Warmy
Email warm-up with seed testing, verification and DMARC monitoring
Warmy report card
Fair · out of 4.0 · graded Oct 18, 2026
Best for warm-up, list checks and DMARC in one plan
Warmy is the one warm-up service here that also checks lists and watches DMARC on every plan, with a US seed list of 500,000+ inboxes that opens and replies to your real sends. Prices start at $49 a month and climb with volume, and the page doesn't say how far, so expect a demo before a firm number.
Who Warmy is for
- Great if you want warm-up, list checks and DMARC watched on one bill
- Handy when you send from Klaviyo, Shopify or Mailchimp
- Good for teams sharing one plan, as members share its quota
Who Warmy is not for
- Not for you if you want a firm price before a sales call, as only the $49 start is listed
- Pricey if you're warming a single inbox, at $49 against $15 to $20 elsewhere
Why Warmy gets a 2.4
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- CValue for moneyFrom $49 a month, priced by warm-up volume rather than per inbox, with no yearly discount listed. Among its listed warm-up rivals that's above Warmup Inbox ($15) and MailReach ($20) for one inbox but well under InboxAlly ($149), and list checks and DMARC monitoring come with it.
- CFree plan and trialNo free plan, but a 7-day trial of any package with no card, and every feature is open during it.
- BFeaturesIt covers all three jobs on every plan: warm-up with business or consumer inboxes, a rotating US seed list, list checks and DMARC monitoring, plus placement tests, Postmaster data and an AI co-pilot that suggests fixes.
- CEase of useNo App Store rating on record. There's a lot to take in, from warm-up volume to DNS records and seed tests. The AI co-pilot reads your data and suggests what to fix, which helps.
- BPlatforms and integrationsWeb and a Chrome extension, with Klaviyo, Shopify, Mailchimp, HubSpot, SendGrid, Amazon SES and Google Postmaster Tools, a documented API, and Zapier, n8n and Make. No phone or desktop app.
What these grades rest on. Graded from this listing, whose facts were read from Warmy's own pages on 18 October 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
Make Warmy? Put this grade on your site
Paste this where you want the badge. It links here and follows the grade if it changes. About badges
<a href="https://toolgpa.com/tools/warmy#review"><img src="https://toolgpa.com/badge/warmy.svg" alt="Warmy: 2.4 GPA on ToolGPA" width="196" height="56"></a>Where Warmy stands among email verification and deliverability tools
Warmy's GPA of 2.4 is higher than 6 of the 15 other email verification and deliverability tools we grade, and level with 8.
It stands best on features (B, above 14 of 15) and worst on ease of use (C, above 0).
Its paid plans start at $49 a month, against a middle price of $28 for the category: 5 of the 7 others that charge start lower.
On features, ease of use and platforms it scores 2.7 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price.
Each grade against the category
Every bar is all 16 email verification and deliverability tools we grade, cut by the letter each got. Warmy’s own letter is outlined.
- CValue for moneyAbove 2 of 15, level with 10
- CFree plan and trialAbove 2 of 15, level with 12
- BFeaturesAbove 14 of 15, level with 1
- CEase of useAbove 0 of 15, level with 7
- BPlatforms and integrationsAbove 3 of 15, level with 12
Price against what you get
Each dot is one of 8 email verification and deliverability tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep Warmy, or make your own?
Keep it
To replace Warmy you would be making a network of real inboxes that open and answer your emails. That is not a weekend's work, with an AI app builder or without one.
It costs $588 a year.
What you could not
- A network of real inboxes that open and answer your emails.
- Checking that an address exists without writing to it.
- Reading the reports inbox providers send about your domain.
- It plugs into other products, Klaviyo, Shopify and Mailchimp among them, and has an API.
- AI features, unless you pay a model provider for each request yourself.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Warmy’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Warmy?
Warmy is mainly a warm-up service: domains and IPs exchange emails with a network the vendor puts at over a million real mailboxes, and a seed list of 500,000+ US inboxes opens and replies to your real sends. Every plan also includes list verification and DMARC monitoring, so it touches all three jobs, plus placement tests and an AI co-pilot. Plans are priced by warm-up volume rather than per inbox and are quoted from $49 a month.
Warmy is a paid product with a free trial, starting at $49 per month and up. See every plan
Good for
- Senders who want warm-up, verification and DMARC on one bill
- Ecommerce brands sending from Klaviyo, Shopify or Mailchimp
- Teams that want a named deliverability expert on the account
Worth knowing
- The pricing page gives only a starting price of $49 a month; the real cost depends on warm-up volume.
- Plans are priced by warm-up volume, not per inbox, and team members share the plan's mailbox quota.
- The vendor lists no annual discount or plan tiers on the page; larger needs go through a demo.
Key features
- Warm-up network
- Domains and IPs warm up with real business or consumer mailboxes, sending during working hours in the recipient's time zone.
- US seed list
- More than 500,000 US seed mailboxes, rotated monthly, open and reply to your sends and move them out of spam.
- Verification and DMARC tracker
- List verification and SPF, DKIM and DMARC monitoring are included on every plan, with the exact record to change.
- Adeline AI co-pilot
- Reads your tests, DNS and warm-up data and suggests what to fix; a template optimizer scores emails and rewrites parts that trigger spam filters.
- Reputation and Postmaster data
- Tracks domain and IP reputation with blacklist alerts, and pulls Google Postmaster data in beside warm-up results.
- API and automation
- A documented API covers every feature, with n8n, Zapier and Make for automation and a Chrome extension for checking templates.
Warmy pricing
- Starts at
- $49 per month and up
- Free plan
- None
- Free trial
- 7-day free trial of any package, no credit card required
| Plan | Price | What you get |
|---|---|---|
| B2B sender | $49per month and up | Warm-up inside a network of Google Workspace and Microsoft 365 business mailboxes; the price follows the warm-up volume you need. |
| B2C sender | $49per month and up | Warm-up inside consumer mailboxes at Gmail, Yahoo and Outlook; the price follows the warm-up volume you need. |
| Custom plan | Custom | A plan designed with Warmy's team around your volume and providers, with a dedicated success manager. |
Read from warmy.io on Oct 18, 2026. Prices change, so confirm with Warmy before you buy.
Works with
Warmy alternatives
- Warmy vs MailReach
From $20/mo
- Warmy vs Warmup Inbox
Free trial · from $15/mo
- Warmy vs InboxAlly
Free trial · from $149/mo
- Warmy vs GlockApps
Free plan · from $59/mo
- Warmy vs EasyDMARC
Free trial · from $35.99/mo
Common questions
Is Warmy free?
No, Warmy is a paid product, but you can try it first. 7-day free trial of any package, no credit card required.
How much does Warmy cost?
Warmy lists 3 plans. B2B sender: $49 per month and up. B2C sender: $49 per month and up. Custom plan: custom pricing. Prices were read from warmy.io on Oct 18, 2026.
What platforms does Warmy work on?
Warmy is available on Web. It also has a browser extension.
Does Warmy have an Android app?
No Android app was listed when its pages were read on Oct 18, 2026. Warmy is listed for Web.
Does Warmy have an iPhone app?
No iPhone app was listed when its pages were read on Oct 18, 2026. Warmy is listed for Web.
Is Warmy open source?
Warmy is not described as open source on its own site, as read on Oct 18, 2026.
Does Warmy have an API?
Yes. Warmy offers a public API, according to its own site.
What does Warmy integrate with?
Warmy's listing names Klaviyo, Shopify, Mailchimp, HubSpot, SendGrid, Amazon SES, Google Postmaster Tools and Zapier. A listing names up to eight integrations, so it may connect to more.
Who makes Warmy?
Warmy is made by Warmy.io.
What are the alternatives to Warmy?
The closest alternatives to Warmy in our directory are MailReach, Warmup Inbox, InboxAlly, GlockApps and EasyDMARC. Each one has a side-by-side comparison with Warmy.
How does Warmy compare with other email verification and deliverability tools?
Warmy's GPA of 2.4 is higher than 6 of the 15 other email verification and deliverability tools we grade, and level with 8. It stands best on features (B, above 14 of 15) and worst on ease of use (C, above 0).
Is Warmy good value for money?
ToolGPA grades Warmy C for value for money. Its paid plans start at $49 a month, against a middle price of $28 for the category: 5 of the 7 others that charge start lower. On features, ease of use and platforms it scores 2.7 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price.
Could I make my own version of Warmy?
To replace Warmy you would be making a network of real inboxes that open and answer your emails. That is not a weekend's work, with an AI app builder or without one. It costs $588 a year. What you could not make: A network of real inboxes that open and answer your emails. Checking that an address exists without writing to it. Reading the reports inbox providers send about your domain. It plugs into other products, Klaviyo, Shopify and Mailchimp among them, and has an API. This is a judgement from its listing. We have not built one.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 18, 2026.