Mailin alternatives: mailboxes with warmup and sending included, and the inbox vendors next to Mailin

Mailin sells SMTP, Google and Microsoft accounts in monthly packs from $299 for 200, leaves warmup and sending to a sequencer you pay for, and refunds nothing after activation. Outreach2day is the alternative with mailboxes, warmup and a sequencer in one bill: $2.50 a mailbox, $1.50 from 100 and $0.50 from 1,000. We make Outreach2day and list it first; the other six follow with the same facts for each.

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

Full setup · 2,500 cold emails a day

USD a month
  1. Outreach2dayOutreach2day: $171.67
  2. InboxKitInboxKit: from $286
  3. MaildosoMaildoso: $348.25
  4. MailinMailin: from $396
  5. ZapmailZapmail: $432.83
  6. ScaledMailScaledMail: from $447
  7. MailforgeMailforge: $466.67
  8. Premium InboxesPremium Inboxes: from $681.50
Mailboxes, domains and the sequencer each one needs to send, at list prices. Line items and sources

Ranked

Why each one is a Mailin alternative

We make Outreach2day and list it first.

  1. 1. Outreach2day: mailboxes, warmup and the sequencer in one bill

    SMTP/IMAP mailboxes on your domains with what Mailin leaves out included: warmup for the life of the mailbox and a sequencer with steps, schedules, stats and a reply inbox. Bought one by one from 12, month to month, so 120 mailboxes bill as 120. Our mailboxes run on our own infrastructure and land in the inbox. Keep Instantly or Smartlead if you like: they sync by API key, and EmailBison takes our CSV.

    Per mailbox a month

    from $0.50

    1,000+ mailboxes

  2. 2. Maildoso: SMTP packs at 300 and 1,000

    The closest pack model to Mailin's SMTP plans: 30 mailboxes for $75, 300 for $225 and 1,000 for $499, with an API and an MCP server. It caps cold sends at 15 a mailbox a day, so the same volume takes more mailboxes, and warmup is an outside tool.

    Maildoso reviewMaildoso alternatives

    Per mailbox a month

    from $0.49

  3. 3. ScaledMail: managed SMTP, Google and Microsoft

    Like Mailin, all three mailbox types from one vendor, with the team doing setup and monitoring and adding the accounts to your sequencer. Google is $3.50 a mailbox, Outlook $50 a domain of 25 and SMTP $3.75 a domain of 4; domain prices are not published.

    ScaledMail reviewScaledMail alternatives

    Per mailbox a month

    from $0.94

    SMTP, $3.75 per domain of 4

  4. 4. Mailforge: shared-IP SMTP sold per slot

    SMTP slots from $3 a month, falling to $2 with volume, with no pack to fill and the Forge MCP server. Mailforge mailboxes cannot be warmed in Instantly, so warmup and sending run in Warmforge and Salesforge, two more subscriptions.

    Mailforge reviewMailforge alternatives

    Per mailbox a month

    from $2

    monthly, above 1,000 add-on slots

  5. 5. Zapmail: Google and Microsoft with warmup handled

    If you were weighing Mailin's Google tab: Zapmail sells Google Workspace or Microsoft 365 at $39 for 10, $99 for 30 and $299 for 100, says warmup is handled for you and documents an MCP server. No refunds either.

    Zapmail reviewZapmail alternatives

    Per mailbox a month

    from $2.99

    Pro, monthly

  6. 6. InboxKit: no minimum and webhooks

    Google or Microsoft from a single mailbox at $3 a month, paid from a wallet, with a REST API and webhooks next to Mailin's. Warmup is a $3 add-on and wallet top-ups are not refunded; Mailin's API can import InboxKit domains.

    InboxKit reviewInboxKit alternatives

    Per mailbox a month

    from $3

  7. 7. Premium Inboxes: Google and Microsoft built and uploaded for you

    A Google and Microsoft reseller at $3.50 an inbox under 250, $3.00 to 1,249 and $2.80 above, that uploads the inboxes to your sequencer. Warmup starts in the sequencer; no refunds.

    Premium Inboxes reviewPremium Inboxes alternatives

    Per mailbox a month

    from $2.80

    1,250+ inboxes

Side by side

Mailin and 7 alternatives side by side

Lowest published per-mailbox price, smallest order, mailbox types, warmup, API and MCP. Each cell links its source.

List prices from Outreach2day's pricing page, Maildoso's pricing page, ScaledMail's pricing page, Mailforge's pricing page, Zapmail's pricing page, InboxKit's pricing page, Premium Inboxes's pricing page and Mailin's pricing page, checked . Taxes and card fees excluded.

Cost

What 2,500 cold emails a day cost with each option

The same emails a day for every option: each vendor's mailboxes at its own sending limit, its domains and the sequencer they need, at list prices.

2,500 a day · 55,000 a monthMailboxes, domains and the sequencer · USD a month
  1. Outreach2dayOutreach2day: $171.67
  2. InboxKitInboxKit: from $286
  3. MaildosoMaildoso: $348.25
  4. MailinMailin: from $396
  5. ZapmailZapmail: $432.83
  6. ScaledMailScaledMail: from $447
  7. MailforgeMailforge: $466.67
  8. Premium InboxesPremium Inboxes: from $681.50
Per 1,000 cold emailsThe same total per 1,000 of the 55,000 emails a month · USD
  1. Outreach2dayOutreach2day: $3.12
  2. InboxKitInboxKit: from $5.20
  3. MaildosoMaildoso: $6.33
  4. MailinMailin: from $7.20
  5. ZapmailZapmail: $7.87
  6. ScaledMailScaledMail: from $8.13
  7. MailforgeMailforge: $8.48
  8. Premium InboxesPremium Inboxes: from $12.39
Outreach2day all-in100 mailboxes · 25 cold emails a day each, warmup and our sequencer included$171.67 a month$3.12 per 1,000 emails · 100 mailboxes for 2,500 emails a day
  • 100 mailboxes at $1.50 (volume price from 100), warmup and sequencer included: $150
  • 20 domains at $13 a year: $21.67
Maildoso + Instantly167 SMTP mailboxes · 15 cold emails a day each$348.25 a month$6.33 per 1,000 emails · 167 mailboxes for 2,500 emails a day
ScaledMail + Instantly100 Google Workspace mailboxes · 25 cold emails a day eachfrom $447 a monthfrom $8.13 per 1,000 emails · 100 mailboxes for 2,500 emails a day
Mailforge + Salesforge84 SMTP (shared IPs) mailboxes · 30 cold emails a day each$466.67 a month$8.48 per 1,000 emails · 84 mailboxes for 2,500 emails a day
Zapmail + Instantly100 Google or Microsoft mailboxes · 25 cold emails a day each$432.83 a month$7.87 per 1,000 emails · 100 mailboxes for 2,500 emails a day
InboxKit + Instantly63 Google or Microsoft mailboxes · 40 cold emails a day eachfrom $286 a monthfrom $5.20 per 1,000 emails · 63 mailboxes for 2,500 emails a day
Premium Inboxes + Instantly167 Google or Microsoft mailboxes · 15 cold emails a day eachfrom $681.50 a monthfrom $12.39 per 1,000 emails · 167 mailboxes for 2,500 emails a day
Mailin + Instantly100 SMTP mailboxes · 25 cold emails a day eachfrom $396 a monthfrom $7.20 per 1,000 emails · 100 mailboxes for 2,500 emails a day

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. Every option at 2,500 a day · 55,000 a month (22 sending days). Mailin and its alternatives at the same mailbox count. Mailboxes = emails a day ÷ each vendor's emails per mailbox a day; monthly list prices on monthly billing, with the cheapest plan of the sequencer named in each row that covers the volume (Instantly unless the vendor's mailboxes need another; both include warmup). Domains at each vendor's published price spread over 12 months; "from" means a domain price is not published. 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 · 2,500 a day

You save $224.33 a month ($2,692 a year)with Outreach2day at 2,500 cold emails a day, against Mailin + 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

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. Outreach2day all-inOutreach2day all-in: $716.67
  2. Maildoso + InstantlyMaildoso + Instantly: $1,965.25
  3. ScaledMail + InstantlyScaledMail + Instantly: from $4,206
  4. Mailforge + SalesforgeMailforge + Salesforge: $3,123.13
  5. Zapmail + InstantlyZapmail + Instantly: $4,066.83
  6. Premium Inboxes + InstantlyPremium Inboxes + Instantly: from $5,373.60
  7. Mailin + InstantlyMailin + Instantly: from $2,201
InboxKit + Instantly: no published price at this volume, so no bar.
50,000 a day · 1,100,000 a month2,000 mailboxes · USD a month
  1. Outreach2day all-inOutreach2day all-in: $1,433.33
  2. Maildoso + InstantlyMaildoso + Instantly: $3,708.25
  3. ScaledMail + InstantlyScaledMail + Instantly: from $8,315
  4. Mailforge + SalesforgeMailforge + Salesforge: $5,894.67
  5. Zapmail + InstantlyZapmail + Instantly: $8,036.58
  6. Premium Inboxes + InstantlyPremium Inboxes + Instantly: from $10,650.20
  7. Mailin + InstantlyMailin + Instantly: from $3,814
InboxKit + Instantly: no published price at this volume, so no bar.
100,000 a day · 2,200,000 a month4,000 mailboxes · USD a month
  1. Outreach2day all-inOutreach2day all-in: $2,866.67
  2. Maildoso + InstantlyMaildoso + Instantly: $7,155.50
  3. ScaledMail + InstantlyScaledMail + Instantly: from $16,620
  4. Zapmail + InstantlyZapmail + Instantly: $16,064.17
  5. Premium Inboxes + InstantlyPremium Inboxes + Instantly: from $21,287.60
  6. Mailin + InstantlyMailin + Instantly: from $7,119
Mailforge + Salesforge, InboxKit + Instantly: no published price at this volume, so no bar.
250,000 a day · 5,500,000 a month10,000 mailboxes · USD a month
  1. Outreach2day all-inOutreach2day all-in: $7,166.67
Maildoso + Instantly, ScaledMail + Instantly, Mailforge + Salesforge, Zapmail + Instantly, InboxKit + Instantly, Premium Inboxes + Instantly, Mailin + 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
Maildoso + Instantly, ScaledMail + Instantly, Mailforge + Salesforge, Zapmail + Instantly, InboxKit + Instantly, Premium Inboxes + Instantly, Mailin + 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
Maildoso + Instantly, ScaledMail + Instantly, Mailforge + Salesforge, Zapmail + Instantly, InboxKit + Instantly, Premium Inboxes + Instantly, Mailin + Instantly: no published price at this volume, so no bar.
Monthly cost of Mailin and its alternatives 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
Outreach2day all-in$716.67$1,433.33$2,866.67$7,166.67$14,333.33$28,666.67
Maildoso + Instantly$1,965.25$1,248.58 more$3,708.25$2,274.92 more$7,155.50$4,288.83 moreCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)
ScaledMail + Instantlyfrom $4,206$3,489.33 morefrom $8,315$6,881.67 morefrom $16,620$13,753.33 moreCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)
Mailforge + Salesforge$3,123.13$2,406.46 more$5,894.67$4,461.34 moreCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)Custom pricing (not published)
Zapmail + Instantly$4,066.83$3,350.16 more$8,036.58$6,603.25 more$16,064.17$13,197.50 moreCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)
InboxKit + InstantlyCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)Custom pricing (not published)Custom pricing (not published)Custom pricing (not published)
Premium Inboxes + Instantlyfrom $5,373.60$4,656.93 morefrom $10,650.20$9,216.87 morefrom $21,287.60$18,420.93 moreCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)
Mailin + Instantlyfrom $2,201$1,484.33 morefrom $3,814$2,380.67 morefrom $7,119$4,252.33 moreCustom pricing (not published)Custom pricing (not published)Custom pricing (not published)

Outreach2day: 25 cold emails per mailbox a day, 5 mailboxes per domain, .com domains at $13 a year (1,000 mailboxes and 200 domains at 25,000 a day; 40,000 and 8,000 at 1,000,000). Instantly and Smartlead with the accounts they sell, at the published plan for the volume; mailbox vendors at their own emails-per-mailbox limit with their domains and the Instantly (Mailforge: Salesforge) plan for the volume. A month is 22 sending days, so emails a month = emails a day × 22. Where a vendor publishes no price at that size the cell says so and the chart leaves it out. At this size the main table's flat $2.50 a Maildoso mailbox gives way to its published packs.

Every line at scale

  • 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
  • Maildoso + Instantly, 25,000 a day: 2 × 1,000 pack ($998) source (opens the vendor's page in a new tab) + 209 domains at $15 a year ($261.25) + Instantly Hypergrowth + 7 Outbound add-ons (sequencer, warmup) ($706) = $1,965.25
  • Maildoso + Instantly, 50,000 a day: 3 × 1,000 pack + 1 × 300 pack + 2 × 30 pack ($1,872) source (opens the vendor's page in a new tab) + 417 domains at $15 a year ($521.25) + Instantly Hypergrowth + 14 Outbound add-ons (sequencer, warmup) ($1,315) = $3,708.25
  • Maildoso + Instantly, 100,000 a day: 7 × 1,000 pack ($3,493) source (opens the vendor's page in a new tab) + 834 domains at $15 a year ($1,042.50) + Instantly Hypergrowth + 29 Outbound add-ons (sequencer, warmup) ($2,620) = $7,155.50
  • ScaledMail + Instantly, 25,000 a day: 1000 Google mailboxes at $3.50 ($3,500) source (opens the vendor's page in a new tab) + 334 domains, price not published (not published) + Instantly Hypergrowth + 7 Outbound add-ons (sequencer, warmup) ($706) = from $4,206
  • ScaledMail + Instantly, 50,000 a day: 2000 Google mailboxes at $3.50 ($7,000) source (opens the vendor's page in a new tab) + 667 domains, price not published (not published) + Instantly Hypergrowth + 14 Outbound add-ons (sequencer, warmup) ($1,315) = from $8,315
  • ScaledMail + Instantly, 100,000 a day: 4000 Google mailboxes at $3.50 ($14,000) source (opens the vendor's page in a new tab) + 1,334 domains, price not published (not published) + Instantly Hypergrowth + 29 Outbound add-ons (sequencer, warmup) ($2,620) = from $16,620
  • Mailforge + Salesforge, 25,000 a day: 834 slots (10 at $3, the rest at $2.20) ($1,842.80) source (opens the vendor's page in a new tab) + 278 domains at $14 a year ($324.33) + Salesforge Growth + 10 steps (sequencer, Warmforge warmup) ($956) = $3,123.13
  • Mailforge + Salesforge, 50,000 a day: 1667 slots (10 at $3, the rest at $2.00) ($3,344) source (opens the vendor's page in a new tab) + 556 domains at $14 a year ($648.67) + Salesforge Growth + 21 steps (sequencer, Warmforge warmup) ($1,902) = $5,894.67
  • Zapmail + Instantly, 25,000 a day: Pro + 900 extra mailboxes ($2,999) source (opens the vendor's page in a new tab) + 334 domains at $13 a year ($361.83) + Instantly Hypergrowth + 7 Outbound add-ons (sequencer, warmup) ($706) = $4,066.83
  • Zapmail + Instantly, 50,000 a day: Pro + 1900 extra mailboxes ($5,999) source (opens the vendor's page in a new tab) + 667 domains at $13 a year ($722.58) + Instantly Hypergrowth + 14 Outbound add-ons (sequencer, warmup) ($1,315) = $8,036.58
  • Zapmail + Instantly, 100,000 a day: Pro + 3900 extra mailboxes ($11,999) source (opens the vendor's page in a new tab) + 1,334 domains at $13 a year ($1,445.17) + Instantly Hypergrowth + 29 Outbound add-ons (sequencer, warmup) ($2,620) = $16,064.17
  • Premium Inboxes + Instantly, 25,000 a day: 1667 inboxes at $2.80 (Enterprise) ($4,667.60) source (opens the vendor's page in a new tab) + 556 domains, price not published (not published) + Instantly Hypergrowth + 7 Outbound add-ons (sequencer, warmup) ($706) = from $5,373.60
  • Premium Inboxes + Instantly, 50,000 a day: 3334 inboxes at $2.80 (Enterprise) ($9,335.20) source (opens the vendor's page in a new tab) + 1,112 domains, price not published (not published) + Instantly Hypergrowth + 14 Outbound add-ons (sequencer, warmup) ($1,315) = from $10,650.20
  • Premium Inboxes + Instantly, 100,000 a day: 6667 inboxes at $2.80 (Enterprise) ($18,667.60) source (opens the vendor's page in a new tab) + 2,223 domains, price not published (not published) + Instantly Hypergrowth + 29 Outbound add-ons (sequencer, warmup) ($2,620) = from $21,287.60
  • Mailin + Instantly, 25,000 a day: 1,000 SMTP accounts: 5 × Solopreneur ($299 for 200) ($1,495) source (opens the vendor's page in a new tab) + 200 domains, price not published (not published) + Instantly Hypergrowth + 7 Outbound add-ons (sequencer, warmup) ($706) = from $2,201
  • Mailin + Instantly, 50,000 a day: Enterprise ($1,499 for 1,000) + 1,000 accounts at $1 ($2,499) source (opens the vendor's page in a new tab) + 400 domains, price not published (not published) + Instantly Hypergrowth + 14 Outbound add-ons (sequencer, warmup) ($1,315) = from $3,814
  • Mailin + Instantly, 100,000 a day: Enterprise ($1,499 for 1,000) + 3,000 accounts at $1 ($4,499) source (opens the vendor's page in a new tab) + 800 domains, price not published (not published) + Instantly Hypergrowth + 29 Outbound add-ons (sequencer, warmup) ($2,620) = from $7,119

Why each plan at scale

At the same 2,500 cold emails a day, each vendor at its own emails per mailbox a day: Mailin publishes no SMTP limit, so it is counted at 25, the same as ours. 100 accounts bill as the $299 Solopreneur pack, and Instantly Hypergrowth adds $97 for sending and warmup: from $396 a month before domains, whose price Mailin does not publish.

Outreach2day sends the same 2,500 a day from 100 mailboxes for $171.67 with domains, warmup and the sequencer, or $268.67 if you keep Instantly and only buy the mailboxes from us. Every Mailin plan and term is in the Mailin review.

Your size

What 2,500 cold emails a day cost a month

121,000+
  • Mailin + InstantlyMailin + Instantlyfrom $396

    100 mailboxes × 25 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 $224.33 a month ($2,692 a year)with Outreach2day at 2,500 cold emails a day, against Mailin + Instantly at list prices

We move your mailboxes and campaigns for you, free

Create 100 mailboxes

Switching

Moving from Mailin 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 Mailin mailboxes sending during those two weeks, then shift the volume and cancel Mailin for the end of its billing period.

Mailin plans renew automatically and payments are final, so cancel before the next billing date once the new mailboxes are warm. Domains transferred into Mailin can be pointed at the new provider.

Mailin

Mailin itself

Price per mailbox

source (opens the vendor's page in a new tab)
from $1.50 in SMTP packs, $1 past 1,000; Microsoft $0.17 at 5 cold emails a day

Smallest order

source (opens the vendor's page in a new tab)
SMTP: 200 accounts for $299 a month; Google: 25 for $99

Setup time

source (opens the vendor's page in a new tab)
5-minute onboarding form, then 1-day delivery (Microsoft 2–3 days); DNS, SPF, DKIM and DMARC set automatically

Mailbox types

source (opens the vendor's page in a new tab)
SMTP on dedicated servers and IPs, Google Workspace and Microsoft 365, on separate price tabs

Sending limits

source (opens the vendor's page in a new tab)
Microsoft: up to 10 emails a mailbox a day, 5 cold and 5 warmup; not published for SMTP or Google

Warmup

source (opens the vendor's page in a new tab)
Recommended for 2–3 weeks in its FAQ; no warmup tool or price on the site

Sequencers

source (opens the vendor's page in a new tab)
No sequencer; API export to Instantly, Smartlead, ReachInbox and EmailBison, with fields for PlusVibe and MasterInbox

MCP server

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

Refunds

source (opens the vendor's page in a new tab)
All payments final and non-refundable; one exception, a 21-day deliverability guarantee with five conditions

Read the full Mailin review

Choosing

Why Mailin buyers look for an alternative

The reasons on Mailin's own pages: packs that bill 200, 500 or 1,000 accounts whatever you use, warmup and sending that need a second subscription, a terms page that makes every payment final, and no legal entity or address named anywhere on the site.

Price per account is rarely the problem: the SMTP packs work out at $1.50 an account and $1 past 1,000. Count the whole bill instead. At 25,000 cold emails a day 1,000 Mailin accounts plus Instantly are from $2,201 a month before domains; Outreach2day is $716.67 with domains, warmup and the sequencer included. The Outreach2day vs Mailin page sets the two side by side.

Moving off Mailin

Order the new mailboxes 14 days before you stop Mailin, so warmup finishes while the old accounts still send. On Outreach2day warmup is already running when the mailboxes appear, and each sends the full 25 cold emails a day from day 14.

If you keep Instantly or Smartlead, connect the new mailboxes by API key and pause the Mailin accounts campaign by campaign. Then cancel the Mailin plan in the account page before it renews.

Outreach2day

Outreach2day as a Mailin alternative

We make Outreach2day and list it first. Where it fits and where it does not.

It 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 one bill for mailboxes, warmup and the sequencer
  • You want to pay for the mailboxes you use, from 12, month to month
  • You want a REST API and an MCP server for setup and campaigns

It does not fit if

  • You want a free trial before you pay
  • You need LinkedIn or call steps in the same tool

FAQ

Mailin alternatives: questions

What is the best Mailin alternative?

Outreach2day if you want mailboxes with warmup and a sequencer in one subscription: $2.50 a mailbox, $1.50 from 100 and $0.50 from 1,000. Maildoso for SMTP packs of 300 or 1,000, ScaledMail for managed SMTP, Google and Microsoft, Mailforge for SMTP slots, Zapmail and InboxKit for Google and Microsoft accounts.

Which Mailin alternatives include warmup?

Outreach2day includes it for every mailbox for as long as you keep it, and Zapmail says it handles warmup. Maildoso, ScaledMail and Premium Inboxes leave it to your sequencer or an outside tool; InboxKit sells it as a $3 add-on and Mailforge as Warmforge.

Is there a Mailin alternative without packs?

Yes. Outreach2day, InboxKit and Mailforge bill per mailbox, so 120 mailboxes cost 120 mailboxes. Mailin, Maildoso and Zapmail sell fixed packs.

Is there a Mailin alternative with refunds?

Few vendors in this market refund. Outreach2day bills month to month with no yearly plan needed, so you can stop at the end of any month; Maildoso has a 30-day guarantee limited to outages it causes.

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

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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.

Outreach2day
Maildoso
ScaledMail
Mailforge
Zapmail
InboxKit
Premium Inboxes
Mailin

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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