Mailscale vs Mailforge: two ways to buy shared-IP SMTP inboxes

Both sell their own SMTP/IMAP inboxes on IPs shared between customers, export them to your sequencer and leave warmup to another product. Mailscale sells plans of 15, 50 and 200 inboxes with a 7-day trial; Mailforge sells slots from $3 down to $2 a month with the Forge MCP server. Neither refunds.

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

Mailscale

Mailforge

Price per mailbox
from $1.25 (Enterprise, $249 for 200); $5.27 on the 15-inbox planfrom $1.67 (yearly, 1,000+ slots); $3 monthly on small orders
Smallest order
Solopreneur, $79 a month for up to 15 inboxes, after a 7-day trial10 mailbox slots, $30 a month, plus domains
Mailbox types
SMTPSMTP
Warmup
Run in your sequencer (Instantly, Smartlead) for 2–3 weeks; not included in the self-serve plansNot in Mailforge; Warmforge is a separate Forge product, free with Salesforge; Mailforge mailboxes cannot be warmed in Instantly

Mailscale vs Mailforge, line by line

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

Mailscale and Mailforge prices

Mailscale

Mailforge

List prices from Mailscale's pricing page and Mailforge's pricing page, checked . Taxes and card fees excluded.

Cost at 15, 50 and 200 inboxes

15 inboxes: Mailscale Solopreneur is $79 a month. Mailforge is $45 (15 slots at $3; the 10 base slots stay at $3).

50 inboxes: Mailscale Business is $119 (or $149 on the second price table in its app). Mailforge is $150.

200 inboxes: Mailscale Enterprise is $249. Mailforge is $591 on monthly billing: 110 slots at $3 and 90 at $2.90. On yearly billing Mailscale is $199 a month and Mailforge falls to between $1.67 and $2.50 a slot.

Domains are extra on both: $10 to $15 a year at Mailscale, $14 at Mailforge, which also charges $2 a domain a month for SSL and domain masking. Add a sequencer and, at Mailforge, Warmforge for warmup.

Where they differ

Warmup and sending

Neither includes warmup in the inbox price. Mailscale's help center tells you to warm up for 2 to 3 weeks in Instantly or Smartlead. Mailforge points to Warmforge, a separate Forge subscription, and to Salesforge for sending.

Mailscale allows 30 campaign emails per inbox a day and up to 5 inboxes per domain. Mailforge recommends 30 a day (100 at most) and 2 to 3 mailboxes per domain, so it needs more domains for the same inbox count.

Trial, refunds, API

Mailscale's self-serve sign-up shows a 7-day free trial; Mailforge has none. Neither refunds: Mailscale's policy rules out refunds for any reason, and Forge asks you to cancel by chat 7 days before the term ends.

Mailforge runs on the shared Forge MCP server and API. Mailscale publishes no API and we found no MCP server. Details: Mailscale review, Mailforge review.

Which one to pick

Pick Mailscale if

  • You need 50 to 200 inboxes and want the lower plan price
  • You want 7 days to try before paying
  • You want up to 5 inboxes per domain

Pick Mailforge if

  • You need fewer than 30 inboxes
  • You want an API and MCP server for setup
  • You want slots you can delete and recreate inside the Forge products

Where Outreach2day fits

We sell cold email mailboxes too, so this section is ours. The comparison above does not rank us.

Both leave you paying for a sequencer and a warmup tool on top. Outreach2day mailboxes are SMTP/IMAP too, at $2.50 with warmup for the life of the mailbox and our own sequencer in that price: 15 mailboxes are $37.50, 50 are $125. Our REST API and MCP server cover domains, mailboxes, warmup and campaigns, and the mailboxes also sync to Instantly and Smartlead.

From 1,000 mailboxes Outreach2day quotes a volume price below the per-mailbox list price of every vendor in our comparisons, including Maildoso's $0.49, with warmup and sending in the price. Book a call and we quote your volume.

Outreach2day

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

Mailscale vs Mailforge: questions

What is the difference between Mailscale and Mailforge?

Both sell shared-IP SMTP inboxes. Mailscale sells plans of 15, 50 and 200 ($79, $119, $249 a month) with a 7-day trial; Mailforge sells slots from $3 down to $2 a month with an API and MCP server.

Which is cheaper, Mailscale or Mailforge?

Under about 26 inboxes Mailforge's $3 slots cost less than Mailscale's $79 plan. From 50 inboxes up Mailscale's plans cost less per inbox on monthly billing.

Do Mailscale or Mailforge include warmup?

No. Mailscale tells you to warm up in your sequencer; Mailforge sells warmup as Warmforge, a separate product.

Do Mailscale or Mailforge give refunds?

No. Mailscale's refund policy excludes refunds for any reason, and Forge products are not refunded either.

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 Mailscale and Mailforge

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.

Mailscale

Mailforge

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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