Email warmup and cold email infrastructure pricing (2026): 21 tools
Warmup and sending infrastructure are the two costs that grow with every mailbox you add to a cold email setup. This page shows the lowest published price of each dedicated warmup tool and each mailbox/domain provider, whether it's charged per mailbox, per plan or by warmup volume, and the vendor's full plan list, so you can price a setup of 10, 50 or 100 inboxes.
Summary: 15 of 21 tools publish a monthly entry price, from $10/mo (Warmforge) to $240/mo (Mailreef); median $39/mo. 2 list a free plan. Prices verified against vendor pages, latest check .
How this page works: Sorted by lowest published entry price; ties alphabetical. Providers priced only per mailbox or per domain (no single monthly plan) are listed after; their per-unit rates are in the plan details column. The entry price is the lowest price the vendor publishes (often with annual billing), "How it's charged" is read from the vendor's plan list, and each row links to the pricing page we checked. No placement here is paid. Methodology.
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Entry prices at a glance
| Entry price | Tools | Which |
|---|---|---|
| Under $20/mo | 3 | Warmforge, Warmbox, Warmup Inbox |
| $20–$49/mo | 6 | TrulyInbox, lemwarm, MailReach, Mailivery, Zapmail, Warmy |
| $50–$99/mo | 3 | Mission Inbox, Mailwarm, Maildoso |
| $100–$199/mo | 2 | Inframail, InboxAlly |
| $200/mo and up | 1 | Mailreef |
Email warmup tools (10)
Dedicated warmup and inbox-placement tools. Several cold email platforms also include warmup in their plans; see the cold email pricing page.
| Tool | Entry price | How it's charged | Plan details (vendor-published) | Free plan | Free trial | Verified |
|---|---|---|---|---|---|---|
| Warmforge Visit Warmforge ↗ | From $10/mo | Per mailbox | Warmup $10 per mailbox slot/mo billed quarterly (1 slot free; annual −10%); placement tests Pro $39/mo monthly ($32.50 annual), Growth $169 ($140.80); included free with Salesforge (unlimited warmup slots) | Yes | — | 2026-10-29 |
| Warmbox | From $15/mo | By mailboxes included | Two price sets are shown depending on billing: Solo $15 or $19/mo (1 inbox), Start-up $69 or $79/mo (3 inboxes), Growth $139 or $159/mo (6 inboxes); custom plans for more volume | — | — | 2026-11-01 |
| Warmup Inbox | From $15/mo | Per mailbox | Basic $15/inbox/mo (75 warmup emails/day); Pro $49; Max $79; volume lowers the per-inbox average; 7-day free trial | — | Yes | 2026-10-29 |
| TrulyInbox | From $22/mo | Per plan | Free forever for 1 account (10 warmup emails/day); paid plans $22/mo billed annually ($264/yr), $84/mo billed annually ($99 monthly) and Scale $169/mo billed annually ($199 monthly); 7-day free trial | Yes | Yes | 2026-11-01 |
| lemwarm | From $24/mo | Per mailbox | Billed yearly: Essential $24 per email address/mo; Smart $40; Custom for 10+ users (monthly billing costs about 10% more) | — | — | 2026-10-29 |
| MailReach | From $25/mo | Per mailbox | Email warmer + spam tester $25 per mailbox/mo monthly ($20 per mailbox/mo billed annually); spam test credits sold separately | — | — | 2026-10-28 |
| Mailivery | From $29/mo | By warmup emails per day | Starter $29/mo (200 warmup emails/day shared, unlimited mailboxes); Professional $79/mo (800/day); Business $199/mo (2,500/day); custom plans for higher volume | — | — | 2026-10-31 |
| Warmy Visit Warmy ↗ | From $49/mo | Per plan | Plans starting from $49/mo; 7-day trial | — | Yes | 2026-10-28 |
| Mailwarm | From $69/mo | Per plan | Starter $69/mo, Growth $159/mo, Scale $479/mo billed annually; extra interactions $0.02 each; no traditional free trial | No | No | 2026-10-31 |
| InboxAlly | From $149/mo | By seed emails per day | Billed monthly: Starter $149/mo (100 seed emails/day, 1 sender profile), Plus $645/mo (500/day, 5 profiles), Premium $1,190/mo (1,000/day, 10 profiles); Enterprise custom; 10-day free trial, no card | — | Yes | 2026-10-30 |
Cold email mailboxes and domains (11)
Providers that sell the Google Workspace, Microsoft or SMTP mailboxes and domains that cold email tools send from.
| Tool | Entry price | How it's charged | Plan details (vendor-published) | Free plan | Free trial | Verified |
|---|---|---|---|---|---|---|
| Zapmail | From $39/mo | By mailboxes included | Starter $39/mo (10 Google/Microsoft mailboxes, extra $3.50/mailbox); Growth $99/mo (30); Pro $299/mo (100, API) | — | — | 2026-10-28 |
| Mission Inbox | From $50/mo | By mailboxes included | Lite $50/mo (15 mailboxes, 5,000 sends/mo, upgrade required past the limits); Scale $199/mo (30 mailboxes, 10,000 sends/mo, then pay as you go at 1 credit = $1); dedicated IPs on both; the Pro $99/mo API-sending plan shown earlier is no longer listed | — | — | 2026-11-02 |
| Maildoso | From $75/mo | By mailboxes included | Monthly SMTP mailboxes: 30 for $75/mo, 300 for $225/mo, 1,000 for $499/mo; quarterly plans with domains from $299/qtr; domains $12/yr ($15 from Oct 1, 2026 per vendor); no discounts | — | — | 2026-10-29 |
| Inframail | From $147/mo | Per plan | Unlimited plan $147/mo (unlimited inboxes, ~80,000 emails/mo); Agency Pack $387/mo; done-for-you setup $797/mo (3-month minimum) | — | — | 2026-10-28 |
| Mailreef | From $240/mo | Per plan plus per send | Agency $240/mo with a 12-month commitment, or Agency Flex $249/mo month to month, each plus $0.001 per send; Enterprise custom | — | — | 2026-10-29 |
| Infraforge Visit Infraforge ↗ | See plan details | Per mailbox | Calculator-based: mailbox slots $4/mo (billed yearly), .com domains $14/yr; dedicated IPs $99/mo each; no free trial | — | No | 2026-10-28 |
| Premium Inboxes | See plan details | Per mailbox | $3.50 per inbox/mo (1-249 inboxes), $3.00 (250-1,249), $2.80 (1,250+), no monthly commitment; managed ECC service $7,500/mo by application | No | — | 2026-10-31 |
| InboxKit | $3 (usage-based) | Per mailbox | One flat rate per mailbox: $3.00/mailbox/mo monthly or $2.50 annual (Google Workspace or Microsoft 365); Azure $30 per tenant/mo (up to 100 mailboxes); pre-warmed mailboxes $6–$9/mo by warmup age plus a one-time domain fee from $12.50 | — | — | 2026-10-30 |
| Hypertide | See plan details | Per mailbox or per domain | Google inboxes $3.30/inbox/mo with no packages or minimums; Microsoft (Entra) domains $25/domain/mo including 25 inboxes ($1 per inbox); automated setup and DNS | — | — | 2026-10-28 |
| Mailforge Visit Mailforge ↗ | See plan details | Per mailbox | Shared mailbox infrastructure: $3 per mailbox slot/mo billed yearly (minimum 10 slots; e.g. 25 slots $60/mo yearly or $75/mo monthly); .com domains $14/year; automated DNS setup included | — | — | 2026-10-31 |
| ScaledMail | See plan details | Per mailbox or per domain | Priced per unit: Google Workspace $3.50/mailbox/mo; Microsoft Outlook $50/domain/mo (25 mailboxes per domain); SMTP $3.75/domain/mo (4 mailboxes per domain); SPF, DKIM and DMARC configured; reporting add-ons $2–5/mo | — | — | 2026-10-31 |
Recent price changes in this table
| Tool | Change | Before | After | Observed |
|---|---|---|---|---|
| Mission Inbox | Tier no longer offered | Lite $50/mo, Scale $199/mo and a Pro $99/mo plan for API sending (5 domains, 100K sends/mo) (2026-10-26) | Lite $50/mo (15 mailboxes, 5,000 sends) and Scale $199/mo (30 mailboxes, 10,000 sends, then pay as you go); no Pro API plan shown | 2026-11-02 |
From our price changes log, documented by comparing two dated checks of the vendor's page.
FAQ
How much do email warmup tools cost in 2026?
Across the 15 email warmup tools on this page with a published monthly entry price, the lowest plans run from $10/mo (Warmforge) to $240/mo (Mailreef); the median entry price is $39/mo. 9 start under $50/mo and 3 at $100/mo or more. Entry prices are the lowest each vendor shows, often with annual billing; prices checked against vendor pages, latest Nov 2, 2026.
What is the cheapest email warmup tool?
By lowest published entry price: Warmforge from $10/mo, Warmbox from $15/mo, Warmup Inbox from $15/mo. Check what each entry plan includes in the table (users, accounts, emails or contacts), since the cheapest plan is often capped.
Which email warmup tools have a free plan?
Warmforge and TrulyInbox list a free plan on their pricing pages; limits apply. 4 of the 21 tools list a free trial.
How are email warmup tools priced?
Of the 21 tools on this page: 8 per mailbox, 4 by mailboxes included, 4 per plan, 2 per mailbox or per domain, 1 by warmup emails per day, 1 by seed emails per day, 1 per plan plus per send. The 'How it's charged' column shows which applies to each tool, read from its pricing page.
How do I estimate warmup cost for many inboxes?
For tools charged per mailbox, multiply the per-mailbox price by the number of inboxes you warm. Tools sold by mailboxes included or by warmup emails per day cap what one plan covers, so check the plan details for the inbox or volume limit before comparing. Annual or quarterly billing lowers the rate on several of them.
Do I need a separate warmup tool?
Not always. Many cold email platforms include warmup with their sending plans, and some mailbox providers sell pre-warmed or auto-warmed inboxes. A dedicated warmup tool mostly adds value when you send from mailboxes outside those platforms or want inbox-placement tests.
Related
- Best email warmup tools
- Cold email infrastructure providers
- Deliverability testing tools
- lemwarm alternatives
- Inframail alternatives
- Cold email software pricing
- MailReach vs Warmy
- All deliverability & warmup tools
- Pricing table for all tools
- Sales tool pricing report
Blank or "—" means the vendor did not publish it or we could not confirm it. Spotted an outdated price? Report it.
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