Head to head

Maildoso vs Mailreef

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

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

Mailreef

$240/mo

Dedicated cold-email servers with unlimited inboxes. Agency is $240/mo on a 12-month term, plus $0.001 per send.

Where Mailreef fits

  • Agencies sending 20k-plus cold emails a month
  • Teams that want a dedicated IP they control
  • Senders connecting to Smartlead or Instantly
  • Shops that will create hundreds of inboxes on one server

At a glance

DetailMaildosoMailreef
Starting price$75/mo$240/mo
Free tier–No–No
MCP server✓Yes–No
Public API✓Yes✓Yes
Listed underDeliverabilityDeliverability

Where they pull apart

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

Mailreef

Stands out: Your own mail server and IP, with unlimited free inboxes and developer API access on every plan.

Watch out: The $240 rate needs a 12-month commitment. Month-to-month Agency Flex is $249/mo. Both add $0.001 per send.

Not the right fit for

  • Solo senders who only need a handful of mailboxes
  • Buyers who refuse a 12-month term and a per-send fee

Pros and cons

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

Mailreef

  • Unlimited inboxes on a dedicated server
  • Developer API on every plan
  • Smartlead and Instantly included
  • $240/mo needs a 12-month term
  • $0.001 per send on top
  • No published free trial

What each one costs

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

Mailreef

$240/mo

Agency is $240/month on a 12-month commitment plus $0.001 per send. Agency Flex is $249/month month-to-month plus the same send fee. Enterprise is custom. Unlimited inboxes, dedicated server and IP, and developer API are included. No free trial. Confirm current terms on the vendor site.

Checked 19 Sep 2026

Common questions

Is Maildoso cheaper than Mailreef?
Maildoso starts lower, at $75/mo against $240/mo for Mailreef. That is the entry plan on each side, so the real number depends on seats and the tier you land on.
Can you try Maildoso or Mailreef for free?
Neither carries a free tier on our listing.
Does Maildoso or Mailreef 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?