Infraforge alternatives: SMTP, dedicated IPs and Google or Microsoft mailboxes, priced in full

Infraforge puts SMTP mailboxes on dedicated IPs for $4 a month billed quarterly, with warmup and sending as separate products and no refunds. At 100 mailboxes with a sequencer and domains it comes to $536.67 a month; Outreach2day is $271.67 with warmup and its own sequencer. Here are the alternatives with the same facts for each. We make Outreach2day and list it first.

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

Infraforge and 7 alternatives side by side

Lowest published per-mailbox price, smallest order, mailbox types, warmup, API and MCP. Each cell links its source.

List prices from Outreach2day's pricing page, Mailforge's pricing page, Maildoso's pricing page, Zapmail's pricing page, InboxKit's pricing page, Mailpool's pricing page, Inframail's pricing page and Infraforge's pricing page, checked . Taxes and card fees excluded.

What 100 mailboxes cost a month with each option

Mailboxes, domains and the sequencer they need to send, at each vendor's list price.

100 mailboxes each. Infraforge and its alternatives at the same mailbox count. Monthly list prices on monthly billing; sending volume = mailboxes × each vendor's recommended emails per mailbox a day × 22 sending days, with the cheapest plan of the sequencer named in each row that covers it (Instantly unless the vendor's mailboxes need another; both include warmup). Domains at each vendor's published price spread over 12 months; "from" means a domain price is not published.

At the same 100 mailboxes, Infraforge with Instantly and domains is $536.67 a month before extra IPs. Maildoso ($338.25) and Mailforge with Salesforge (from $339.67) cost less on list price and send from shared infrastructure; Zapmail and InboxKit add Google or Microsoft accounts for $397 to $433. Outreach2day is $271.67 with warmup and its sequencer.

Each vendor is counted at its own recommended daily volume, so the per-1,000-emails line is the fair comparison: Infraforge and Mailforge at 30 a day, Maildoso at 15, InboxKit at 40, Zapmail and Outreach2day at 25.

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.

Why each one is a Infraforge alternative

  1. 01

    1. Outreach2day: mailboxes, warmup and a sequencer in one bill

    SMTP/IMAP mailboxes on your domains at $2.50 a month with warmup that keeps running and our own sequencer, billed monthly. They also export to Instantly, Smartlead or 14 tools by CSV, and our MCP server sets everything up from Claude or ChatGPT.

  2. 02

    2. Mailforge: the same Forge workflow on shared IPs

    Infraforge's sibling: the same dashboard, API and Forge MCP, SMTP slots on shared IPs at $3 down to $2 a month with monthly billing. Its mailboxes cannot be warmed in Instantly, so it pairs with Salesforge.

    Mailforge review

  3. 03

    3. Maildoso: SMTP packs at volume

    Packs of 30, 300 and 1,000 SMTP mailboxes down to $0.49 each, synced to Instantly, Smartlead and EmailBison, with an API and MCP server. Up to 15 cold emails per mailbox a day and no warmup.

    Maildoso review

  4. 04

    4. Zapmail: Google and Microsoft with warmup handled

    If you leave SMTP for Google or Microsoft: plans of 10, 30 and 100 at $39, $99 and $299 a month, warmup handled per its FAQ, pre-warmed plans and a 134-tool MCP server.

    Zapmail review

  5. 05

    5. InboxKit: Google or Microsoft one mailbox at a time

    No plan or minimum: $3 a mailbox a month, $2.50 annual, a REST API with webhooks and 24+ sequencer integrations. Warmup is a $3 add-on.

    InboxKit review

  6. 06

    6. Mailpool: dedicated IPs with unlimited inboxes

    Keeps the dedicated IP: $200 a month per IP with unlimited inboxes, next to SMTP inboxes from $3 and Google and Microsoft. The API is on request.

    Mailpool review

  7. 07

    7. Inframail: a flat rate for unlimited inboxes

    Unlimited Microsoft-backed inboxes on dedicated US IPs for $147 a month, warmup in your own tool.

    Inframail review

Infraforge itself

Read the full Infraforge review

Choosing

When the dedicated IP is the reason

If you chose Infraforge for IPs of your own, Mailpool and Inframail keep that model. If the IP was a means to better placement, compare placement on your own list before paying $99 a month per extra IP: Forge's own limit is 40 mailboxes per IP.

Details and sources are in the Infraforge review.

Leaving the Forge stack

Infraforge, Warmforge and Salesforge bill and cancel separately, each with a seven-day notice window. Moving the mailboxes to one bill is the usual reason buyers look at Outreach2day, and the Infraforge pricing post shows what each Forge line costs.

Outreach2day as a Infraforge alternative

We make Outreach2day and list it first. Where it fits and where it does not.

It 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 mailbox price
  • You want monthly billing from 12 mailboxes
  • You set up from an AI assistant: our MCP server covers domains, mailboxes, warmup and campaigns

It does not fit if

  • You need dedicated IPs
  • You need Google Workspace or Microsoft 365 accounts
  • You need fewer than 12 mailboxes

Infraforge alternatives: questions

What is the best Infraforge alternative?

For mailboxes, warmup and sending in one bill, Outreach2day. For the same Forge tools on shared IPs, Mailforge. For SMTP packs, Maildoso. For Google or Microsoft, Zapmail or InboxKit. For dedicated IPs, Mailpool or Inframail.

What do 100 Infraforge mailboxes cost compared with the alternatives?

Infraforge with Instantly and domains is $536.67 a month before extra IPs; Zapmail $432.83, Maildoso $338.25, Outreach2day $271.67 with warmup and its sequencer.

Which Infraforge alternatives bill monthly?

Outreach2day, Mailforge, Maildoso, Zapmail and InboxKit all have monthly billing; Infraforge bills quarterly or yearly.

Which alternatives have an MCP server?

Outreach2day, Mailforge (through the Forge server), Maildoso and Zapmail.

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.

Outreach2day

Mailforge

Maildoso

Zapmail

InboxKit

Mailpool

Inframail

Infraforge

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.

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