The Warmy Insider’s Guide
Everything we know about Warmy in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Warmy
The Insider’s Guide
Email warm-up with seed testing, verification and DMARC monitoring
Every plan, grade, refund rule and rival among email verification and deliverability tools, read from Warmy’s own pages.
Made by Warmy.io · checked Oct 18, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Warmy’s own pages, its app-store listings and our grades. Every fact in it is on Warmy’s page too, where it is kept up to date. Checked Oct 18, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.4
GPA, above 6 of the 15 other email verification and deliverability tools we grade
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.
To get you started, here are 9 things to know about Warmy, taken from its own pages and our grades.
There's a lot to take in, from warm-up volume to DNS records and seed tests.
- 1
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.
- 2
Paid plans start at $49 a month
As its pricing page puts it: $49 per month and up.
- 3
You can try it first
7-day free trial of any package, no credit card required
- 4
It runs on Web
Web, with a browser extension too.
- 5
Warm-up network
Domains and IPs warm up with real business or consumer mailboxes, sending during working hours in the recipient's time zone.
- 6
US seed list
More than 500,000 US seed mailboxes, rotated monthly, open and reply to your sends and move them out of spam.
- 7
Verification and DMARC tracker
List verification and SPF, DKIM and DMARC monitoring are included on every plan, with the exact record to change.
- 8
A 2.4 GPA, above 6 of 15
That is against the other email verification and deliverability tools we grade, on value, the free plan, features, ease of use and platforms.
- 9
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.
Warmy at a glance
- Pricing
- Free trial, from $49 per month and up
- Free plan
- No
- Free trial
- 7-day free trial of any package, no credit card required
- Runs on
- Web, Browser extension
- Made by
- Warmy.io
- Category
- Email Verification & Deliverability
- Our grade
- 2.4 GPA, fair
The report card
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.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | C | From $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. |
| Free plan and trial | C | No free plan, but a 7-day trial of any package with no card, and every feature is open during it. |
| Features | B | It 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. |
| Ease of use | C | No 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. |
| Platforms and integrations | B | Web 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. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
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 it 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
Good to know
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.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$49
A month to start
Warmy is a paid product with a free trial, starting at $49 per month and up.
B2B sender
$49
per 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
$49
per 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.
Trying it first
7-day free trial of any package, no credit card required
Read from warmy.io on Oct 18, 2026.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
2
Places it runs: Web and Browser extension
Email warm-up with seed testing, verification and DMARC monitoring. Here is what it does, as its own site describes it, and what it covers: public API, AI features, email verification, inbox warm-up, dMARC.
- 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.
Where it runs
- Web
- Browser extension
What it works with
- Klaviyo
- Shopify
- Mailchimp
- HubSpot
- SendGrid
- Amazon SES
- Google Postmaster Tools
- Zapier
Warmy is made by Warmy.io.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
6/15
Other email verification and deliverability tools it is graded above
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
- CFree plan and trialAbove 2 of 15
- BFeaturesAbove 14 of 15
- CEase of useAbove 0 of 15
- BPlatforms and integrationsAbove 3 of 15
Price against what you get
Each dot is one of 8 email verification and deliverability tools. Further left costs less; higher up scores better on features, ease of use and platforms. Warmy is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
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.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
MailReach, Warmup Inbox, InboxAlly, GlockApps and EasyDMARC
The 5 tools Warmy is most often weighed against, with where each one differs from it.
- 1.8GPA
MailReach
From $20/mo
Email warm-up and inbox placement tests, priced per mailbox.
- Only Warmy lists a browser extension.
- Warmy also covers email verification and dMARC.
- 2.4GPA
Warmup Inbox
Free trial · from $15/mo
Email warm-up through a network of real inboxes, priced per inbox.
- Only Warmy lists a browser extension.
- Warmy also covers email verification and dMARC.
- Warmup Inbox also covers email campaigns.
- 2.0GPA
InboxAlly
Free trial · from $149/mo
Email warm-up and reputation repair through a network of seed inboxes.
- Only Warmy lists a browser extension.
- Warmy also covers email verification and dMARC.
- 2.2GPA
GlockApps
Free plan · from $59/mo
Inbox placement testing with DMARC analytics and uptime monitoring.
- GlockApps has a free plan. Warmy does not, though it has a free trial.
- Only Warmy lists a browser extension.
- Warmy also covers email verification and inbox warm-up.
- 2.0GPA
EasyDMARC
Free trial · from $35.99/mo
DMARC setup, reporting and managed SPF, DKIM and BIMI records.
- Only Warmy lists a browser extension.
- Warmy also covers email verification and inbox warm-up.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
13
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
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.
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.
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.
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.
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.
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.
Where this guide comes from
The prices, plans, platforms and features were read from Warmy’s own pages on Oct 18, 2026, and the grades were given on Oct 18, 2026. 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.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Warmy.io. Prices change, so check warmy.io before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
2,281
Tools graded, in 73 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
ToolGPA is free to read. It may earn a commission from affiliate links and it works with sponsors, but anything paid for is labelled and no one can pay for a grade. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
2,281
tools graded
73
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Warmy, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/warmy
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Warmy: The Insider's Guide", checked Oct 18, 2026. https://toolgpa.com/tools/warmy
Know someone choosing between email verification and deliverability tools?
Send them this guide: toolgpa.com/tools/warmy/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded email verification and deliverability tools after Warmy, each with an Insider's Guide of its own.
- Email Verification & Deliverability Insider's GuideEvery one of the 16 email verification and deliverability tools we grade, compared
- DeBounce Insider's GuideEmail list validation with credits from $15 that never expire2.6 GPA
- Bouncer Insider's GuideEmail list verification with credits that never expire2.4 GPA
- Clearout Insider's GuideEmail verification, email finder and form checks on one credit balance2.4 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Warmy’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. ToolGPA uses affiliate links and may earn a commission from them, and it works with sponsors; anything paid for is labelled, and no one can pay for a grade. Warmy is a trademark of its owner, and this guide is not made, paid for or approved by Warmy.io. Prices and plans change: check warmy.io before you buy.