Compare/Head to head

Inframail vs Maildoso

Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.

Starting price

Inframail

$147/mo

Microsoft-backed cold email inboxes on a flat $147/mo unlimited plan. No per-mailbox fee.

Where Inframail fits

Agencies that want unlimited Microsoft inboxes
Teams tired of per-mailbox Google bills
Senders who will bring or buy domains
Shops connecting inboxes to Instantly or Smartlead

Maildoso

$75/mo

SMTP mailboxes for cold email, from $75/mo for 30 inboxes. API and MCP on every plan. 30-day money-back.

Where Maildoso fits

Agencies that want cheap SMTP at volume
Teams automating inbox setup through MCP
Senders who will buy or connect their own domains
Shops that need self-healing rotating IPs

At a glance

Detail	Inframail	Maildoso
Starting price	$147/mo	$75/mo
Free tier	–No	–No
MCP server	–No	✓Yes
Public API	–No	✓Yes
Listed under	Deliverability	Deliverability

Where they pull apart

Inframail

Stands out: Unlimited inboxes on your domains for a flat monthly fee, with SPF, DKIM, and DMARC set automatically.

Watch out: Microsoft-backed infrastructure, not Google Workspace. You still need a sequencer such as Instantly or Smartlead to send.

Not the right fit for

Buyers who need Google Workspace inboxes in the $147 plan
Teams that want a free trial before paying

Maildoso

Stands out: MCP at mcp.maildoso.com plus REST so assistants can register domains and create mailboxes.

Watch out: Monthly plans skip domains ($12/year each). Cap is 1,000 mailboxes. A 30-day money-back window is not a trial.

Not the right fit for

Buyers who need Google or Microsoft inboxes in the $75 pack
Senders who want a free trial rather than money-back

Pros and cons

Inframail

$147/mo unlimited Microsoft inboxes
Automated SPF, DKIM, and DMARC
No per-email sending fee

Core plan is Microsoft, not Google
No published free trial
You still pay for a sequencer

Maildoso

$75/mo for 30 SMTP mailboxes
MCP and REST API on every plan
30-day money-back guarantee

Domains extra on monthly plans
15 cold emails per mailbox per day
No free trial, only money-back

What each one costs

Inframail

$147/mo

Core Inframail plan is $147/month with unlimited Microsoft-backed inboxes and no per-email fee. Separate Google Workspace and Microsoft 365 lines are listed at $600/month with a $3 per-inbox rate. Done-for-you campaign setup is $3,497 once plus $499/month. Money-back is not a trial. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Maildoso

$75/mo

Monthly SMTP packs: 30 mailboxes $75/month ($2.50 each), 300 mailboxes $225/month ($0.75), 1,000 mailboxes $499/month ($0.49). API and MCP included. Domains $12/year on monthly plans ($15 from 1 Oct 2026). 15 cold emails per mailbox per day. 30-day money-back is not a trial. Legacy quarterly packs still listed. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Common questions

Is Inframail cheaper than Maildoso?

Maildoso starts lower, at $75/mo against $147/mo for Inframail. That is the entry plan on each side, so the real number depends on seats and the tier you land on.

Can you try Inframail or Maildoso for free?

Neither carries a free tier on our listing.

Does Inframail or Maildoso have an MCP server?

Maildoso ships a first party MCP server, so an AI assistant can work the product directly.

Not the pair you wanted?

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Editorial listings, never paid rankings. Prices checked 4 Nov 2026. Confirm current terms on the vendor site. Spot an error?