Outreach2day vs Mailin: mailboxes with warmup and sending in one bill, or inbox packs plus a sequencer
Mailin sells SMTP, Google and Microsoft accounts in monthly packs (200 SMTP accounts for $299) and leaves warmup and sending to a sequencer you buy. Outreach2day sells mailboxes one by one from 12 with warmup and our own sequencer included: $2.50 a mailbox, $1.50 from 100 and $0.50 from 1,000. All in, Outreach2day costs less at 2,500, 25,000 and 100,000 cold emails a day.
- Warmup and sending included
- $2.50 a mailbox, 12 minimum
- Month-to-month billing
Full setup at 2,500 cold emails a day · USD a month
- Mailin + InstantlyMailin + Instantly: $396
- Ours + InstantlyOurs + Instantly: $268.67
- Outreach2day all-inOutreach2day all-in: $171.67
Outreach2day
Mailin
- Price per mailbox
- from $0.50 (1,000+ mailboxes); $2.50 up to 99, $1.50 from 100, warmup and sequencer includedfrom $1.50 in SMTP packs, $1 past 1,000; Microsoft $0.17 at 5 cold emails a day
- Smallest order
- 12 mailboxes, $30 a monthSMTP: 200 accounts for $299 a month; Google: 25 for $99
- Mailbox types
- SMTPGoogle, Microsoft, SMTP
- Warmup
- Included for the life of the mailbox, 75+ warmup emails a dayRecommended for 2–3 weeks in its FAQ; no warmup tool or price on the site
Side by side
Outreach2day vs Mailin, line by line
Each cell links to the vendor's page it comes from.
| Feature | Outreach2day | Mailin |
|---|---|---|
| Smallest order | 12 mailboxes, $30 a monthsource | SMTP: 200 accounts for $299 a month; Google: 25 for $99source (opens the vendor's page in a new tab) |
| Setup time | Mailboxes ready within 24 hours; 14 days of warmup before cold emailsource | 5-minute onboarding form, then 1-day delivery (Microsoft 2–3 days); DNS, SPF, DKIM and DMARC set automaticallysource (opens the vendor's page in a new tab) |
| Mailbox types | SMTP/IMAP on your domains (no Google Workspace or Microsoft 365 seats)source | SMTP on dedicated servers and IPs, Google Workspace and Microsoft 365, on separate price tabssource (opens the vendor's page in a new tab) |
| Domains | Bought in the app and registered to you, or bring your ownsource | Bought through Mailin or transferred in at no extra cost; 2–5 inboxes per domain on SMTP and Google, 100 on Microsoftsource (opens the vendor's page in a new tab) |
| Sending limits | Up to 25 cold emails per mailbox a day, 5 mailboxes per domainsource | Microsoft: up to 10 emails a mailbox a day, 5 cold and 5 warmup; not published for SMTP or Googlesource (opens the vendor's page in a new tab) |
| Warmup | IncludedIncluded for the life of the mailbox, 75+ warmup emails a daysource | Recommended for 2–3 weeks in its FAQ; no warmup tool or price on the sitesource (opens the vendor's page in a new tab) |
| Sequencers | Its own sequencer; syncs to Instantly and Smartlead, CSV export for 14 toolssource | No sequencer; API export to Instantly, Smartlead, ReachInbox and EmailBison, with fields for PlusVibe and MasterInboxsource (opens the vendor's page in a new tab) |
| API | IncludedREST API on every accountsource | IncludedPublic REST API with a bearer token: domains, mailboxes, servers, exports, verifiersource (opens the vendor's page in a new tab) |
| MCP server | IncludedHosted MCP server: domains, mailboxes, warmup, campaigns, repliessource | Not includedNone foundsource (opens the vendor's page in a new tab) |
| Support | In-app chat and emailsource | 24/7 Slack access to a team of 8 to 10 (technical, deliverability, GTM)source (opens the vendor's page in a new tab) |
| Refunds | Month to month, cancel any timesource | All payments final and non-refundable; one exception, a 21-day deliverability guarantee with five conditionssource (opens the vendor's page in a new tab) |
| Trial | No free trialsource | No free trial on the sitesource (opens the vendor's page in a new tab) |
Smallest order
- Outreach2day
- 12 mailboxes, $30 a monthsource
- Mailin
- SMTP: 200 accounts for $299 a month; Google: 25 for $99source (opens the vendor's page in a new tab)
Setup time
- Outreach2day
- Mailboxes ready within 24 hours; 14 days of warmup before cold emailsource
- Mailin
- 5-minute onboarding form, then 1-day delivery (Microsoft 2–3 days); DNS, SPF, DKIM and DMARC set automaticallysource (opens the vendor's page in a new tab)
Mailbox types
- Outreach2day
- SMTP/IMAP on your domains (no Google Workspace or Microsoft 365 seats)source
- Mailin
- SMTP on dedicated servers and IPs, Google Workspace and Microsoft 365, on separate price tabssource (opens the vendor's page in a new tab)
Domains
- Outreach2day
- Bought in the app and registered to you, or bring your ownsource
- Mailin
- Bought through Mailin or transferred in at no extra cost; 2–5 inboxes per domain on SMTP and Google, 100 on Microsoftsource (opens the vendor's page in a new tab)
Sending limits
- Outreach2day
- Up to 25 cold emails per mailbox a day, 5 mailboxes per domainsource
- Mailin
- Microsoft: up to 10 emails a mailbox a day, 5 cold and 5 warmup; not published for SMTP or Googlesource (opens the vendor's page in a new tab)
Warmup
- Outreach2day
- IncludedIncluded for the life of the mailbox, 75+ warmup emails a daysource
- Mailin
- Recommended for 2–3 weeks in its FAQ; no warmup tool or price on the sitesource (opens the vendor's page in a new tab)
Sequencers
- Outreach2day
- Its own sequencer; syncs to Instantly and Smartlead, CSV export for 14 toolssource
- Mailin
- No sequencer; API export to Instantly, Smartlead, ReachInbox and EmailBison, with fields for PlusVibe and MasterInboxsource (opens the vendor's page in a new tab)
API
- Outreach2day
- IncludedREST API on every accountsource
- Mailin
- IncludedPublic REST API with a bearer token: domains, mailboxes, servers, exports, verifiersource (opens the vendor's page in a new tab)
MCP server
- Outreach2day
- IncludedHosted MCP server: domains, mailboxes, warmup, campaigns, repliessource
- Mailin
- Not includedNone foundsource (opens the vendor's page in a new tab)
Support
- Outreach2day
- In-app chat and emailsource
- Mailin
- 24/7 Slack access to a team of 8 to 10 (technical, deliverability, GTM)source (opens the vendor's page in a new tab)
Refunds
- Outreach2day
- Month to month, cancel any timesource
- Mailin
- All payments final and non-refundable; one exception, a 21-day deliverability guarantee with five conditionssource (opens the vendor's page in a new tab)
Trial
- Outreach2day
- No free trialsource
- Mailin
- No free trial on the sitesource (opens the vendor's page in a new tab)
Prices
Outreach2day and Mailin prices
Outreach2day
Mailboxes$2.50 a month each
12 to 99 · $2.50 · monthly
Warmup, sequencer, analytics, placement testssource
Volume, from 100$1.50 a month each
100 to 999 · $1.50 · monthly
Warmup, sequencer, analytics, placement testssource
Volume, from 1,000$0.50 a month each
1,000 or more · $0.50 · monthly
Warmup, sequencer, analytics, placement testssource
EnterpriseOn a call
Larger volumes · n/a · monthly
Better prices for larger volumessource
Mailin
SMTP Solopreneur$299 a month
200 accounts · $1.50 · monthly
Dedicated servers and IPs, automated DNS, 1-day delivery, 2–5 inboxes per domainsource (opens the vendor's page in a new tab)
SMTP Business$749 a month
500 accounts · $1.50 · monthly
Same as Solopreneursource (opens the vendor's page in a new tab)
SMTP Enterprise$1,499 a month
1,000 accounts, then $1 each · $1.50; $1 past 1,000 · monthly
Same, plus unlimited extra accounts at $1source (opens the vendor's page in a new tab)
Google Solopreneur$99 a month
25 accounts · $3.96 · monthly
Official Google accounts, full admin control, 1-day deliverysource (opens the vendor's page in a new tab)
Google Business$299 a month
100 accounts · $2.99 · monthly
Same as Google Solopreneursource (opens the vendor's page in a new tab)
Google Enterprise$1,399 a month
500 accounts · $2.80 · monthly
Same as Google Solopreneursource (opens the vendor's page in a new tab)
Microsoft Solopreneur$299 a month
800 accounts · $0.37 · monthly
100 mailboxes per domain, up to 5 cold emails a mailbox a day, 2–3 day deliverysource (opens the vendor's page in a new tab)
Microsoft Business$749 a month
2,500 accounts · $0.30 · monthly
Same as Microsoft Solopreneursource (opens the vendor's page in a new tab)
Microsoft Enterprise$1,999 a month
12,000 accounts · $0.17 · monthly
Same as Microsoft Solopreneursource (opens the vendor's page in a new tab)
List prices from Outreach2day's pricing page and Mailin's pricing page, checked . Taxes and card fees excluded.
Full monthly cost at 2,500, 25,000 and 100,000 cold emails a day
Mailin rows use its SMTP packs at 25 cold emails a mailbox a day (Mailin publishes no SMTP limit), the cheapest mix of packs for the volume and the Instantly plan that sends and warms it (Instantly pricing); Mailin does not publish a domain price, so its totals are floors. Outreach2day rows add .com domains at $13 a year; warmup and the sequencer are in the mailbox price.
2,500 a day: Mailin from $396 a month ($299 + $97); Outreach2day $171.67 for 100 mailboxes.
25,000 a day: Mailin from $2,201 ($1,495 for five 200-account packs + $706); Outreach2day $716.67 for 1,000 mailboxes at $0.50.
100,000 a day: Mailin from $7,119 (Enterprise $1,499 + 3,000 accounts at $1 + $2,620); Outreach2day $2,866.67 for 4,000 mailboxes.
Full cost
Mailin and Outreach2day at the same emails a day
Mailin mailboxes at 25 a day (not published for SMTP, so the same 25 as ours; its Microsoft plans allow 5 cold 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.
- Mailin + InstantlyMailin + Instantly: from $396
- Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $268.67
- Outreach2day all-inOutreach2day all-in: $171.67
- Mailin + InstantlyMailin + Instantly: from $2,201
- Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $1,422.67
- Outreach2day all-inOutreach2day all-in: $716.67
- Mailin + InstantlyMailin + Instantly: from $7,119
- Outreach2day mailboxes + InstantlyOutreach2day mailboxes + Instantly: $5,486.67
- Outreach2day all-inOutreach2day all-in: $2,866.67
| Setup | 2,500 a day · 55,000 a month100 Mailin mailboxes at 25 a day, 100 of ours at 25 | 25,000 a day · 550,000 a month1,000 Mailin mailboxes at 25 a day, 1,000 of ours at 25 | 100,000 a day · 2,200,000 a month4,000 Mailin mailboxes at 25 a day, 4,000 of ours at 25 |
|---|---|---|---|
| Mailin + Instantly SMTP mailboxes from $1.50 in SMTP packs, $1 past 1,000; Microsoft $0.17 at 5 cold emails a day · 25 cold emails a day each; Instantly for sending and warmup | from $396a month at least $224.33 more than Outreach2day all-infrom $7.20 per 1,000 emails · 100 mailboxesMailboxes alone: $299 a month
| from $2,201a month at least $1,484.33 more than Outreach2day all-infrom $4 per 1,000 emails · 1,000 mailboxesMailboxes alone: $1,495 a month
| from $7,119a month at least $4,252.33 more than Outreach2day all-infrom $3.24 per 1,000 emails · 4,000 mailboxesMailboxes alone: $4,499 a month
|
| Outreach2day mailboxes + Instantly Keep Instantly, buy the mailboxes from us; 25 a day each | $268.67a month $97 more than Outreach2day all-in$4.88 per 1,000 emails · 100 mailboxesMailboxes alone: $150 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
| $5,486.67a month $2,620 more than Outreach2day all-in$2.49 per 1,000 emails · 4,000 mailboxesMailboxes alone: $2,000 a month
|
| Outreach2day all-in Mailboxes, warmup and our sequencer in one bill; 25 a day each | $171.67a month $3.12 per 1,000 emails · 100 mailboxesMailboxes alone: $150 a month
| $716.67a month $1.30 per 1,000 emails · 1,000 mailboxesMailboxes alone: $500 a month
| $2,866.67a month $1.30 per 1,000 emails · 4,000 mailboxesMailboxes alone: $2,000 a month
|
- Mailin + Instantly
SMTP mailboxes from $1.50 in SMTP packs, $1 past 1,000; Microsoft $0.17 at 5 cold emails a day · 25 cold emails a day each; Instantly for sending and warmup
- 2,500 a day · 55,000 a month
from $396a month
at least $224.33 more than Outreach2day all-infrom $7.20 per 1,000 emails · 100 mailboxesMailboxes alone: $299 a month
- 100 SMTP accounts: Solopreneur ($299 for 200): $299 source (opens the vendor's page in a new tab)
- 20 domains, price not published: Not published source (opens the vendor's page in a new tab)
- Instantly Hypergrowth (sequencer, warmup): $97 source (opens the vendor's page in a new tab)
- 25,000 a day · 550,000 a month
from $2,201a month
at least $1,484.33 more than Outreach2day all-infrom $4 per 1,000 emails · 1,000 mailboxesMailboxes alone: $1,495 a month
- 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 source (opens the vendor's page in a new tab)
- Instantly Hypergrowth + 7 Outbound add-ons (sequencer, warmup): $706 source (opens the vendor's page in a new tab)
- 100,000 a day · 2,200,000 a month
from $7,119a month
at least $4,252.33 more than Outreach2day all-infrom $3.24 per 1,000 emails · 4,000 mailboxesMailboxes alone: $4,499 a month
- 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 source (opens the vendor's page in a new tab)
- Instantly Hypergrowth + 29 Outbound add-ons (sequencer, warmup): $2,620 source (opens the vendor's page in a new tab)
- 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
- 100 Outreach2day mailboxes at $1.50 (volume price from 100): $150
- 20 domains at $13 a year: $21.67
- Instantly Hypergrowth (sequencer, warmup): $97 source (opens the vendor's page in a new tab)
- 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
- 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 source (opens the vendor's page in a new tab)
- 100,000 a day · 2,200,000 a month
$5,486.67a month
$2,620 more than Outreach2day all-in$2.49 per 1,000 emails · 4,000 mailboxesMailboxes alone: $2,000 a month
- 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 source (opens the vendor's page in a new tab)
- 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
- 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
- 100,000 a day · 2,200,000 a month
$2,866.67a month
$1.30 per 1,000 emails · 4,000 mailboxesMailboxes alone: $2,000 a month
- 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
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 (Mailin: 25, not published for SMTP, so the same 25 as ours; its Microsoft plans allow 5 cold a day; 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. Mailin does not publish a domain price, so its domains (5 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 · 100,000 a day
You save $4,252.33 a month ($51,028 a year)with Outreach2day at 100,000 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
- Up to 99 mailboxes$2.50a mailbox a month
- From 100 mailboxes$1.50a mailbox a month
- From 1,000 mailboxes$0.50a mailbox a month
Enterprise plan. Better prices for larger volumes.
Book a callWhere they differ
What each one includes
Mailin: SMTP accounts on dedicated servers and IPs, official Google Workspace accounts or Microsoft 365 accounts (5 cold emails a mailbox a day), DNS set automatically, delivery in a day, domains bought through Mailin or transferred in, an email verifier and a REST API that exports accounts to Instantly, Smartlead, ReachInbox and EmailBison. Warmup and sending happen in that sequencer.
Outreach2day: mailboxes on your domains with DNS set automatically, warmup that starts at once and keeps running, a sequencer with steps, schedules, stop on reply, stats and a reply inbox, per-mailbox analytics, a REST API and a hosted MCP server. Our mailboxes run on our own infrastructure and land in the inbox. They also sync to Instantly and Smartlead by API key, and EmailBison and 13 more tools take a CSV.
Terms and the company
Mailin: monthly or yearly packs that renew automatically; every payment is final except under a 21-day deliverability guarantee that requires a full warmup with no cold sends. The site names no legal entity or address; the terms are under Florida law.
Outreach2day: no free trial; month to month on the price you see, cancel any time, 12-mailbox minimum ($30 a month). Details: Mailin review, Mailin pricing, Outreach2day pricing.
Fit
Which one to pick
Outreach2day
Pick Outreach2day if
- You want mailboxes, warmup and a sequencer in one bill
- You want to pay per mailbox from 12; Mailin's smallest SMTP pack is 200
- You want a REST API and an MCP server for domains, mailboxes and campaigns
- You run 1,000+ mailboxes: $0.50 a mailbox, Enterprise prices on a call
Mailin
Pick Mailin if
- You want an email verifier billed by the same vendor
- You want support in a 24/7 Slack channel
Outreach2day
Why Outreach2day
We make Outreach2day, so this page is ours. Every Mailin fact above links Mailin's own page.
Mailin's account price is low and its bill is incomplete: sending and warmup need a sequencer subscription, the packs round you up to 200, 500 or 1,000 accounts, and nothing is refunded. Outreach2day prices the whole job per mailbox, and each mailbox sends 25 cold emails a day from day 14. Our mailboxes run on our own infrastructure and land in the inbox. Most people think only Google gets to the inbox and overpay for it. Teams that keep their sequencer can still use our mailboxes in it, with warmup running on our side.
Outreach2day mailboxes are $2.50 a mailbox up to 99, $1.50 from 100, $0.50 from 1,000, with warmup, the sequencer and the replies inbox included at every tier. For larger volumes and better prices there is the Enterprise plan: book a call and we size it with you.
Outreach2day
- Warmup and sending included
- $2.50 a mailbox, 12 minimum
- Month-to-month billing
FAQ
Outreach2day vs Mailin: questions
Is Outreach2day cheaper than Mailin?
All in, yes at every volume we price: $171.67 against from $396 a month at 2,500 cold emails a day, $716.67 against from $2,201 at 25,000 and $2,866.67 against from $7,119 at 100,000. The Mailin figures are its SMTP packs with Instantly, before domains.
Do both include warmup?
Outreach2day includes warmup for every mailbox for as long as you keep it. Mailin recommends 2 to 3 weeks of warmup and sells no warmup tool, so it runs in your sequencer.
Can I move from Mailin to Outreach2day?
Yes. Order Outreach2day mailboxes 14 days before you stop Mailin so warmup finishes while the old accounts still send, then cancel the Mailin plan before it renews. Point domains you transferred into Mailin at Outreach2day; SPF, DKIM and DMARC are set for you.
Which has a free trial?
Neither. Outreach2day bills month to month from $30 for 12 mailboxes; Mailin's smallest SMTP plan is $299 a month for 200 accounts and payments are final.
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.
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- Mailboxes for Cold Email: A Buyer's ChecklistBlog
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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.
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.
