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Mailbox infrastructure comparison

Maildoso vs Mailforge: A Straight-Talk Review

A comparison of Maildoso and Mailforge on SMTP pricing, scale, feature set, and reliability, two providers both chasing the same cheap-mailbox market.

Aryan S
3 min readUpdated Mar 2026

Maildoso and Mailforge are independent third-party mailbox providers, neither is a Sendbox product. This comparison is based on each provider's publicly listed pricing and features.

The verdict

Both are shared-IP SMTP infrastructure providers charging similar rates. Maildoso edges ahead with a lower starting price ($1.90 vs $2.00), stronger G2 reviews (4.7 from 159), and a proven track record at 400,000+ mailboxes. Mailforge counters with domain masking and a tighter fit inside the Salesforge ecosystem.

For most teams shopping outside that ecosystem, Maildoso is the safer bet.

Scoreboard

Which provider has the edge on each of the 10 rows in the table below.

Maildoso6 edges
Mailforge3 edges
Even1 tie

A count of rows, not a weighted score, read the verdict for which differences matter most.

Feature comparison

Maildoso vs Mailforge, row by row

Maildoso vs Mailforge feature comparison
Price per MailboxPricing
$1.90-$2.50/mo Edge

SMTP starts at $1.90; the Combo tier runs $2-$3.

$2-$3/mo

SMTP mailboxes, all on shared IPs.

IP InfrastructureInfrastructure
Shared

Runs on shared IPs.

Shared

Also runs on shared IPs.

Scale Track RecordScale
400K+ mailboxes Edge

400K+ mailboxes managed, 10M+ emails sent daily.

10K+ businesses

10,000+ businesses on the platform.

G2 RatingSocial Proof
4.7 (159 reviews) Edge

Carries verified G2 reviews.

Not listed

No G2 rating on record.

DNS AutomationInfrastructure
Auto DNS

DNS configures automatically.

Auto DNS + bulk Edge

DNS automation plus bulk update tools.

Domain MaskingFeatures
Not specified

Not mentioned.

Yes Edge

Includes SSL and domain masking.

Domain TransferringFeatures
Not specified

Not mentioned.

Yes Edge

Supports bulk domain transfers.

API SupportAutomation
API + MCP Edge

Full API access plus MCP protocol support.

Not specified

API details aren't published.

Google Workspace OptionInfrastructure
Combo tier Edge

A Combo tier adds Google Workspace at $2-$3/mailbox.

No

SMTP only, no Google Workspace path.

Domain CostPricing
From $2/domain Edge

Domains start at $2.

Not specified

Domain pricing isn't listed separately.

On this page7
  1. 01Feature comparison
  2. 02Head-to-Head
  3. 03Ecosystem Fit
  4. 04Maildoso vs Mailforge: Which One Fits Your Use Case
  5. 05Pros & cons
  6. 06Using either with Sendbox
  7. 07FAQ

Head-to-Head

Maildoso and Mailforge go head-to-head in the same SMTP infrastructure niche, both offering shared-IP mailboxes with automated DNS at close to the same price. The real differences show up in the details. Maildoso starts a touch cheaper at $1.90 per mailbox against Mailforge's $2.00, and it adds a Combo tier with Google Workspace support at $2-$3 per mailbox.

Mailforge stays SMTP-only but throws in SSL/domain masking, bulk DNS updates, and domain transferring. On scale, Maildoso pulls ahead: 400,000-plus active mailboxes and 10 million-plus daily emails, against Mailforge's 10,000-plus businesses. Maildoso also holds the G2 advantage with a 4.7 rating from 159 verified reviews.

Key takeaways

  • Pricing is close: Maildoso from $1.90, Mailforge from $2.00
  • Maildoso layers in Google Workspace through its Combo tier
  • Mailforge adds domain masking and bulk DNS tooling
  • Maildoso has the stronger scale record and G2 reviews

Ecosystem Fit

Mailforge belongs to the Salesforge family, alongside Infraforge (dedicated IPs) and the Salesforge AI sales platform. If Salesforge is already your sending tool, Mailforge is the natural infrastructure pick given how tightly they integrate. Maildoso stays platform-agnostic instead, offering one-click integrations for Instantly, Smartlead, Saleshandy, and Sendbox.

Its API and MCP support also make it more flexible for teams building custom automation. For teams on Sendbox specifically, either provider works fine. It really comes down to whether Salesforge ecosystem integration matters more to you (Mailforge) or wider platform compatibility and a bigger scale track record does (Maildoso).

Key takeaways

  • Mailforge: best fit for teams already in the Salesforge ecosystem
  • Maildoso: best fit for platform-agnostic teams on Sendbox, Instantly, or Smartlead
  • Both connect into Sendbox for sending and campaign management

Maildoso vs Mailforge: Which One Fits Your Use Case

Maildoso is the right call for most teams, a lower starting price, a stronger scale record, better G2 reviews, API/MCP support, and a Google Workspace Combo option all tip things in its favor. Mailforge makes more sense if you're already inside the Salesforge ecosystem, or specifically need domain masking and bulk domain transferring. It also offers a clean upgrade path to Infraforge (dedicated IPs) once you outgrow shared infrastructure.

Whichever you pick, pairing it with Sendbox for AI warmup, deliverability monitoring, and campaign management rounds out the setup.

Key takeaways

  • Maildoso: the stronger fit for most teams on price, scale, reviews, and API
  • Mailforge: the stronger fit for Salesforge users and anyone needing domain masking
  • Either way, Sendbox rounds out the sending stack

Strengths and limitations

Pros & cons

Strengths6

  • Lower starting price at $1.90/mailbox/mo
  • 400K+ mailboxes under management, 10M+ emails daily
  • 4.7-star G2 rating from 159 verified reviews
  • A Google Workspace Combo option from $2-$3/mailbox
  • API and MCP support for automation
  • Domains priced from $2 each

Limitations4

  • Runs on shared IPs
  • No domain masking feature
  • No bulk domain transferring
  • No native deliverability tooling

Using either provider with Sendbox

Both connect to Sendbox, which handles AI warmup, deliverability monitoring, and campaign management on top of either provider's mailboxes. Switching over from Instantly, Smartlead, or EmailBison? Sendbox migrates all your campaigns and leads via API key.

  • Mailboxes can be provisioned right inside Sendbox, no manual setup, live in about 30 minutes
  • Every plan runs on dedicated IPs with isolated infrastructure
  • Plays nicely with any of the infrastructure providers above (InboxKit, Maildoso, Zapmail, Mailforge)
  • Migrating from Instantly, Smartlead, or EmailBison takes an API key, not a rebuild
  • A 350M+ lead database comes with the platform
  • Dialer, CRM, and AI reply tagging are built in rather than bolted on
  • Pricing is not per seat
faq

Got questions? We've got answers.

For most teams, yes. Maildoso is cheaper ($1.90 vs $2.00), carries stronger G2 reviews (4.7 from 159), manages more mailboxes (400K+), and offers a Google Workspace Combo option. Mailforge pulls ahead if you specifically need domain masking or you're already in the Salesforge ecosystem.

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