Mailforge vs Maildoso
Both are cold-email infrastructure tools that spin up domains, mailboxes, and DNS for your sender, not senders themselves. Mailforge is the cheap-to-scale shared-SMTP option; Maildoso adds real Google Workspace mailboxes and deliverability monitoring. Here is how they compare on quality, price, and setup.
By Kshitij Maheshwari, co-founder · Updated June 2026
Same job, a real-mailbox split
Both provision the domains and inboxes your cold-email tool sends from, with DNS configured for you. They split on mailbox type, monitoring, and price to scale.
Shared, distributed-SMTP mailboxes at the lowest per-inbox rate, built to stand up hundreds of inboxes fast. Part of the Salesforge family, with a dedicated-IP upgrade path through Infraforge. Domains from $14 a year, mailboxes around $3 a month.
A mix of shared SMTP and real Google Workspace mailboxes, with IP rotation, self-healing inboxes, and placement testing built into the price. From $75 a month for 30 mailboxes, dropping sharply at volume.
- ✓You are standing up hundreds of shared-SMTP inboxes on the tightest budget
- ✓You already run, or want, the Salesforge stack
- ✓You may need dedicated IPs later through Infraforge
- ✓You want real Google Workspace mailboxes, not just shared SMTP
- ✓You want deliverability monitoring baked in
- ✓You want one-click connection to Smartlead or Instantly
Short on time? We'll tell you which fits your sending plan.
What each tool actually is
Mailforge
A cold-email infrastructure tool from the Salesforge family that provisions domains, mailboxes, and DNS at the lowest per-inbox rate. It runs shared, distributed-SMTP mailboxes, configures SPF, DKIM, and DMARC automatically, and is built to stand up hundreds of inboxes in minutes. Best for teams scaling shared-SMTP volume cheaply, with Infraforge as the dedicated-IP upgrade path.
Visit MailforgeMaildoso
A cold-email infrastructure tool that offers both shared SMTP and real Google Workspace mailboxes, with automatic DNS, IP rotation, self-healing inboxes, and placement testing in the base price. Setup is fast for SMTP and a couple of hours for Google Workspace. Best for small-to-mid senders who want real-provider mailboxes and deliverability monitoring without bolt-ons.
Visit MaildosoMailforge vs Maildoso, side by side
The facts that decide it, verified from each tool's official site in June 2026.
| Dimension | Mailforge | Maildoso |
|---|---|---|
| Best for | Cheap shared-SMTP at scale | Real Google Workspace plus monitoring |
| Mailbox type | Shared, distributed SMTP only | Mixed SMTP and real Google Workspace |
| Real Google Workspace | No | Yes |
| Auto DNS (SPF, DKIM, DMARC) | Yes | Yes |
| Setup speed | About 5 minutes | SMTP about 5 minutes, Workspace about 2 hours |
| Per-mailbox price | About $2 to $3 a month | About $0.50 to $2.50 a month |
| Per-domain price | $14 a year | $12 a year |
| Deliverability tools | Heat-score monitoring | IP rotation, self-healing, placement tests |
| Dedicated IP | No, via sibling Infraforge | No, shared with rotation |
| Sender integration | Works with any sender | One-click Smartlead, Instantly |
Neither offers real Microsoft or Outlook mailboxes. Confirm the current plan on Mailforge and Maildoso before you buy.
What each one can and cannot do
A capability check, scored the same way for both tools.
| Capability | Mailforge | Maildoso |
|---|---|---|
| Bulk domain creation | ✓ | ✓ |
| Auto SPF, DKIM, DMARC | ✓ | ✓ |
| Shared-SMTP mailboxes | ✓ | ✓ |
| Real Google Workspace mailboxes | ✕ | ✓ |
| Real Microsoft / Outlook mailboxes | ✕ | ✕ |
| Dedicated IPs | Limited (via Infraforge) | ✕ |
| Native mailbox warmup | Limited (add-on) | Limited (add-on) |
| One-click connect to senders | Limited | ✓ (Smartlead, Instantly) |
| Deliverability / placement testing | Limited (heat score) | ✓ (every 3 days) |
| API access | ✓ | ✓ |
| Master dashboard | ✓ | ✓ |
| Domain portability / export | ✓ | ✓ |
"Limited" means available but not a core strength. Warmup is a paid add-on on both, through Warmforge for Mailforge or Maildoso's own warmup. Mailforge reaches dedicated IPs only through its sibling product Infraforge.
What real users say
Public review scores and the themes that come up most, checked June 2026. Counts drift, so the live links are the source of truth.
Mailforge
Praised for: fast, easy setup, responsive support at a low price, and consolidating fragmented tools.
Watch-outs: friction transferring or managing domains, cancellation and billing complaints, and occasional UI bugs.
Maildoso
Praised for: very fast setup, the real Google Workspace option, automated DNS, and stable infrastructure.
Watch-outs: support that can slow at peak, warmup sold as a paid add-on, and slower Google Workspace provisioning.
Why only G2 here. Both are newer infrastructure tools, and their other review samples are too thin to compare fairly: Mailforge's Capterra has a single review and its Trustpilot only a handful, while Maildoso has no meaningful Capterra or Trustpilot presence. G2 is the one platform with a real base for each, and Maildoso has materially more reviews there, so weigh the themes alongside the scores.
Where each one actually wins
Six things separate these tools in practice. Here is the honest call on each.
Mailbox type and quality
Edge: MaildosoMailforge runs shared SMTP only, while Maildoso also offers real Google Workspace mailboxes, which generally carry stronger inbox reputation after the 2024 and 2025 bulk-sender crackdowns. If mailbox quality is the priority, Maildoso's real-provider option is the clearer choice.
Deliverability posture
Edge: MaildosoMaildoso bundles IP rotation, self-healing inboxes that auto-pause when burned, and placement tests every few days into the base price. Mailforge gives heat-score monitoring but not automatic recovery, so Maildoso does more to protect reputation without extra setup.
Price to scale
Edge: MailforgeFor standing up hundreds or thousands of shared-SMTP inboxes, Mailforge's per-mailbox rate is the cheapest path, and the monitoring premium matters less when raw cost is the goal. At high inbox counts, Mailforge wins on pure economics.
Setup speed and ease
Edge: tieBoth stand up SMTP mailboxes in about five minutes. Maildoso's real Google Workspace path takes longer, around two hours, so for pure speed-to-launch on SMTP they are even, and Mailforge is always fast because it is SMTP only.
Dedicated IP and private infra
Edge: MailforgeNeither offers dedicated IPs in its core product, but Mailforge's family includes Infraforge for dedicated-IP private infrastructure within the same ecosystem and dashboard. If you expect to graduate to isolated reputation, Mailforge has the in-house upgrade path.
Integration with senders
Edge: MaildosoMaildoso advertises one-click connection to Smartlead, Instantly, and Saleshandy, plus CSV export for other sequencers. Mailforge is sender-agnostic and tightest with its own Salesforge stack, so for plugging straight into the major senders, Maildoso is a touch smoother.
Infrastructure up, pipeline still flat?
Inboxes are the foundation, not the campaign. We target and run the whole motion. Tell us yours.
What each one costs in 2026
Verified from each official pricing page in June 2026. Read the per-mailbox rate, not just the headline number.
Mailforge
USD- Domains
charged once per domain$14/yr - Mailboxes
per slot, annual, 10 minimum$3/mo each - Add-ons
SSL and domain masking optionalextra
No free trial, ready in about 5 minutes, annual billing adds two months free. Shared SMTP only. Dedicated IPs come through the sibling product Infraforge, and warmup through Warmforge, both paid separately.
Maildoso
USD / mailboxes- 30 mailboxes
about $2.50 each$75/mo - 300 mailboxes
about $0.85 each$255/mo - 1,000 mailboxes
about $0.50 each$499/mo
Domains are $12 a year. No free trial, but a 30-day money-back guarantee on monthly SMTP plans. Google Workspace provisioning takes about 2 hours, and AI warmup is a paid add-on.
True cost at scale. The per-mailbox sticker understates the real bill, because warmup is a paid add-on on both, through Warmforge or Maildoso's own warmup, and Mailforge's all-in cost climbs once you stack Warmforge or Infraforge. Both support domain transfer and export, so you are not fully locked in, but switching always means re-warming and re-authenticating. Price the whole setup, including warmup, not just the inbox.
What neither tool does well
Both are infrastructure, so they share the same blind spots. Worth knowing before you expect either to carry your whole motion.
Both provision inboxes and DNS, but neither sends sequences, manages replies, or runs campaigns. You still need Smartlead, Instantly, or another sender on top.
Warmup is an add-on or external on both, and fresh mailboxes still need two to four weeks of ramp before real volume. Infrastructure alone does not build reputation.
Neither offers real Microsoft or 365 mailboxes, so for an Outlook-heavy audience you will need a different provider for that side.
Want the right accounts found and timed on real signals once the inboxes are ready? That is the signal-based outbound we run. Need the sender that rides on this infrastructure? See our best cold email tools for 2026.
Our take, after running both
This comes down to mailbox quality versus cost to scale. Here is how we'd call it.
The lowest per-inbox rate and the Infraforge upgrade path fit a team standing up hundreds of inboxes, especially inside the Salesforge stack.
Real-provider mailboxes, self-healing, and placement testing in the base price fit a small-to-mid sender who wants quality without bolt-ons.
Inboxes and DNS get you ready to send. They do not pick the right accounts, warm themselves, or write the email. That part is on you, or on us.
Not sure which fits? We run signal-based outbound for early-stage teams and will tell you straight.
Book a Fit Check
Co-founder of Real Good GTM. He has been the first business hire and Chief of Staff at seed-stage B2B startups, building outbound pipeline before any playbook existed. This comparison comes from running these tools on live campaigns, not from a spec sheet.
Connect on LinkedInQuestions buyers ask
Is Mailforge or Maildoso better for cold email infrastructure?
What is the difference between shared SMTP and Google Workspace mailboxes?
Which is cheaper, Mailforge or Maildoso?
Do Mailforge or Maildoso send the emails?
Do these tools include mailbox warmup?
Can I get dedicated IPs from Mailforge or Maildoso?
Will good infrastructure fix my deliverability?
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Not sure which fits your motion?
Book a fit check. We'll look at your sending plan, your volume, and how you sell today, and tell you straight which setup actually fits.
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