 mailboxes that is 13 IPs at Forge's limit. The cost table leaves extra IPs out because the pricing page does not say how many IPs the slots include, so read its 500-mailbox figure as a floor.

API, MCP and cancelling

The Infraforge API comes with the subscription and has no enforced rate limit; the shared Forge MCP server covers workspaces, domains, mailboxes and DNS, and the home page now lists a CLI.

No Forge product refunds. Cancel by live chat at least seven days before the quarter or year ends, or the next term is billed.

Infraforge ratings

The Infraforge home page shows a "4.9 Rating" badge without a source. G2 did not load for us.

Infraforge or Outreach2day

We sell cold email mailboxes too. Where our product fits this buyer and where it does not.

Outreach2day fits if

  • You run 1,000+ mailboxes: we quote a volume price below every vendor list price in our comparisons, warmup and sending included
  • You want warmup and a sequencer in the $2.50 instead of Warmforge plus Salesforge
  • You want month-to-month billing without a 7-day cancellation window
  • You run 12 to 100 mailboxes and would rather not plan IP counts

Stay with Infraforge if

  • You need dedicated IPs for your mailboxes
  • You are invested in Salesforge as your sequencer

Outreach2day mailboxes send from its own campaigns or from your sequencer; the fields and settings per tool are in the integration docs.

Infraforge review: questions

How much does Infraforge cost?

$12 a mailbox slot a quarter ($4 a month) for the first 10 and the first 100 add-on slots, falling $0.30 a quarter per hundred to $9 above 1,000; yearly $40 down to $30 a slot. Minimum 10 slots. Domains are $14 a year and each extra dedicated IP $99 a month.

Does Infraforge have monthly billing?

No. Slots are billed quarterly or yearly.

How many mailboxes per IP does Infraforge recommend?

No more than 40 mailboxes per IP, 2 to 3 per domain and 30 cold emails per mailbox a day.

Does Infraforge include warmup?

No. Forge recommends Warmforge, a separate product that is free with Salesforge, or pre-warmed domains at $14 each.

Does Infraforge offer refunds?

No. No Forge product refunds, and cancelling needs a live-chat request at least seven days before the term ends.

What do 100 Infraforge mailboxes cost a month?

$400 on quarterly billing. With 34 .com domains ($39.67 a month) and Instantly Hypergrowth to send and warm them ($97) it is $536.67, before any extra IP. 100 Outreach2day mailboxes are $271.67 with domains, warmup and the sequencer.

Infraforge or Mailforge?

Infraforge puts mailboxes on dedicated IPs for $3 to $4 a month; Mailforge uses shared IPs for $2 to $3. [Mailforge vs Infraforge](/vs/mailforge-vs-infraforge) compares them line by line.

Deliverability call

Talk to our deliverability team

Book a call with the people who run our mailbox infrastructure. We look at your current setup and tell you what to change. Running 1,000+ mailboxes? We also quote a volume price below every vendor list price in our comparisons, warmup and sending included.

  • Review your domains, DNS records and current inbox placement
  • Size the setup: domains, mailboxes per domain and daily volume per mailbox
  • Plan warmup and the move from your current provider or sequencer
  • 1,000+ mailboxes: a volume price per mailbox for your setup

Free call

See open times in your time zone and book on this page.

Or open the booking page

More on Infraforge

Sources

Each vendor's own pages. Vendors change prices and plans; if something here is out of date, write to support@outreach2day.com and we will fix it.

Infraforge

Outreach2day

Full volume from day 14: 25 cold emails a mailbox a day

Add domains, create mailboxes and turn on warmup. You see every mailbox's warmup numbers from day one.

Book a call