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Companies that sell Google Workspace, Microsoft 365 or SMTP mailboxes set up for cold outreach. This is the category PureMail competes in, so every profile states where we lose as well as where we win.
Published prices on the dates shown on each profile. Score is the PureMail rubric score out of 5 (how we score).
| Tool | Price | Mailbox types | Setup | Warmup | Score |
|---|---|---|---|---|---|
| Aerosend | From $2 per inbox per month past 150; $4 each for the first 150; minimum 30 inboxes, sold in batches of 30 | SMTP | Provisioned within two days (the same page also says live in 24 hours), then a 21-day warmup; you send from day 22 | Included and managed; 21 days before sending starts, on what the site describes as premium warmup pools | 3.6 / 5 |
| Cheap Inboxes | From $2.80 per mailbox per month at 1,000 or more; $3.50 for 1 to 99, $3.25 from 100, $3 from 250; the same for Google and Microsoft; domains from $2.50 a year | Google Workspace, Microsoft 365 | Inconsistent: the homepage says about 30 minutes, the FAQ 10 minutes, and the fulfilment policy typically about 48 hours | Not included; warm up in your sequencer | 3.6 / 5 |
| ColdInfra | From $2.50 per mailbox per month from 100 mailboxes; $2.80 from 30, $3 from 10; plus a one-time setup fee of $24.99, $40 or $54.99; the same for Google Workspace and Microsoft 365 | Google Workspace, Microsoft 365 | Mailboxes provisioned within 24 hours of your nameservers pointing at ColdInfra, most domains live the same day; then a 2 to 3 week warm-up ramp with reduced sending sooner | Contradictory: the homepage and pricing page say warm-up runs for two to three weeks before you send; the about page says ColdInfra does not run warm-up as a managed service and instead sets your sequencer's own warm-up to a safe ramp | 4.2 / 5 |
| Heyo Infra | From $19 per month for up to 50 mailbox slots on Starter; $39 for 200, $79 for 500; plus about $0.25 per 1,000 emails paid to Microsoft for Azure sending | SMTP | Minutes: connect Microsoft with OAuth, point nameservers, generate mailboxes in batches of up to 500 with a chosen name format | Not included; the FAQ says to warm up over 2 to 3 weeks in your sender and keep daily volume between 25 and 35 emails per inbox | 3.8 / 5 |
| Hypertide | From $1 per inbox per month on Microsoft Entra domains ($25 a domain for 25 inboxes); Google inboxes $3.30 each with no minimum | Google Workspace, Microsoft 365 | 4 to 6 hours, fully automated, uploaded to your sequencer | Warmup is switched on in your sequencer at delivery; Hypertide adds bulk tools for warmup settings but sells no warmup of its own | 4.0 / 5 |
| InboxKit | From $2.50 per mailbox per month on annual billing, $2.70 quarterly, $3 monthly; same price for Google and Microsoft; no minimum | Google Workspace, Microsoft 365 | Automated; the FAQ says orders complete in 30 to 120 minutes, the homepage says 10 minutes | Add-on at $3 a mailbox a month, ramping from 2 to 40 emails a day; the homepage comparison table lists warmup as built in | 4.2 / 5 |
| InboxOne | From $39 per month for 10 Google Workspace mailboxes on Starter ($29 a month billed yearly); $99 for 30, $299 for 100; extra mailboxes $3.50, $3.25 and $3 | Google Workspace | The FAQ says mailboxes are typically ready within 5 to 15 minutes of provisioning | The features page offers pre-warmed mailboxes with established reputation or custom warmup schedules for fresh ones; the pricing page does not say which the plans include | 3.4 / 5 |
| Infraforge | From $3.33 per mailbox slot per month billed yearly, $4 billed quarterly; 10-slot minimum; cheaper past 100 slots | SMTP | About 5 minutes, self-serve | Not included; Warmforge, a separate Salesforge product, lists $10 a mailbox slot a month with one free slot | 4.0 / 5 |
| Inframail | From $147 per 28 days for unlimited inboxes (about $4.90 a mailbox at 30, $1.47 at 100, $0.37 at 400) | SMTP | Minutes, self-serve, with automatic SPF, DKIM and DMARC | Not included on the self-serve plans; Inframail recommends warming new inboxes in your warmup tool | 4.2 / 5 |
| Litemail | From $2.83 per inbox on the 300-inbox Scale plan at $849 a month; $3.70 on the 10-inbox Starter plan; pre-warmed inboxes from $4.99 to $8 each | Google Workspace, Microsoft 365 | 10-minute onboarding; standard delivery in 12 hours, priority in 6; pre-warmed inboxes ready to send | Not included on fresh inboxes, which carry a 25-a-day cap; the pre-warmed plans sell inboxes warmed for 4 or more weeks | 3.6 / 5 |
| MailDeck | From $0.30 per Microsoft 365 inbox at the sale price ($30 a month per 100-inbox tenant, list $45); Google Workspace $39 a month for 10 (list $49), $3.50 each beyond; SMTP $0.50 an inbox | Microsoft 365, Google Workspace, SMTP | Google Workspace instant, SMTP within 24 hours, Microsoft 365 tenants 2 to 3 business days, all after you supply the domains | Not included on standard inboxes; the FAQ gives minimums of 3 to 7 days for Outlook, 15 for Google and 3 to 4 weeks for SMTP; pre-warmed Outlook tenants at $40 skip it | 4.0 / 5 |
| Maildoso | From $0.49 per mailbox / month on the 1,000-mailbox plan; $2.50 on the 30-mailbox plan | SMTP | Self-serve. Buy or connect domains, mailboxes are created in minutes; API and MCP server for automation | 80 warm-up emails a day per mailbox allowed alongside 15 cold emails, with no ramp-up required, according to Maildoso. You run the warm-up in your sequencer | 4.4 / 5 |
| Mailforge | From $2.50 per mailbox slot per month billed yearly, $3 billed monthly; 10-slot minimum; cheaper past 100 slots | SMTP | About 5 minutes, self-serve | Not included; Warmforge, a separate Salesforge product, lists $10 a mailbox slot a month with one free slot | 4.0 / 5 |
| Mailin | From $1.50 per inbox for SMTP accounts in bundles from $299 a month; Google Workspace $2.80 to $3.96; Microsoft 17 to 37 cents at 10 sends a day | Google Workspace, Microsoft 365, SMTP | A 5-minute onboarding form, then 1-day delivery for SMTP and Google and 2 to 3 days for Microsoft | Not included; Mailin recommends 2 to 3 weeks of warmup in your sending tool before scaling | 3.8 / 5 |
| Mailpool | From $3 per SMTP inbox a month; Google Workspace $4, Microsoft 365 $5; $2.60, $3.40 and $4.30 billed yearly | SMTP, Google Workspace, Microsoft 365 | Self-serve; the site says inboxes are created in seconds and a full setup takes about 5 minutes | Not mentioned; the SMTP inboxes sit on shared IPs the site describes as already warmed | 3.6 / 5 |
| Mailreef | From $1.60 per mailbox / month at 150 mailboxes on one server, before send fees | SMTP | Demo call first, then self-serve with 1-click domain and mailbox creation | Not included. A fresh dedicated IP must be warmed; Mailreef recommends a 1:1 ratio of cold to warm sends | 3.6 / 5 |
| Mission Inbox | From $3.33 per mailbox / month on Lite ($50 for 15); Scale works out at $6.63 at 30 mailboxes and $4.09 at 100 | SMTP | About 10 minutes, self-serve, with automatic DNS | Paid add-on billed in credits: $2 to $3 per mailbox per month | 3.6 / 5 |
| Premium Inboxes | From $3.50 per inbox / 4-week cycle on rolling billing; $35 a year prepaid (about $2.92 a month) | Google Workspace, Microsoft 365 | 12 hours after onboarding on standard Google orders; 6 hours on Microsoft 365 and priority orders | Included; warmup starts as soon as the inboxes are delivered | 4.0 / 5 |
| Primeforge | From $3.75 per mailbox slot per month billed yearly, $4.50 billed monthly; 10-slot minimum; cheaper past 100 slots | Google Workspace, Microsoft 365 | Self-serve in the app with automatic DNS; the site does not publish a delivery time | Not included; Warmforge, a separate Salesforge product, lists $10 a mailbox slot a month with one free slot, or buy pre-warmed mailboxes | 3.6 / 5 |
| ScaledMail | From $0.94 per mailbox / month on SMTP (four mailboxes on a $3.75 domain); $2 on Outlook; $3.50 on Google Workspace | Google Workspace, Microsoft 365, SMTP | 24 to 72 hours, managed by ScaledMail | Not stated on the pricing page; ScaledMail's package builder offers low, medium and max sending tiers and says lower tiers are safer over time | 3.8 / 5 |
| StackMail | From $2.50 per mailbox per month on the 100-mailbox Pro plan billed annually; $2.99 to $3.90 a mailbox on monthly billing depending on the plan | Google Workspace, Microsoft 365 | About 10 minutes, self-serve, with DNS done for you | Not included; connect the mailboxes to your sequencer and warm them there | 3.8 / 5 |
| WarmInboxes | From $3 per fresh Microsoft 365 inbox per month billed monthly ($2 yearly); fresh Google Workspace $3.50 with no minimum, $3.25 from 30 and $3 from 100; prewarmed inboxes $8 ($6 quarterly); Azure tenants $69 for 100 inboxes | Google Workspace, Microsoft 365 | Prewarmed inboxes the same day you order; fresh inboxes after 14 to 21 days of warmup | Prewarmed inboxes arrive warmed; fresh inboxes get 14 to 21 days of warmup run by WarmInboxes' technicians; prewarmed inboxes must keep a 1:2 cold-to-warmup ratio | 3.8 / 5 |
| Winnr | From $0.95 per account per month on the $189 Enterprise plan with 200 accounts; $1.38 on the $69 Startup plan with 50; extra accounts $1 each | SMTP | Minutes, self-serve: the site says 50 accounts in under 10 minutes | Built in at 60 cents a mailbox a month, with automatic ramp-up and health scores; Winnr advises at least 2 weeks, ideally 4, before sending | 4.4 / 5 |
| Zapmail | From $2.99 per mailbox / month | Google Workspace, Microsoft 365 | Self-serve. Zapmail states a 5-minute average and a 10-minute automated flow | Not included on standard plans. Separate pre-warmed mailbox tier from $6 to $8 per mailbox | 4.2 / 5 |
Managed private-server inboxes for cold email at $4 a month each for the first 150 and $2 after, in batches of 30 with warmup, placement tests and burn alerts.
Google Workspace and Microsoft inboxes at $3.50 a month each, $3.25 from 100, $3 from 250 and $2.80 from 1,000, with domains from $2.50 a year.
Done-for-you Google Workspace and Microsoft 365 inboxes at $3 a month each from 10, $2.80 from 30 and $2.50 from 100, plus a setup fee of $24.99 to $54.99.
Software that turns your own Azure account into cold email inboxes: $19 a month for 50 slots, $39 for 200, $79 for 500, plus Azure's $0.25 per 1,000 sends.
Automated cold email infrastructure: Google inboxes at $3.30 each with no minimum, Entra domains at $25 a month for 25 inboxes, $500 opening credit.
Google Workspace and Microsoft 365 mailboxes at $3 a month each, $2.50 on annual billing, no minimum, prepaid wallet; Azure tenants $30 a month.
Self-serve Google Workspace mailboxes with domains, DNS and sequencer exports in one dashboard: $39 a month for 10, $99 for 30, $299 for 100.
Private SMTP infrastructure with dedicated IPs from the Salesforge family: $4 a mailbox a month billed quarterly, $3.33 billed yearly, 10-slot minimum.
Flat-rate unlimited inboxes on dedicated Microsoft-backed infrastructure: $147 every 28 days for up to about 400 mailboxes, $387 for up to 1,000.
Google and Microsoft inboxes in bundles: $37 a month for 10, $97 for 30, $297 for 100, $849 for 300, plus pre-warmed inboxes from $39 for 5, domains included.
Hungarian-registered provider of Microsoft 365 tenants at $30 to $40 a month per 100 inboxes, Google Workspace plans from $39 for 10, and SMTP inboxes at 50c.
SMTP mailboxes for cold email at $2.50 each for 30, $0.75 for 300 and $0.49 for 1,000, each capped at 15 cold emails a day.
Shared-pool SMTP mailboxes from the Salesforge family: $3 a slot a month, $2.50 billed yearly, down to $2 and $1.67 past 1,000 slots; 10-slot minimum.
SMTP, Google Workspace and Microsoft inboxes in bundles: SMTP at $1.50 an inbox, Google $2.80 to $3.96, Microsoft 17 to 37 cents at 10 sends a day.
Self-serve inbox platform from Estonia: shared-IP SMTP inboxes at $3 a month, Google Workspace at $4 and Microsoft 365 at $5, about 15% less billed yearly.
Dedicated SMTP mail server with unlimited mailboxes and a dedicated IP, $240 to $249 a month plus $0.001 per send. Built for 20K+ emails a month.
Self-serve SMTP mailboxes on dedicated IPs: Lite is $50 a month for 15 mailboxes, Scale $199 for 30 plus $3 each, and warmup is billed in credits.
Managed Google Workspace and Microsoft 365 inboxes at $3.50 per inbox per 4-week cycle or $35 a year, with unlimited free replacements and an insured tier.
Google Workspace and Microsoft 365 mailboxes from the Salesforge family: $4.50 a slot a month, $3.75 billed yearly, 10-slot minimum, domains $14 a year.
Managed cold email packages built to your volume: Google Workspace at $3.50 a mailbox, Outlook at $50 a domain (25 mailboxes), SMTP at $3.75 a domain.
Google Workspace and Microsoft 365 mailboxes in bundles: $39 a month for 10, $99 for 30, $299 for 100, with 10 and 20 percent off quarterly and annual.
Prewarmed Google and Microsoft inboxes at $6 to $8 a month with a free domain, fresh Google Workspace from $3.50, Microsoft 365 from $3, Azure from 50 cents.
Bulk SMTP cold email accounts on Winnr's own servers: $69 a month for 50 accounts, $189 for 200, extras $1 each, domains from $1, warmup 60 cents.
Self-serve Google Workspace and Microsoft 365 mailboxes with automated DNS and OAuth export to 50+ sequencers. Plans start at $39 for 10 mailboxes.