Infraforge vs Maildoso (2026): which should you pick?
As of Nov 12, 2026, Infraforge grades higher than Maildoso: 1.6 against 1.4 out of 4.0.
Checked Nov 12, 2026 · graded Nov 12, 2026 by ToolGPA
Infraforge grades higher on value for money. They get the same grade on the free plan, features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Which one is for you
Pick Infraforge if
- Fits if you send cold email at volume and want dedicated IPs
- Works for agencies managing many domains through an API
Look elsewhere if
- Skip it if you want a sending tool, because you still need one
- Pricey if you add an IP, at $99 a month each
- Watch out: slots are billed whether or not a mailbox is created in them
- Not for you if you want a trial: there isn't one
Pick Maildoso if
- Fits if you need 30 or more mailboxes for an outbound team
- Works for senders who already run Instantly or Smartlead
Look elsewhere if
- Skip it if you need just a few mailboxes, since 30 is the smallest block
- Not for you if you want a trial or a discount, because neither exists
- Watch out: domains cost extra, $15 a year or $11.90 a month pre-warmed
- Tight if you want volume per mailbox: 15 cold emails a day each
How we grade them
| 1.6GPAInfraforgeWeak | 1.4GPAMaildosoWeak | |
|---|---|---|
| Value for money | C$4 a slot a month on quarterly billing, with a 10-slot minimum, so $40 at the floor. That sits mid-category before domains and add-ons. | D$75 a month for 30 mailboxes is the smallest plan, which is where the category's dearest tenth begins. Domains aren't included. It is cheaper per mailbox as blocks grow. |
| Free plan and trial | FNo free plan and no trial. Each Forge product is a separate subscription. | FNo free plan and no trial on record. It also has a no-discount policy. |
| Features | DDomains, mailboxes, DKIM, SPF and DMARC, warm-up and rotation. But it only supplies the sending infrastructure and needs another product to send. | DMailboxes and DNS only. It is infrastructure and needs a separate sender, and each mailbox is capped at 15 cold emails a day. |
| Ease of use | CNo store rating on record. Automatic DNS setup, but you buy domains, build slots and connect a sender. | CNo store rating on record. Mailboxes come set up, but new ones need about 14 days of warm-up and a sender to connect. |
| Platforms and integrations | BWeb with an API, and a Forge family of Salesforge, Mailforge, Warmforge and Primeforge. | BWeb, exporting to Instantly, Smartlead, Saleshandy and EmailBizon. |
| Best for | dedicated-server mailboxes for cold email | blocks of cold-email mailboxes |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Infraforge and Maildoso. How we grade
Price against what you get
Infraforge starts at $4 a month and scores 2.0 out of 4 on features, ease of use and platforms. Maildoso starts at $75 a month and scores 2.0.
They score the same, and Infraforge starts $71 a month lower. Of the other cold outreach tools on the chart, none scores higher than Infraforge for less, and 30 score higher than Maildoso for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Infraforge also covers inbox warm-up.
At a glance
| Infraforge | Maildoso | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | $4 per mailbox slot / month, billed quarterly, with a 10-slot minimum | $75 per month for 30 mailboxes |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Infraforge | BacklinkSwappers, inc. |
| Price read from | infraforge.ai | maildoso.ai |
| Checked | Nov 12, 2026 | Nov 12, 2026 |
Worth knowing
Infraforge
- Slots are billed whether or not a mailbox is created in them, with a minimum of 10.
- Domains are bought separately; the calculator prices .com at $14 a year, charged once, with no annual discount on domains.
- Extra add-ons cost more: $99 a month per additional IP address, $2 per domain a month for SSL and domain masking, and $7 to $9 per workspace a month for Masterbox.
- There is no free trial, and each Forge product is a separate subscription.
Maildoso
- Each mailbox sends at most 15 cold emails and 80 warm-up emails a day, and new mailboxes still need about 14 days of warm-up unless they sit on pre-warmed domains.
- Domains are not included in monthly plans: registration is $15 a year and a pre-warmed domain is $11.90 a month.
- Quarterly plans with domains included are labeled legacy on the pricing page; the monthly blocks are the current plans.
- Subscriptions are canceled through support chat or email, and the page says it has a no-discount policy with no promotions.
Key features
Infraforge
- Dedicated servers and IPs
- Mailboxes send from dedicated servers, in contrast with Mailforge's shared IP pool; extra IP addresses can be added.
- Automated DNS setup
- DKIM, SPF and DMARC records are configured for each domain, with bulk DNS updates inside the app.
- Warm-up and monitoring
- The page lists automated warm-up, real-time deliverability monitoring and alerts, sender rotation and smart sending limits.
- API, MCP and CLI
- The Infraforge API is included with the subscription and can manage domains and mailboxes programmatically.
- Pre-warmed mailboxes
- Pre-warmed infrastructure is offered for sending right away.
- Workspaces and Masterbox
- Multiple workspaces, plus a Masterbox add-on that shows all emails across a workspace's accounts in one view.
Maildoso
- Mailboxes built for outbound
- Dedicated mailboxes on the vendor's own servers and IPs, with IP rotation and automatic replacement of IPs that stop working.
- Automatic DNS setup
- SPF, DKIM and DMARC records are configured when you register mailboxes under a domain bought or connected through the dashboard.
- Self-healing and health scores
- Burned-out mailboxes are disconnected from campaigns for 14 days, and inbox placement tests run every 3 days with a health score per mailbox.
- Sequencer export
- Mailboxes can be exported to outreach platforms; Instantly, Smartlead and EmailBizon sync with one click, and the vendor says 9 sequencers are supported.
- API and MCP server
- Register domains, create mailboxes and push them to a sequencer from code or from an AI assistant such as Claude.
- Pre-warmed domains
- Domains warmed in advance, each holding up to 50 mailboxes, so new mailboxes can start sending without the usual 14-day wait.
Plans
Infraforge
Mailbox slots$4
per mailbox slot / month, billed quarterly, 10-slot minimum
Slots are charged whether or not a mailbox is created. The calculator shows 25 slots at $100 a month billed quarterly, or $83 a month billed yearly.
Maildoso
30 mailboxes$75
per month for 30 mailboxes ($2.50 each)
Aimed at early-stage teams. Up to 15 cold emails a day per mailbox, plus the features every plan includes.
300 mailboxes$225
per month for 300 mailboxes ($0.75 each)
Aimed at expanding teams. Same features and 15-a-day limit per mailbox as the smaller block.
1,000 mailboxes$499
per month for 1,000 mailboxes ($0.49 each)
Aimed at large-scale campaigns. Same features and per-mailbox limit.
Ways to pay less
Infraforge
- Annual discount
Two months free on annual mailbox billing
The FAQ says annual billing for mailboxes gets 2 months free automatically; there is no discount on domains.
Maildoso
No public discounts listed.
Common questions
Which is cheaper, Infraforge or Maildoso?
As of Nov 12, 2026, Infraforge is cheaper to start with: $4 a month, against $75 a month for Maildoso. Infraforge starts at $4 per mailbox slot / month, billed quarterly, with a 10-slot minimum, and Maildoso starts at $75 per month for 30 mailboxes.
Which has a free plan, Infraforge or Maildoso?
As of Nov 12, 2026, neither Infraforge nor Maildoso has a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.