There's a free spam test on its website, which is how most people try the mailgenius spam checker as an email deliverability test. Paid plans start at $23 a month, billed yearly, for 60 tests, or $39 for unlimited.

Side-by-side comparison

Warmy vs MailGenius: Email Deliverability Tools Compared (2026)

Q: Does MailGenius show inbox placement?

Its pricing page says test results include inbox placement. What it doesn't publish is which providers are covered (mailgenius gmail results included or not) or how the mailgenius inbox placement result is measured. Warmy's placement tests show Inbox, Promotions and Spam counts by provider, including Gmail.

Q: How does the MailGenius spam test work?

You copy a unique test address from the MailGenius website, send your email to it from your usual mail client or platform, and open the report. It covers authentication, blacklists, links, content and the subject line, and suggests fixes.

Q: What is a good MailGenius score?

A high score means the test found no problems in the areas it checks. It doesn't mean the email will reach the inbox, because sender reputation counts too. Run a placement test to see where your emails actually land.

Q: Does Warmy show Gmail Promotions placement?

Yes. Warmy's campaign placement tests show how many emails landed in Promotions, broken down by provider, Gmail included.

Q: Does MailGenius monitor DMARC?

MailGenius checks SPF, DKIM and DMARC in each test and has free DNS checkers. Ongoing DMARC report monitoring isn't listed on its pricing page. Warmy includes DMARC monitoring in every plan.

Q: Does MailGenius have an API?

Yes, it offers an API and white-label access through RapidAPI. Warmy includes a full API on every plan.

Q: Can I use MailGenius and Warmy together?

Yes. Some teams check copy in MailGenius before sending and use Warmy for warmup, seed engagement and placement tracking. That said, Warmy has its own free tools for content checks, so many teams don't need both.

Q: Which is better for agencies?

Warmy gives agencies up to 50 client workspaces with warmup, testing and monitoring. MailGenius's $79 plan lets agencies test emails from any domain and test prospects' emails as part of a sales pitch.

By the Warmy deliverability team Updated November 2026 7 min read

MailGenius facts checked against its own website, November 2026

Book a Demo Get a 7-Day Trial

No Credit Card Required | Cancel Anytime

real warmup mailboxes: 1M+; real warmup mailboxes
US seed accounts: 500K+; US seed accounts
per month, billed monthly: $49; per month, billed monthly
human support: 24/7; human support

MailGenius is a testing tool. You fire off an email to a test address it gives you, and back comes a report with a score, checks on authentication, blacklists, links and content, some AI copywriting suggestions and (per its pricing page) an inbox placement result. Paid plans are $23, $39 or $79 a month if you pay for the year.

Warmy is a deliverability platform, with plans from $49 a month. Run one of its placement tests and you'll see how many emails hit Inbox, Promotions or Spam at each provider, Gmail too. Then there's everything around the test: automated warmup across 1M+ mailboxes, a seed list of 500,000+ US accounts, DMARC monitoring, and a deliverability expert assigned to you.

Quick verdict: if all you need is lots of cheap checks on single emails, MailGenius does that well. Getting a clean score and still missing the inbox? Then the email probably isn't the problem anymore, and Warmy is the better fit.

KEY TAKEAWAYS

MailGenius vs Warmy at a Glance

Main job

Warmy: Test placement and improve sender reputation

MailGenius: Test individual emails and explain what to fix

Starting price

Warmy: $49 a month, billed monthly

MailGenius: $23 a month, billed yearly

Email warmup

Warmy: Included in every plan

MailGenius: Not offered

Placement results

Warmy: Inbox, Promotions and Spam by provider, including Gmail

MailGenius: Included in each test report

Expert help

Warmy: Dedicated deliverability expert and 24/7 support in every plan

MailGenius: Paid deliverability consulting

SIDE BY SIDE

Warmy vs MailGenius: Feature Comparison

A test shows you how one email looks to spam filters today. Warmy keeps working on the reputation behind every email you send, long after the test is done.

Feature comparison of Warmy and MailGenius
Criterion	Warmy	MailGenius
Positioning	All-in-one, self-serve email deliverability platform	Email testing with AI deliverability advice and consulting
Email warmupKey difference	1M+ real mailboxes; choose a B2B (Google Workspace, Microsoft 365) or B2C (Gmail, Yahoo, Outlook) network	Not offered
Seed list engagementKey difference	500,000+ real US seed accounts, desktop and mobile, rotated monthly; they open, rescue from spam, scroll and click your real campaigns	Not offered
Email tests	5–50 placement tests a month by plan, plus scheduled auto-tests	60 tests a month (Beginner), unlimited (Genius), every sent email tested automatically ($79 plan)
Placement results	Inbox, Promotions and Spam counts by provider, including Gmail	Inbox placement included in test results
Authentication	DMARC monitoring with SPF, DKIM and DMARC checks	SPF, DKIM and DMARC checks in each test; free SPF, DKIM, DMARC, BIMI, MX and TXT checkers
Blacklist monitoring	Blacklist alerts as part of domain and IP reputation tracking	Blacklist check in each test; monitoring and alerts for unlimited domains on the $79 plan
Google Postmaster	Built in	Not listed
Email verificationKey difference	Built in	Not listed
AI	Adeline AI co-pilot and Templates AI optimizer	AI deliverability consultant and AI copywriting analysis and rewrite
Competitor email testing	—	Included from the Genius plan
API	Full API on every plan, plus n8n, Zapier and Make	API and white-label via RapidAPI
Expert helpKey difference	Dedicated deliverability expert and 24/7 human support on every plan	Paid deliverability consulting
Agencies	Up to 50 client workspaces	Test any domain on the $79 plan
Pricing	From $49 a month, billed monthly	From $23 a month, billed yearly

MailGenius details come from its public website, checked November 2026 (see sources). MailGenius is a trademark of its respective owner.

Start free trial Talk to an expert

No Credit Card Required | Cancel Anytime

PRICING

MailGenius vs Warmy Pricing

Warmy offers five plans. MailGenius offers three, 20% cheaper if you pay yearly.

Warmy and MailGenius pricing compared
Pricing detail	Warmy	MailGenius
Starting price	$49 / month	$23 / month (billed yearly)
Billing	Monthly	Yearly (−20%) or monthly
Plans	Starter100 warmup emails/day · 5 tests/mo$49 Business300 warmup emails/day · 10 tests/mo$129 Premium1,000 warmup emails/day · 25 tests/mo$189 Expert2,000 warmup emails/day · 50 tests/mo$279 Platinum5,000 warmup emails/day · 50 tests/mo$429	Beginner60 tests/month$23 GeniusUnlimited tests$39 Automatic Testing & MonitoringEvery email tested · blacklist alerts$79
Placement tests	Included in every plan	Spam tests; results include inbox placement (details not published)
Also included	Google Postmaster integration, API access, custom warmup settings, agency dashboard, Deliverability Academy, private community. 7-day free trial, no credit card.	AI copywriting analysis, cold email guide

Prices in USD from each vendor's public pricing page, checked November 2026. They do change now and then, so check the vendor's site before you buy.

THE VERDICT

When to Choose Warmy vs MailGenius

MailGenius is a good way to see how a single email looks before you hit send. Warmy is built for what tends to show up after that check passes: a sending reputation that keeps putting good emails in the wrong folder.

If you want…: Choose
To improve sender reputation, not only test emails: Warmy
Placement counts by provider, including Gmail's Promotions tab: Warmy
DMARC monitoring and email verification in the same plan: Warmy
A dedicated deliverability expert without paying per session: Warmy
Cheap, unlimited checks of individual emails: MailGenius
To test competitors' or prospects' emails: MailGenius

Where MailGenius Has the Edge

On price, for testing alone, MailGenius wins. You pay $23 a month for 60 tests or $39 for unlimited, billed yearly, and there's a free test on its website. The $79 plan tests every email you send without you lifting a finger and watches blacklists for as many domains as you add. If your content is the weak spot, the AI copywriting rewrite is handy. And for agencies, being able to test a competitor's or prospect's emails makes a decent sales tool.

Pros and Cons

Warmy

Pros

Warmup, seed engagement and placement tests in one plan
Placement counts by provider, including Gmail's Promotions tab
DMARC monitoring and email verification included
Dedicated expert and 24/7 support

Cons

Higher entry price than MailGenius Beginner
No competitor email testing

MailGenius

Pros

From $23 a month, unlimited tests at $39
Every sent email tested on the $79 plan
AI copywriting rewrite
Free spam test on its website

Cons

No email warmup or seed engagement
DMARC monitoring and email verification not listed
Expert help is a paid service

Try Warmy's free Email Deliverability Test or Template Checker, then start a 7-day free trial.

SOCIAL PROOF

What Senders Are Saying about Warmy

Rated 4.9/5 on G2 and trusted by 35,000+ happy businesses: marketers, entrepreneurs, and affiliates.

Testimonials

Loved by senders who live in the inbox

“If you do cold email, Warmy will increase your efficiency, improve your deliverability, and cut your costs.”

Thomas TzouridisCEO, ActiScale

“Warmy has been a game changer for us. The platform pays for itself many times over.”

Darren PrineCo-founder and CRO, Cloud Tech Gurus

“I’ve purchased many marketing tools before. Often, once you buy, you’re on your own. With Warmy, they care about you.”

Gábor MajerFounder, Nord Sales Company

MailGenius and Warmy in Brief

What Is MailGenius and How Does the MailGenius Spam Test Work?

MailGenius (you'll sometimes see it written mail genius) is an email testing tool built by a deliverability consulting team. There isn't much to running a test. Grab the unique test address on mailgenius com, send your email there from whatever client or platform you normally use, then open the report.

In that report you'll find a score along with your mailgenius spf, mailgenius dkim and mailgenius dmarc results. It also looks at reverse DNS, blacklists, links, your subject line and the body copy. Paid plans add an AI deliverability consultant and AI copywriting rewrites, and its pricing page says each report includes an inbox placement result too. That's the core of the mailgenius email deliverability offer.

Outside of testing, MailGenius has free DNS checkers (SPF, DKIM, DMARC, BIMI, MX, TXT and a blacklist checker), automatic testing and blacklist monitoring on its top plan, an API through RapidAPI, and paid deliverability consulting.

What Is Warmy?

Warmy is an email deliverability platform that pairs testing with the slower work of actually improving placement. You pick a B2B or B2C focus, and your mailboxes warm up inside a network of 1M+ business or consumer mailboxes, on a schedule that sends during working hours in the recipient's time zone.

Every plan adds a 500,000+ US seed list that engages with your real campaigns, placement tests showing Inbox, Promotions and Spam counts by provider, DMARC monitoring, domain and IP reputation tracking, Google Postmaster Tools data, email verification and a full API. You also get a dedicated deliverability expert, backed by 24/7 human support.

Spam Score vs Inbox Placement Test: What Each One Tells You

People mix these two up all the time. A spam test email gets you a score (a mailgenius score, for example) based on the message itself and your technical setup, so you can see what a filter might complain about. A placement test sends your campaign to real mailboxes and reports back which folder it landed in. Both are worth having. Neither is a guarantee.

Spam score test vs inbox placement test
	Spam score test	Inbox placement test
What it measures	Spam score testSignals in the email and its setup that spam filters may react to	Inbox placement testThe folder test emails actually landed in
What it checks	Spam score testAuthentication, blacklists, links, content, subject line	Inbox placement testInbox, Promotions and Spam at each mailbox provider covered
A good result means	Spam score testThe test found no problems in the areas it checks	Inbox placement testThe test emails reached the inbox in the test mailboxes
It doesn't guarantee	Spam score testThat your email reaches the inbox, since sender reputation is a separate question	Inbox placement testThe same result for every recipient on your list
Best used for	Spam score testFixing content and setup before you send	Inbox placement testTracking real placement over time and after changes

Looking for a free email spam score checker?

Warmy's Template Checker and SpamAssassin Checker look at your content, and the Email Deliverability Test shows where you land.

Email Warmup Process

Warmy runs warmup through the email provider you already use, on a protected network of more than a million real inboxes. Emails only go out while the recipient would be at work (their time zone, not yours). Volume starts small and grows, and it goes quiet at night and on weekends, the way a real person's sending would. Whoever receives them opens them, writes back, flags them as important, and if one lands in spam, moves it out. Auto-archive keeps all of it out of your inbox.

How MailGenius does it

it doesn't offer warmup. It tests emails and recommends fixes, and its consulting team can advise on reputation.

Why it matters: a perfect test score won't give a new domain any sending history. That only comes from gradual volume and positive engagement.

Using Seed Lists

On top of warmup, Warmy gives you a seed list: 500,000+ US accounts spread over Gmail, Outlook, Yahoo, corporate and regional providers, some of them mobile seeds on real US devices. You add the list to your campaign sends. The seeds open what you send, pull it out of spam if that's where it went, scroll through it and click the links. Every month the list gets rotated.

How MailGenius does it

its test address receives your email so it can analyze it, and that's where its part ends. Nothing on the MailGenius side interacts with your actual campaigns.

Why it matters: an analysis is basically a to-do list. Providers decide how to treat your next emails by watching how real accounts react to this one, and only engagement moves that needle.

Authentication and Sender Reputation

Authentication comes first. Google's sender requirements are built around SPF, DKIM and DMARC, so those have to be right. With Warmy's DMARC monitoring you can see every source sending as your domain, which of them fail, and the exact record you'd need to fix. Reputation for your domain and IPs is tracked the whole time, and if a signal drops, you hear about it.

How MailGenius does it

each test report includes SPF, DKIM, DMARC and blacklist checks. There are free DNS checkers as well, and on the $79 plan, blacklist monitoring runs automatically for as many domains as you like.

Why it matters: checking per email only catches a broken record if you happen to test right then. Records break between tests too, which is what ongoing DMARC monitoring is for.

Measuring Results

Each Warmy placement test gives you counts for Inbox, Promotions and Spam, split by provider (Gmail is in there). Schedule auto-tests and there's always a fresh baseline waiting. Keep the template and the provider mix the same from one test to the next; change them and you're comparing apples with oranges. Most of your list on one provider? Then that provider's row is the one to watch before you push more volume.

How MailGenius does it

every email you send to its test address comes back scored, with fixes listed. Inbox placement shows up in that report too.

Why it matters: not being in spam doesn't mean anyone's reading. Gmail's Promotions tab swallows a lot of mail. With Promotions counts per provider, you know whether you actually made it to Primary, and Primary is where people read.

Why Can an Email Pass a Spam Test and Still Land in Spam?

This happens a lot. An email passes SPF, DKIM and DMARC, has no suspicious links and gets a high spam score. Gmail still sends the campaign to Spam. The test looked at the email and its setup. What it couldn't see: a brand-new domain, a thin sending history, a reputation hit from some earlier campaign. Gmail sees all of that, and that's usually the real reason.

Start by measuring it. Run a placement test and check Inbox, Promotions and Spam counts by provider, including Gmail.
Check reputation data. Open Google Postmaster and your DMARC reports. You're looking for failed authentication, complaints, or reputation sliding.
Then fix things. Correct any failing records and clean the list. On a blacklist? Sort out why first, then ask to be delisted.
Rebuild, if it comes to that. Switch on warmup (B2B or B2C network) and include the seed list in your sends, so positive engagement can build back up. This takes weeks. Not days.
Test again. Scheduled placement tests show whether things are getting better, and your deliverability expert goes over them with you.

Start your 7-day trial Talk to a deliverability expert

FAQ

Warmy vs MailGenius FAQ

1. Does MailGenius offer email warm up?

No. MailGenius tests emails and offers deliverability consulting, but it doesn't warm up mailboxes, so there's no mailgenius email warm up feature to compare. Warmy warms up mailboxes on a network of 1M+ business or consumer inboxes.

2. Does MailGenius show inbox placement?

3. How does the MailGenius spam test work?

4. Is MailGenius free?

5. What is a good MailGenius score?

6. Does Warmy show Gmail Promotions placement?

7. Does MailGenius monitor DMARC?

8. Does MailGenius have an API?

9. Can I use MailGenius and Warmy together?

10. Which is better for agencies?

11. Does Warmy have a free email spam checker?

12. What are the best MailGenius alternative tools?

SOURCES & METHODOLOGY

How We Checked This Comparison

Every MailGenius detail on this page comes from MailGenius's own website: its pricing page, menu and footer, checked November 2026. Where MailGenius doesn't explain how a feature works, such as the inbox placement result in its reports, we say that instead of guessing. Warmy details come from Warmy's pricing and product pages. We haven't tested MailGenius hands-on, so we don't claim either tool gets better results than the other.

Evidence labels:

Verified from official pricing (prices, test limits, plan features)Vendor-reported (network and seed list sizes)Not independently tested (placement results)

Disclosure: Warmy publishes this comparison and is one of the two products in it. We've tried to keep it fair, and that includes saying where MailGenius is the better choice. Spot something out of date? Tell us and we'll fix it.

Sources