Head to head

Aerosend vs Maildoso

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

Aerosend

$4/inbox/mo

Managed cold-email inboxes with warmup and placement tests. $4 per inbox, or $120/mo for 30. $2 each past 150.

Where Aerosend fits

  • Agencies that want deliverability managed for them
  • Teams starting at about 30 inboxes
  • Senders who will wait through a 21-day warmup
  • Shops that want burned domains replaced

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

DetailAerosendMaildoso
Starting price$4/inbox/mo$75/mo
Free tier–No–No
MCP server–No✓Yes
Public API–No✓Yes
Listed underDeliverabilityDeliverability

Where they pull apart

Aerosend

Stands out: Warmup, biweekly inbox placement tests, and burn replacement sit in the $4 inbox price.

Watch out: A 21-day warmup runs before you send. The one-month-free code is a promo, not a trial. Minimum displayed pack is 30 inboxes.

Not the right fit for

  • Buyers who need to send the same day they pay
  • Teams that want a free trial rather than a promo code

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

Aerosend

  • $4/inbox, $2 past 150
  • Warmup and placement tests included
  • Burned domains replaced free
  • 21-day warmup before sending
  • Default pack is 30 inboxes
  • Promo month is not a trial

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

Aerosend

$4/inbox/mo

$4 per inbox per month, $2 past 150 inboxes. 30 inboxes are $120/month. Warmup, placement tests, monitoring, DNS, and burn replacement included. Domains $12/year if bought through Aerosend. One-month-free promo on 30 inboxes is not a trial. 21-day warmup before sending. Confirm current terms on the vendor site.

Checked 19 Sep 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 19 Sep 2026

Common questions

Is Aerosend cheaper than Maildoso?
Aerosend starts lower, at $4/inbox/mo against $75/mo for Maildoso. That is the entry plan on each side, so the real number depends on seats and the tier you land on.
Can you try Aerosend or Maildoso for free?
Neither carries a free tier on our listing.
Does Aerosend or Maildoso have an MCP server?
Maildoso ships a first party MCP server, so an AI assistant can work the product directly.

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Editorial listings, never paid rankings. Prices checked 19 Sep 2026. Confirm current terms on the vendor site. Spot an error?