Maildoso vs Mailpool
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
Still shortlisting? Browse the best in Cold Email Infrastructure for every option we track, with award winners called out.
The short answer
Both sides assessedMaildoso compared with Mailpool
Mailpool is an option for teams that want SMTP inboxes with no minimum, from $3 and $2.50 at a hundred, next to Google and Microsoft mailboxes in the same dashboard. Maildoso remains far cheaper for SMTP at scale, falling toward $0.49 a mailbox at a thousand.
Mailpool compared with Maildoso
Both sell SMTP mailboxes with automatic DNS. Maildoso is SMTP only, starts at $75 for thirty mailboxes, about $2.50 each, and falls to about $0.49 at a thousand, with IP rotation and self-healing monitoring. Mailpool's SMTP inboxes start at $3 with no minimum and $2.50 at a hundred, and sit next to Google and Microsoft options in the same account. High-volume SMTP senders should choose Maildoso; teams that want to mix SMTP with provider inboxes should choose Mailpool.
Choose Maildoso if
High-volume outbound teams and agencies that have already chosen a sending platform and want the lowest possible cost per authenticated mailbox, accept lower per-mailbox daily sending in exchange, and value automated placement testing, IP rotation, and an API over the prestige of real Workspace accounts.
Choose Mailpool if
Small outbound teams and agencies that want to mix Google, Microsoft, and cheaper SMTP inboxes under one account, buy them one at a time with no minimum, and handle domains, DNS, and sequencer export themselves without a sales call.
Side by side
13 attributes| Attribute | Maildoso | Mailpool |
|---|---|---|
| Category | Infrastructure | Infrastructure |
| Starting price | $75 per month for thirty mailboxes, about $2.50 each (free trial) | $3 per SMTP inbox per month, $4 per Google Workspace inbox, $5 per Microsoft 365 inbox, billed monthly; $2.60, $3.40, and $4.30 on annual billing (free trial) |
| Pricing model | Monthly mailbox packages with steeply falling unit cost by volume, plus separate domain registration at a flat annual rate; legacy quarterly bundles that include domains remain listed. | Per-inbox subscription by mailbox type, billed monthly or annually, with automatic volume discounts, a per-server price for a dedicated IP, and custom pricing for dedicated infrastructure. Domains are purchased separately. |
| Free plan | No | No |
| Free trial | None, but a thirty-day money-back guarantee applies to new users on monthly SMTP packages | None; the vendor suggests buying a single $3 inbox to evaluate the platform |
| Best for | High-volume outbound teams and agencies that have already chosen a sending platform and want the lowest possible cost per authenticated mailbox, accept lower per-mailbox daily sending in exchange, and value automated placement testing, IP rotation, and an API over the prestige of real Workspace accounts. | Small outbound teams and agencies that want to mix Google, Microsoft, and cheaper SMTP inboxes under one account, buy them one at a time with no minimum, and handle domains, DNS, and sequencer export themselves without a sales call. |
| Setup time | Under ten minutes for configuration: about five minutes to register a mailbox, up to fifteen for a new domain, and up to twenty-four hours for an existing domain. Real volume still waits on warm-up and ramping, so plan days to weeks rather than minutes before scaling. | The vendor says SMTP and Google inboxes can be created in seconds and a batch of SMTP accounts across domains in under five minutes, while Microsoft 365 inboxes are ready within a few hours. DNS propagation and warmup still need time before full volume. |
| Learning curve | Low for the tool, moderate for the operating discipline. The console and API are simple. What takes judgement is holding to about eight mailboxes per domain and fifteen sends a day each even though the platform will permit far more, and acting on the placement tests rather than filing them. | Low. Buying domains, creating inboxes, and exporting them are guided steps in the dashboard; choosing the right mix of mailbox types is the main decision. |
| Platforms | Web app, Bulk domain and mailbox provisioning console, REST API, MCP server | Web app, API, OAuth and CSV export to sequencers |
| Compliance | SPF, DKIM, and DMARC configured automatically on every provisioned domain, CAN-SPAM and GDPR sender obligations remain entirely yours, since Maildoso supplies infrastructure and never touches campaign content, Published daily sending guidance of about fifteen cold emails per mailbox, which is itself a compliance-relevant control | SPF, DKIM, and DMARC configured automatically, Operated by Snowlight Ventures OÜ under Estonian law; terms reference the GDPR, ePrivacy Directive, and CAN-SPAM as customer obligations, No compliance certifications published, The pricing comparison lists end-to-end encryption, automated backup, and SSO and SAML without specifying which plans include them |
| Founded | 2023 | 2024 |
| Headquarters | California, United States | Tallinn, Estonia |
| Ownership | Privately held, operated by BacklinkSwappers, Inc. | Privately held (Snowlight Ventures OÜ, trading as Mailpool) |
Strengths and limitations
Maildoso
Strengths
- The lowest published per-mailbox cost in this category by a wide margin, down to forty-nine cents at a thousand mailboxes.
- Operational tooling competitors mostly lack: self-healing mailboxes, IP rotation, per-mailbox reputation measurement, and automated placement tests every three days.
- Full API access plus an MCP server, included rather than gated to a top tier, which makes provisioning scriptable and assistant-driven.
- A thirty-day money-back guarantee, which is the only real evaluation safety net in a market where nobody offers free trials.
Limitations
- Not a sending platform, so it is always a second bill alongside a sequencer.
- About fifteen cold emails a day per mailbox is roughly half what real Workspace accounts sustain, so you buy far more mailboxes and the sticker-price advantage narrows at low volume.
- These are SMTP mailboxes on the vendor's own infrastructure, not genuine Google Workspace or Microsoft 365 accounts, and some recipient environments treat that difference as meaningful.
- The vendor describes a shared IP pool with rotation, so your sending reputation is influenced by other customers' behavior in a way that dedicated provider accounts avoid.
Mailpool
Strengths
- Google Workspace, Microsoft 365, and SMTP inboxes in one dashboard, with separate infrastructure for each.
- No minimum purchase: a single inbox can be bought for $3, month to month.
- Published per-inbox prices on both monthly and annual billing.
- AI domain generator, bulk domain purchase, and automated SPF, DKIM, DMARC, forwarding, and tracking domain setup.
Limitations
- Domain prices are not published.
- Google inbox pricing reflects a first-year discount and rises to an unpublished renewal rate after twelve months, according to the terms.
- No free trial and no refunds outside what consumer law requires.
- API documentation is only available on request.
Pricing compared
Maildoso
Monthly mailbox packages with steeply falling unit cost by volume, plus separate domain registration at a flat annual rate; legacy quarterly bundles that include domains remain listed.
- Thirty mailboxes$75
- Three hundred mailboxes$225
- One thousand mailboxes$499
- Domain registration$12
- Legacy quarterly bundlesFrom $299
Maildoso wins on unit cost and loses on throughput, so model both. At 10,000 emails a month, fifteen sends a day per mailbox implies roughly twenty-two to twenty-five mailboxes, which fits the $75 thirty-mailbox package plus a few domains: cheaper than provider-account infrastructure but not dramatically so, because you are buying nearly twice the mailbox count. At 100,000 a month you need on the order of 220 to 250 mailboxes, which fits comfortably inside the $225 three-hundred package, against roughly $330 to $675 a month for the same volume from Mailforge, Primeforge, or Zapmail. That is the honest shape of it: broadly comparable at low volume, decisively cheaper at high volume, with the open question being whether SMTP mailboxes place as well as real Workspace accounts for your specific recipient base.
Mailpool
Per-inbox subscription by mailbox type, billed monthly or annually, with automatic volume discounts, a per-server price for a dedicated IP, and custom pricing for dedicated infrastructure. Domains are purchased separately.
- Mailpool (SMTP)$3
- Google Workspace$4
- Microsoft 365 Outlook$5
- Dedicated IP$200
- Dedicated InfrastructureCustom
Mailpool's appeal is flexibility at a fair price rather than the lowest price. Google inboxes at $4 monthly or $3.40 annually sit in the same band as Cheap Inboxes, Premium Inboxes, and InboxKit, and Microsoft at $5 or $4.30 is in line with the market, while SMTP at $3 is more expensive than SMTP specialists such as Maildoso or Winnr, which fall well below $2 at volume. For 10,000 cold emails a month at around thirty sends a day per inbox, about fifteen Google inboxes cost $60 a month or $51 annually, before domains. What Mailpool gives you for that is a single account where all three mailbox types, a dedicated IP, workspaces, and an API live together, and the ability to buy one inbox at a time. The two gaps in the bill are real: domain prices are not published, and the terms say Google pricing moves to renewal rates after year one, so budget for a higher year-two cost on Google inboxes.
Editorial verdict on each
Maildoso
Best ValueMaildoso is the volume play in cold email infrastructure, and it is honest about the trade it is making. You get SMTP mailboxes on the vendor's own infrastructure rather than real Workspace accounts, with about fifteen cold sends a day each instead of thirty, and in exchange the unit cost falls to a level nobody else approaches. At a hundred thousand emails a month that difference is hundreds of dollars, and the operational tooling that comes with it, self-healing mailboxes, IP rotation, reputation measurement, three-day placement tests, a full API, and an MCP server, is better than what most competitors ship at four times the price. Two things should govern the decision. It is not a sequencer and never will be, so budget for two products. And the mailboxes are not provider accounts, so if your prospect base sits in enterprise Gmail and Outlook tenants where that provenance affects placement, test carefully during the thirty-day money-back window before committing at scale.
Read the full Maildoso profileMailpool
Mailpool is a sensible choice for a small team that does not want to pick one kind of mailbox. Google, Microsoft, and SMTP inboxes live in one dashboard, a single inbox can be bought for $3 with no bundle or minimum, and the domain generator, automatic DNS, deliverability audit, client workspaces, and API cover the rest of the setup without a sales call. Its prices are fair rather than the lowest: SMTP specialists undercut it on SMTP and InboxKit undercuts it on Google at annual rates. The bigger caution is what is missing from the price list. Domain prices are not published, the terms say Google inboxes move to an unpublished renewal rate after the first year, the API documentation is on request, and some pricing details differ between pages. Teams that want flexibility and to start small should try it with a few inboxes; teams buying hundreds of Google seats should compare the year-two cost first.
Read the full Mailpool profileMaildoso profile last reviewed 2026-08-22; Mailpool last reviewed 2026-09-26. Pricing is compiled from public sources and can change without notice. See our methodology.
The best in Cold Email Infrastructure
15 trackedCold email infrastructure providers supply the sending layer underneath an outbound campaign: they register secondary domains, provision Google Workspace, Microsoft 365, or private mailboxes in bulk, write the SPF, DKIM, and DMARC records automatically, and hand the credentials to whichever sequencer you already use.
Official Google, Microsoft, and Azure mailboxes at the lowest published price in the category, with automated DNS, InfraGuard monitoring, and more than twenty sequencer integrations behind them.
Ten minutes of setup, mailboxes live inside two hours with SPF, DKIM, and DMARC already written, and a one-click push into the sequencer, with no sales call at any tier.
Pre-warmed Google and Microsoft mailboxes and a reported one million inboxes across 50,000 businesses by 2026 make Zapmail the category's fastest riser.
Bulk domain and mailbox provisioning with the DNS done automatically collapsed a week of deliverability setup into a checkout flow, and defined how this category now works.
Mailboxes from forty-nine cents with placement testing, IP rotation, an API, and an MCP server included rather than gated, the strongest capability-per-dollar in the category.
Frequently asked questions
6 questionsWhat is the difference between Maildoso and Mailpool?
Mailpool is an option for teams that want SMTP inboxes with no minimum, from $3 and $2.50 at a hundred, next to Google and Microsoft mailboxes in the same dashboard. Maildoso remains far cheaper for SMTP at scale, falling toward $0.49 a mailbox at a thousand.
Is Maildoso or Mailpool cheaper?
Maildoso starts at $75 per month for thirty mailboxes, about $2.50 each (free trial). Mailpool starts at $3 per SMTP inbox per month, $4 per Google Workspace inbox, $5 per Microsoft 365 inbox, billed monthly; $2.60, $3.40, and $4.30 on annual billing (free trial). The billing models differ, so the entry price is rarely the whole cost. Maildoso pricing model: Monthly mailbox packages with steeply falling unit cost by volume, plus separate domain registration at a flat annual rate; legacy quarterly bundles that include domains remain listed. Mailpool pricing model: Per-inbox subscription by mailbox type, billed monthly or annually, with automatic volume discounts, a per-server price for a dedicated IP, and custom pricing for dedicated infrastructure. Domains are purchased separately.
Does Maildoso or Mailpool have a free plan?
Maildoso has no free plan. Trial terms: None, but a thirty-day money-back guarantee applies to new users on monthly SMTP packages. Mailpool has no free plan. Trial terms: None; the vendor suggests buying a single $3 inbox to evaluate the platform.
Who should choose Maildoso?
High-volume outbound teams and agencies that have already chosen a sending platform and want the lowest possible cost per authenticated mailbox, accept lower per-mailbox daily sending in exchange, and value automated placement testing, IP rotation, and an API over the prestige of real Workspace accounts.
Who should choose Mailpool?
Small outbound teams and agencies that want to mix Google, Microsoft, and cheaper SMTP inboxes under one account, buy them one at a time with no minimum, and handle domains, DNS, and sequencer export themselves without a sales call.
What are the best alternatives to Maildoso and Mailpool?
SaaSTracker profiles 15 products in Cold Email Infrastructure. The Summer 2026 awards in the category went to InboxKit (Category Leader), InboxKit (Ease of Use), Zapmail (Momentum). Every profile is compiled from primary sources, so a shortlist can be built from pricing, limitations, and fit rather than from star ratings.
