Mission Inbox review: $199 for 30 mailboxes, then $3 each and $1 per 1,000 sends

Mission Inbox sells its own mailboxes on dedicated IPs for cold email, plugged into Instantly, Smartlead or Apollo, plus an API for product email. You pay a plan ($50 for 15 mailboxes, $199 for 30), $3 for each mailbox from 31 to 1,000, $1 for every 1,000 sends over the allowance, warmup emails included, and $2 a mailbox for its warmup. 2,500 cold emails a day come to $504 a month with Instantly before domains; Outreach2day sends them from 100 mailboxes for $171.67 with warmup, our sequencer and domains, and the mailbox is $0.50 from 1,000.

Price 100 mailboxes1,000+ mailboxes? Book a call
  • Warmup and sending included
  • $2.50 a mailbox, 12 minimum
  • Month-to-month billing

Monthly cost · 25,000 cold emails a day, sending included

  1. Mission Inbox + InstantlyMission Inbox + Instantly: from $3,858
  2. Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $1,422.67
  3. Outreach2day all-inOutreach2day all-in: $716.67
Price per mailbox
from $1.50 (Scale, mailboxes above 5,000; $3 from 31 to 1,000)
Outreach2day per mailbox
$2.50 month to month, $1.50 from 100, $0.50 from 1,000
Smallest order
Lite, $50 a month for 15 mailboxes and 5,000 sends
Mailbox types
SMTP
Warmup
MI Premium Warmup at $2 a mailbox a month, or your sequencer's warmup; warmup emails count as sends
MCP server
None found
Trustpilot
4.3 / 5 from 9 reviews

Every line item from 2,500 to 1,000,000 cold emails a day

Fit

Who Mission Inbox fits

Pick Mission Inbox if

  • You want dedicated sending infrastructure under Instantly, Smartlead or Apollo
  • You run an agency and want each client's sending kept apart
  • You also send product or transactional email through an API
  • You want checks on content and DNS before every send

Look elsewhere if

  • You want a flat price per mailbox with no charge per email
  • You want warmup and a sequencer in one subscription
  • You may need a refund of usage charges
  • You want published domain prices

Pros and cons

Mission Inbox pros and cons

From Mission Inbox's own pricing page, terms and help center. Each line links the page it comes from.

Pros

Cons

Compare

Mission Inbox compared

The same facts, set against other providers and against Outreach2day.

Overview

What Mission Inbox is

Mission Inbox Inc. is a Delaware company with two product lines: outbound infrastructure (mailboxes, dedicated IPs, MI Shield checks, Cubes to keep clients apart) and a developer API for transactional email. It says it is SOC 2 Type 2 compliant.

It is not a sequencer. Its FAQ says it does not build campaigns, manage contacts or write sequences; the mailboxes connect to Instantly, Smartlead, Apollo, EmailBison, PlusVibe, Outreach or Salesloft, and the campaigns stay there. Domains come from a marketplace in the app where aged domains are bought or leased; prices are behind the login.

MI Shield scans content, headers and DNS before a message leaves and blocks risky ones. Cubes give each client, brand or workload its own domains, mailboxes and routes.

Its own mailboxes on dedicated IPs for cold email, connected to your sequencer, plus an API for transactional email; billed per plan, per mailbox and per 1,000 sends source (opens the vendor's page in a new tab)

Mission Inbox Inc., a Delaware corporation; SOC 2 Type 2 source (opens the vendor's page in a new tab)

Pricing

Mission Inbox pricing

What Mission Inbox charges and what the price includes, next to Outreach2day. Each cell links the page it comes from.

  • Price per mailbox

    Mission Inbox
    Lite $50 for 15; Scale $199 for 30, then $3 a mailbox to 1,000, $2.25 to 3,000, $1.75 to 5,000, $1.50 above; plus $1 per 1,000 sends over 10,000 source (opens the vendor's page in a new tab)
    Outreach2day
    $2.50 a month up to 99 mailboxes, $1.50 from 100, $0.50 from 1,000; warmup, sequencer and analytics included at every tier details

  • Smallest order

    Mission Inbox
    Lite, $50 a month for 15 mailboxes and 5,000 sends source (opens the vendor's page in a new tab)
    Outreach2day
    12 mailboxes, $30 a month details

  • Domain cost

    Mission Inbox
    Not published; bought or leased in its domain marketplace source (opens the vendor's page in a new tab)
    Outreach2day
    $13 a year for a .com, $5 for a .info, registered to you; or connect your own for free details

  • Setup fees

    Mission Inbox
    None listed; warmup $2 a mailbox a month if you use theirs source (opens the vendor's page in a new tab)
    Outreach2day
    No setup or platform fee; a card fee of 2.9% + $0.30 at checkout on new domains and the first month details

  • Warmup

    Mission Inbox
    Partly, or at extra costMI Premium Warmup at $2 a mailbox a month, or your sequencer's warmup; warmup emails count as sends source (opens the vendor's page in a new tab)
    Outreach2day
    IncludedIncluded for the life of the mailbox, 75+ warmup emails a day details

  • Sequencer

    Mission Inbox
    Not a sequencer; connects to Instantly, Smartlead, Apollo, EmailBison, PlusVibe, Outreach and Salesloft source (opens the vendor's page in a new tab)
    Outreach2day
    IncludedIts own sequencer; syncs to Instantly and Smartlead, CSV export for 14 tools details

  • Export to other tools

    Mission Inbox
    IncludedInstantly, Smartlead, Apollo, EmailBison, PlusVibe, Outreach, Salesloft; SMTP for any other tool source (opens the vendor's page in a new tab)
    Outreach2day
    IncludedSyncs to Instantly and Smartlead by API key; CSV export in the import format of 14 tools, EmailBison among them; SMTP/IMAP logins for any other tool details

  • API and MCP

    Mission Inbox
    Partly, or at extra costREST API and SMTP with SDKs for Node.js, Python, Go, Java, PHP and Ruby. MCP: None found source (opens the vendor's page in a new tab)
    Outreach2day
    IncludedREST API on every account. MCP: Hosted MCP server: domains, mailboxes, warmup, campaigns, replies details

List prices from Mission Inbox's pricing page and Outreach2day's pricing page, checked . Taxes and card fees excluded.

Add-ons and extra costs

Three moving parts. A plan: Lite $50 a month with 15 mailboxes and 5,000 sends, where sending pauses at either limit until you upgrade, or Scale $199 with 30 mailboxes and 10,000 sends. Mailboxes past 30 on Scale: $3 each to 1,000, $2.25 to 3,000, $1.75 to 5,000 and $1.50 above, each rate on its own band. Sends past the allowance: $1 per 1,000, rounded up, with no volume discount.

Warmup emails count as sends, and Mission Inbox's own warmup is $2 a mailbox a month on top, included mailboxes too. Mailboxes are billed on the month's peak count, and usage is charged in arrears at renewal. No separate price is published for the dedicated IPs.

Outreach2day is one line: $2.50 a mailbox up to 99, $1.50 from 100 and $0.50 from 1,000, with warmup, its own sequencer and every email a mailbox sends in the price.

Full cost

What 2,500, 5,000 and 25,000 cold emails a day cost with Mission Inbox

The same emails a day on every row: Mission Inbox mailboxes at its own limit of 30 a day with the Instantly plan it needs to send and warm up, next to Outreach2day mailboxes (25 a day each) in Instantly and Outreach2day on its own.

2,500 a day · 55,000 a month84 Mission Inbox mailboxes at 30 a day, 100 of ours at 25 · USD a month
  1. Mission Inbox + InstantlyMission Inbox + Instantly: from $504
  2. Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $268.67
  3. Outreach2day all-inOutreach2day all-in: $171.67
5,000 a day · 110,000 a month167 Mission Inbox mailboxes at 30 a day, 200 of ours at 25 · USD a month
  1. Mission Inbox + InstantlyMission Inbox + Instantly: from $895
  2. Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $527.33
  3. Outreach2day all-inOutreach2day all-in: $343.33
25,000 a day · 550,000 a month834 Mission Inbox mailboxes at 30 a day, 1,000 of ours at 25 · USD a month
  1. Mission Inbox + InstantlyMission Inbox + Instantly: from $3,858
  2. Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $1,422.67
  3. Outreach2day all-inOutreach2day all-in: $716.67
  • Mission Inbox + Instantly

    Mission Inbox (dedicated IPs) mailboxes from $1.50 (Scale, mailboxes above 5,000; $3 from 31 to 1,000) · 30 cold emails a day each; Instantly for sending and warmup

    2,500 a day · 55,000 a month

    from $504a month

    at least $332.33 more than Outreach2day all-in

    from $9.16 per 1,000 emails · 84 mailboxesMailboxes alone: $407 a month

    5,000 a day · 110,000 a month

    from $895a month

    at least $551.67 more than Outreach2day all-in

    from $8.14 per 1,000 emails · 167 mailboxesMailboxes alone: $711 a month

    25,000 a day · 550,000 a month

    from $3,858a month

    at least $3,141.33 more than Outreach2day all-in

    from $7.01 per 1,000 emails · 834 mailboxesMailboxes alone: $3,152 a month

  • Outreach2day mailboxes + Instantly

    Keep Instantly, buy the mailboxes from us; 25 a day each

    2,500 a day · 55,000 a month

    $268.67a month

    $97 more than Outreach2day all-in

    $4.88 per 1,000 emails · 100 mailboxesMailboxes alone: $150 a month

    5,000 a day · 110,000 a month

    $527.33a month

    $184 more than Outreach2day all-in

    $4.79 per 1,000 emails · 200 mailboxesMailboxes alone: $300 a month

    25,000 a day · 550,000 a month

    $1,422.67a month

    $706 more than Outreach2day all-in

    $2.59 per 1,000 emails · 1,000 mailboxesMailboxes alone: $500 a month

  • Outreach2day all-in

    Mailboxes, warmup and our sequencer in one bill; 25 a day each

    2,500 a day · 55,000 a month

    $171.67a month

    $3.12 per 1,000 emails · 100 mailboxesMailboxes alone: $150 a month

    • 100 mailboxes at $1.50 (volume price from 100), warmup and sequencer included: $150
    • 20 domains at $13 a year: $21.67
    5,000 a day · 110,000 a month

    $343.33a month

    $3.12 per 1,000 emails · 200 mailboxesMailboxes alone: $300 a month

    • 200 mailboxes at $1.50 (volume price from 100), warmup and sequencer included: $300
    • 40 domains at $13 a year: $43.33
    25,000 a day · 550,000 a month

    $716.67a month

    $1.30 per 1,000 emails · 1,000 mailboxesMailboxes alone: $500 a month

    • 1,000 mailboxes at $0.50 (volume price from 1,000), warmup and sequencer included: $500
    • 200 domains at $13 a year: $216.67

Compared at the same emails a day, each vendor at its own published emails per mailbox a day: a cheap mailbox that sends 5 a day costs more per email than one that sends 25. Mailboxes = emails a day ÷ emails per mailbox a day (Mission Inbox: 30, its calculator's 660 emails per mailbox a month over 22 sending days; sends billed at $1 per 1,000 over 10,000, warmup sends left out; Outreach2day: 25). A month is 22 sending days, so emails a month = emails a day × 22. Monthly list prices on monthly billing; the Instantly plan is the cheapest one that covers the volume. Mission Inbox does not publish a domain price, so its domains (3 mailboxes each) are left out of the total, marked "from"; Outreach2day .com domains at $13 a year, 5 mailboxes per domain. Domains spread over 12 months. Outreach2day mailboxes on comparison pages: $2.50 a mailbox up to 99, $1.50 from 100, $0.50 from 1,000; larger volumes on the Enterprise plan. A mailbox-only vendor cannot send campaigns on its own, so its total is the full sending setup: its mailboxes, domains and the sequencer plan that covers the volume. Instantly is the reference sequencer, on its published plans for the emails and new contacts a month (emails ÷ 3); Smartlead where Instantly publishes no plan; Mailforge with Salesforge, because its mailboxes cannot be warmed in Instantly. The mailbox line is listed on its own in every cell.

Your saving · 25,000 a day

You save $3,141.33 a month ($37,696 a year)with Outreach2day at 25,000 cold emails a day, against Mission Inbox + Instantly at list prices

We move your mailboxes and campaigns for you, free

New · Outreach2day volume pricing

The mailbox price falls from 100 and again from 1,000 mailboxes

Warmup, the sequencer and the replies inbox included at every tier

  1. Up to 99 mailboxes$2.50a mailbox a month
  2. From 100 mailboxes$1.50a mailbox a month
  3. From 1,000 mailboxes$0.50a mailbox a month

Enterprise plan. Better prices for larger volumes.

Book a call

Mission Inbox publishes no daily number per mailbox; its calculator sizes 660 emails per mailbox a month, which the table reads as 30 a day over 22 sending days. 2,500 a day is 84 mailboxes: Scale $199, 54 mailboxes at $3 ($162) and 46,000 sends over the allowance ($46), plus Instantly Hypergrowth ($97) and domains from its marketplace: $504 a month before domains. 5,000 a day is $895 and 25,000 is $3,858.

The table counts cold emails only. Warmup emails from Instantly or Mission Inbox's own warmup also count as sends at $1 per 1,000, and its warmup adds $2 a mailbox, so the real bill is higher. Outreach2day is $171.67, $343.33 and $716.67 at the three volumes with warmup, our sequencer and domains, or $268.67, $527.33 and $1,422.67 with our mailboxes in Instantly.

What Mission Inbox does well

  • Dedicated IPs listed on every plan
  • MI Shield checks content and DNS before each send
  • Cubes to keep each client's sending apart
  • A REST API and SMTP with SDKs in six languages

Verdict

Mission Inbox suits teams that want their own sending layer under an existing sequencer, with checks before each send and clients kept apart. The price is built for usage: at 2,500 cold emails a day you pay the Scale plan, 54 extra mailboxes and 46,000 extra sends before any warmup emails.

Outreach2day mailboxes run on our own infrastructure and land in the inbox, with warmup and our sequencer in the price and no charge per email. All in, 2,500 a day is $171.67 a month against $504 before domains with Mission Inbox and Instantly; at 25,000 a day it is $716.67 against $3,858.

At scale

From 25,000 to 1,000,000 cold emails a day

The same setups at larger daily volumes. A vendor without a published price at a size reads “Custom pricing (not published)” and has no bar.

Running 25,000+ a day? Enterprise plan: better prices for larger volumes.Book a call

25,000 a day · 550,000 a month1,000 mailboxes · USD a month
  1. Mission Inbox + InstantlyMission Inbox + Instantly: from $3,858
  2. Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $1,422.67
  3. Outreach2day all-inOutreach2day all-in: $716.67
50,000 a day · 1,100,000 a month2,000 mailboxes · USD a month
  1. Mission Inbox + InstantlyMission Inbox + Instantly: from $7,015.75
  2. Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $2,748.33
  3. Outreach2day all-inOutreach2day all-in: $1,433.33
100,000 a day · 2,200,000 a month4,000 mailboxes · USD a month
  1. Mission Inbox + InstantlyMission Inbox + Instantly: from $13,004.50
  2. Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $5,486.67
  3. Outreach2day all-inOutreach2day all-in: $2,866.67
250,000 a day · 5,500,000 a month10,000 mailboxes · USD a month
  1. Outreach2day all-inOutreach2day all-in: $7,166.67
Mission Inbox + Instantly, Outreach2day mailboxes + Instantly: no published price at this volume, so no bar.
500,000 a day · 11,000,000 a month20,000 mailboxes · USD a month
  1. Outreach2day all-inOutreach2day all-in: $14,333.33
Mission Inbox + Instantly, Outreach2day mailboxes + Instantly: no published price at this volume, so no bar.
1,000,000 a day · 22,000,000 a month40,000 mailboxes · USD a month
  1. Outreach2day all-inOutreach2day all-in: $28,666.67
Mission Inbox + Instantly, Outreach2day mailboxes + Instantly: no published price at this volume, so no bar.
Monthly cost of Mission Inbox and Outreach2day setups from 25,000 to 1,000,000 cold emails a day
Setup25,000 a day550,000 a month1,000 mailboxes50,000 a day1,100,000 a month2,000 mailboxes100,000 a day2,200,000 a month4,000 mailboxes250,000 a day5,500,000 a month10,000 mailboxes500,000 a day11,000,000 a month20,000 mailboxes1,000,000 a day22,000,000 a month40,000 mailboxes
Mission Inbox + Instantlyfrom $3,858$3,141.33 morefrom $7,015.75$5,582.42 morefrom $13,004.50$10,137.83 moreCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)
Outreach2day mailboxes + Instantly$1,422.67$706 more$2,748.33$1,315 more$5,486.67$2,620 moreCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)
Outreach2day all-in$716.67$1,433.33$2,866.67$7,166.67$14,333.33$28,666.67

Mailboxes = emails a day ÷ emails per mailbox a day (Mission Inbox: 30; Outreach2day: 25). A month is 22 sending days, so emails a month = emails a day × 22. The Instantly plan is the published plan that covers the volume (its contacts and emails); where a vendor publishes no price at that size, the cell says so and the chart leaves it out. Domains at each vendor's published price spread over 12 months; Outreach2day .com domains at $13 a year, 5 mailboxes per domain, are in every total.

Every line at scale

  • Mission Inbox + Instantly, 25,000 a day: Scale $199 + 804 extra mailboxes $2,412 + 541,000 extra sends $541 ($3,152) source (opens the vendor's page in a new tab) + 278 domains, price not published (not published) + Instantly Hypergrowth + 7 Outbound add-ons (sequencer, warmup) ($706) = from $3,858
  • Mission Inbox + Instantly, 50,000 a day: Scale $199 + 1,637 extra mailboxes $4,410.75 + 1,091,000 extra sends $1,091 ($5,700.75) source (opens the vendor's page in a new tab) + 556 domains, price not published (not published) + Instantly Hypergrowth + 14 Outbound add-ons (sequencer, warmup) ($1,315) = from $7,015.75
  • Mission Inbox + Instantly, 100,000 a day: Scale $199 + 3,304 extra mailboxes $7,994.5 + 2,191,000 extra sends $2,191 ($10,384.50) source (opens the vendor's page in a new tab) + 1,112 domains, price not published (not published) + Instantly Hypergrowth + 29 Outbound add-ons (sequencer, warmup) ($2,620) = from $13,004.50
  • Outreach2day mailboxes + Instantly, 25,000 a day: 1,000 Outreach2day mailboxes at $0.50 (volume price from 1,000) ($500) + 200 domains at $13 a year ($216.67) + Instantly Hypergrowth + 7 Outbound add-ons (sequencer, warmup) ($706) = $1,422.67
  • Outreach2day mailboxes + Instantly, 50,000 a day: 2,000 Outreach2day mailboxes at $0.50 (volume price from 1,000) ($1,000) + 400 domains at $13 a year ($433.33) + Instantly Hypergrowth + 14 Outbound add-ons (sequencer, warmup) ($1,315) = $2,748.33
  • Outreach2day mailboxes + Instantly, 100,000 a day: 4,000 Outreach2day mailboxes at $0.50 (volume price from 1,000) ($2,000) + 800 domains at $13 a year ($866.67) + Instantly Hypergrowth + 29 Outbound add-ons (sequencer, warmup) ($2,620) = $5,486.67
  • Outreach2day all-in, 25,000 a day: 1,000 mailboxes at $0.50 (volume price from 1,000), warmup and sequencer included ($500) + 200 domains at $13 a year ($216.67) = $716.67
  • Outreach2day all-in, 50,000 a day: 2,000 mailboxes at $0.50 (volume price from 1,000), warmup and sequencer included ($1,000) + 400 domains at $13 a year ($433.33) = $1,433.33
  • Outreach2day all-in, 100,000 a day: 4,000 mailboxes at $0.50 (volume price from 1,000), warmup and sequencer included ($2,000) + 800 domains at $13 a year ($866.67) = $2,866.67
  • Outreach2day all-in, 250,000 a day: 10,000 mailboxes at $0.50 (volume price from 1,000), warmup and sequencer included ($5,000) + 2,000 domains at $13 a year ($2,166.67) = $7,166.67
  • Outreach2day all-in, 500,000 a day: 20,000 mailboxes at $0.50 (volume price from 1,000), warmup and sequencer included ($10,000) + 4,000 domains at $13 a year ($4,333.33) = $14,333.33
  • Outreach2day all-in, 1,000,000 a day: 40,000 mailboxes at $0.50 (volume price from 1,000), warmup and sequencer included ($20,000) + 8,000 domains at $13 a year ($8,666.67) = $28,666.67

Why each plan at scale

Your size

What 2,500 cold emails a day cost a month

121,000+
  • Mission Inbox + InstantlyMission Inbox + Instantlyfrom $504

    84 mailboxes × 30 a day = 2,500 cold emails a day

  • Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly$268.67

    100 mailboxes × 25 a day = 2,500 cold emails a day

  • Outreach2day all-inOutreach2day all-in$171.67

    100 mailboxes × 25 a day = 2,500 cold emails a day

You save $332.33 a month ($3,988 a year)with Outreach2day at 2,500 cold emails a day, against Mission Inbox + Instantly at list prices

We move your mailboxes and campaigns for you, free

Create 100 mailboxes

Switching

Moving from Mission Inbox to Outreach2day

  1. Keep your sequencer

    Connect Instantly or Smartlead in Outreach2day with an API key and the warm mailboxes are added to your account; other tools take a CSV in their import format, or SMTP/IMAP logins. How the export works

  2. Or move the campaigns

    Our sequencer runs campaigns with steps, a send schedule, stop on reply and one inbox for replies; import the contacts as a CSV and recreate the steps. The mailbox price stays $2.50.

  3. Warmup and the overlap

    New mailboxes warm for 14 days before cold email, and warmup keeps running after that. Keep the Mission Inbox mailboxes sending during those two weeks, then shift the volume and cancel Mission Inbox for the end of its billing period.

Mission Inbox renews every 30 days without proration and bills the month's peak mailbox count, so lower the count before a renewal date. Usage up to the end of the cycle is billed after you cancel.

Terms

Mission Inbox limits, setup and terms

Each line links to the vendor's page it comes from.

Smallest order

source (opens the vendor's page in a new tab)
Lite, $50 a month for 15 mailboxes and 5,000 sends

Setup time

source (opens the vendor's page in a new tab)
"10 min setup" with automatic DNS, per the home page

Mailbox types

source (opens the vendor's page in a new tab)
Its own mailboxes on dedicated IPs, connected by SMTP/IMAP or API; not Google Workspace or Microsoft 365

Domains

source (opens the vendor's page in a new tab)
A domain marketplace in the app (buy or lease aged domains); prices not published; 3 mailboxes per domain in its calculator

Sending limits

source (opens the vendor's page in a new tab)
No daily number per mailbox; its calculator sizes 660 emails per mailbox a month

Warmup

source (opens the vendor's page in a new tab)
Partly, or at extra cost MI Premium Warmup at $2 a mailbox a month, or your sequencer's warmup; warmup emails count as sends

Sequencers

source (opens the vendor's page in a new tab)
Not a sequencer; connects to Instantly, Smartlead, Apollo, EmailBison, PlusVibe, Outreach and Salesloft

API

source (opens the vendor's page in a new tab)
Included REST API and SMTP with SDKs for Node.js, Python, Go, Java, PHP and Ruby

MCP server

source (opens the vendor's page in a new tab)
Not included None found

Support

source (opens the vendor's page in a new tab)
Phone, email and a booked deliverability call

Refunds

source (opens the vendor's page in a new tab)
Plan fee refundable within 2 days of renewal; usage charges never

Trial

source (opens the vendor's page in a new tab)
Trials at its discretion, card required, converting to paid; a free demo account

Features

Other Mission Inbox features

MI Shield
Scans content, headers and DNS before each send and blocks risky messages source (opens the vendor's page in a new tab)
Cubes
Separate sending environments per client, brand or workload source (opens the vendor's page in a new tab)
IP wording
Marketing pages say dedicated IPs; its terms say it "operates shared IP infrastructure" and that one customer can hurt others on the same IP pool source (opens the vendor's page in a new tab)
Instantly
Instantly campaigns, leads and replies stay in Instantly; Mission Inbox is the sending layer under them source (opens the vendor's page in a new tab)
Chargebacks
A chargeback without its internal dispute process first means suspension, a permanent ban and collections source (opens the vendor's page in a new tab)

In detail

Mission Inbox pros and cons

Pros, from Mission Inbox's own pages: dedicated IPs on every plan; MI Shield checks before sending; Cubes per client; a REST API and SMTP with SDKs in six languages; integrations with the main sequencers and CRMs; phone support and a free deliverability call.

Cons: a bill that grows three ways (mailboxes, sends, warmup credits); warmup emails billed as sends; peak-count billing; usage charges never refunded; domain prices hidden behind the login; no MCP server; and no daily sending number per mailbox, only 660 a month in its calculator.

Dedicated or shared IPs

The home and pricing pages say every mailbox runs on dedicated IPs that are yours alone. Section 4.1 of its terms says Mission Inbox "operates shared IP infrastructure" and that a customer over the complaint limits hurts others on the same IP pool. Ask which one your account gets before you move volume.

The terms that matter

Plans renew every 30 days with no proration. The plan fee is refundable only within 2 calendar days of a renewal; mailbox, domain, send and credit charges are never refunded. Cancelling stops future renewals, and usage up to the end of the paid cycle is still billed.

Before a chargeback you must use its dispute process; a chargeback without it means suspension, a permanent ban and collections. Complaint rate above 1% or hard bounces above 4% can suspend the account.

Ratings

Mission Inbox ratings

Trustpilot read 2026-10-22.

Or us

Mission Inbox or Outreach2day

We sell cold email mailboxes too. Where our product fits this buyer and where it does not.

Mission Inbox

Stay with Mission Inbox if

  • You need fewer than 12 mailboxes: our minimum order is 12
  • You need transactional email through an API

Outreach2day

Outreach2day fits if

  • You run 100+ mailboxes: $1.50 a mailbox from 100 and $0.50 from 1,000, warmup and the sequencer included; larger volumes on the Enterprise plan
  • You want every email a mailbox sends in its price: $2.50 up to 99, $1.50 from 100, $0.50 from 1,000
  • You want warmup and our sequencer in that price
  • You keep Instantly or Smartlead: our mailboxes sync by API key, and EmailBison or 11 more tools take a CSV
  • You want a REST API and an MCP server for domains, mailboxes, warmup and campaigns
Price 100 mailboxes1,000+ mailboxes? Book a call

Outreach2day mailboxes send from its own campaigns or from your sequencer; the fields and settings per tool are in the integration docs.

FAQ

Mission Inbox review: questions

How much does Mission Inbox cost?

Lite is $50 a month for 15 mailboxes and 5,000 sends; Scale is $199 for 30 mailboxes and 10,000 sends, then $3 a mailbox to 1,000, $2.25 to 3,000, $1.75 to 5,000 and $1.50 above, plus $1 per 1,000 sends. Its warmup is $2 a mailbox a month.

What does the $1 per 1,000 emails cover?

Every send over the plan's allowance on Scale and Pro, rounded up to the next 1,000, with no volume discount. Warmup emails count as sends.

Does Mission Inbox charge for IPs?

Dedicated IPs are listed in every plan, and no separate IP price is published. Its calculator says final pricing depends on the dedicated IP allocation, and its terms describe shared IP infrastructure.

Is Mission Inbox a sequencer?

No, by its own FAQ. Campaigns, contacts and replies stay in Instantly, Smartlead, Apollo or another tool, and Mission Inbox is the sending layer under them.

Does Mission Inbox refund?

The plan fee within 2 calendar days of a renewal, for an account in good standing. Mailbox, domain, send and credit charges are never refunded.

Is Mission Inbox legit?

Mission Inbox Inc. is a Delaware corporation with public terms and billing policy and a SOC 2 Type 2 claim. Its Trustpilot page showed 4.3 out of 5 from 9 reviews on 2026-10-22.

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More on Mission Inbox

Deliverability call

Talk to our deliverability team

Book a call with the people who run our mailbox infrastructure. We look at your current setup and tell you what to change. Mailboxes are $1.50 from 100 and $0.50 from 1,000; for larger volumes we size an Enterprise plan with you.

  • Review your domains, DNS records and current inbox placement
  • Size the setup: domains, mailboxes per domain and daily volume per mailbox
  • Plan warmup and the move from your current provider or sequencer
  • Larger volumes: the Enterprise plan and its price for your setup

Free call

See open times in your time zone and book on this page.

Or open the booking page

Sources

Each vendor's own pages. Vendors change prices and plans; if something here is out of date, write to support@outreach2day.com and we will fix it.

Mission Inbox
Outreach2day

Full volume from day 14: 25 cold emails a mailbox a day

Add domains, create mailboxes and turn on warmup. You see every mailbox's warmup numbers from day one.

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Price 100 mailboxes