Compare/Alternatives

Mailforge alternatives

4 tools our write-ups put next to Mailforge, with starting price, free tier, MCP and API side by side.

Mailforge from $3/mailbox/mo

Closest alternatives

See the Mailforge listing

The short answer

  • Infraforge : Private dedicated IPs from $4 per slot when you want isolation. From $4/mailbox/mo
  • Maildoso : Cheaper SMTP packs from $75/mo for 30 mailboxes. From $75/mo
  • Primeforge : Real Google and Microsoft mailboxes in the same Forge family. From $4.50/mailbox/mo
  • Mailreef : Dedicated server plus unlimited inboxes on a flat monthly fee. From $240/mo

Why people look past Mailforge

Minimum 10 mailbox slots. No free trial. You pay for slots even if some sit empty. Separate from Infraforge and Primeforge.

What we noted

  • 10 mailbox slot minimum
  • No free trial
  • Empty slots still bill

Not the right fit for

  • Buyers who need fewer than 10 mailboxes
  • Teams that want a free trial before buying domains

Worth keeping in mind: Automated SPF, DKIM, and DMARC plus mailbox slots you can delete and recreate at no extra cost.

Mailforge alternatives compared

ToolFree tierFromMCPAPIHead to head
Mailforge (the one you are on) –No$3/mailbox/mo–No–No
Infraforge Private dedicated IPs from $4 per slot when you want isolation. –No$4/mailbox/mo–No✓YesHead to head
Maildoso Cheaper SMTP packs from $75/mo for 30 mailboxes. –No$75/mo✓Yes✓YesHead to head
Primeforge Real Google and Microsoft mailboxes in the same Forge family. –No$4.50/mailbox/mo–No✓YesHead to head
Mailreef Dedicated server plus unlimited inboxes on a flat monthly fee. –No$240/mo–No✓YesHead to head

What each one does differently

Infraforge

$4/mailbox/mo API

Why it comes up: Private dedicated IPs from $4 per slot when you want isolation.

Stands out: Dedicated servers plus a public REST API at api.infraforge.ai for domains, mailboxes, and sequencer export.

Watch out: Minimum 10 slots. Extra IPs are $99 per month billed quarterly. No free trial. Separate from Mailforge.

Best for

  • Agencies that want private IPs they control
  • Teams automating mailbox setup through the API
  • Senders who follow strict deliverability rules

Read the Infraforge write-up Mailforge vs Infraforge

Maildoso

$75/mo MCP API

Why it comes up: Cheaper SMTP packs from $75/mo for 30 mailboxes.

Stands out: MCP at mcp.maildoso.com plus REST so assistants can register domains and create mailboxes.

Watch out: Monthly plans skip domains ($12/year each). Cap is 1,000 mailboxes. A 30-day money-back window is not a trial.

Best for

  • Agencies that want cheap SMTP at volume
  • Teams automating inbox setup through MCP
  • Senders who will buy or connect their own domains

Read the Maildoso write-up Mailforge vs Maildoso

Primeforge

$4.50/mailbox/mo API

Why it comes up: Real Google and Microsoft mailboxes in the same Forge family.

Stands out: US-IP Google and Microsoft mailboxes so you can match the ESP your prospects use.

Watch out: Minimum 10 mailbox slots. No free trial. Yearly billing is the $4.50 rate; monthly is higher.

Best for

  • Teams that want real Google or Microsoft inboxes
  • Senders using ESP matching for inbox placement
  • Shops automating setup through the Primeforge API

Read the Primeforge write-up Mailforge vs Primeforge

Mailreef

$240/mo API

Why it comes up: Dedicated server plus unlimited inboxes on a flat monthly fee.

Stands out: Your own mail server and IP, with unlimited free inboxes and developer API access on every plan.

Watch out: The $240 rate needs a 12-month commitment. Month-to-month Agency Flex is $249/mo. Both add $0.001 per send.

Best for

  • Agencies sending 20k-plus cold emails a month
  • Teams that want a dedicated IP they control
  • Senders connecting to Smartlead or Instantly

Read the Mailreef write-up Mailforge vs Mailreef

Common questions

What is the best Mailforge alternative?
It depends on what sent you looking. Our write-ups put Infraforge closest to Mailforge. Why it comes up: Private dedicated IPs from $4 per slot when you want isolation. The table above shows all 4 on price, free tier, MCP and API.
What is the cheapest Mailforge alternative?
Of the published starting prices here, Infraforge is lowest at $4/mailbox/mo. Starting price is the entry plan, not the seat count you will end up on, so read the plan table on each listing.
Which Mailforge alternatives have an MCP server?
Maildoso ships a first party MCP server, so you can drive it from Claude or ChatGPT without building against the API yourself.

Keep looking

Back to the Mailforge write-up Every Deliverability tool we list Search the whole directory

Editorial listings, never paid rankings. Prices checked 19 Sep 2026. Confirm current terms on the vendor site. Spot an error?