One-on-one deliverability consultationBook
Warmy logovsValidity logoSide-by-side comparison

Validity vs Warmy: Enterprise Deliverability Compared (2026)

By the Warmy deliverability team Updated 7 min read

Validity facts checked against its own website, October 2026

Book a DemoGet 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

Validity (the company behind Everest, Sender Score, and BriteVerify) sells deliverability as part of Validity Engage, an enterprise platform with placement testing across 90+ providers, Sender Score reputation monitoring, and authentication and blocklist alerts. Pricing isn't published; it's quote-only.

Warmy gives growing teams self-serve deliverability from $49/month, billed monthly: placement tests, DMARC and reputation monitoring, and something Validity doesn't list — active warmup on a 1M+ mailbox network with a 500,000+ US seed list.

Key takeaways

Validity vs Warmy at a glance

Warmy pricing
Five published plans from $49/month to $429/month, billed monthly. 7-day free trial, no card.
Validity pricing
Not published. Validity Engage is sold through sales.
Warmup
Warmy warms up mailboxes and domains. Validity focuses on testing and monitoring, not warmup.
Testing
Both offer seed-based placement tests. Validity tests across 90+ providers.
Getting started
Warmy is self-serve in minutes. Validity starts with a sales conversation.

Side by side

Warmy vs Validity

Validity is built for enterprise email programs. Warmy gives the core of that toolkit, plus warmup, with transparent monthly pricing.

  • Positioning

    WarmyAll-in-one, self-serve email deliverability infrastructure
    ValidityEnterprise deliverability inside the Validity Engage platform

  • Email warmup

    Warmy1M+ real, protected Google Workspace, Microsoft 365, and B2C mailboxes
    ValidityNot listed

  • Seed list

    Warmy500,000+ real US seed accounts, desktop and mobile; rotated monthly; speeds up warmup
    ValidityValidity Intelligence Network for placement testing

  • Inbox placement testing

    WarmyIncluded: 5–50 tests/month by tier, with automated testing
    ValidityReal-time placement testing across 90+ providers

  • Reputation monitoring

    WarmyDomain/IP reputation tracking, blacklist alerts, spam-placement reports
    ValiditySender Score monitoring across IPs and domains

  • Authentication tools

    WarmySPF, DKIM, and DMARC tracking, record checks, and DMARC report analysis
    ValidityAuthentication and alignment monitoring

  • Blocklist monitoring

    WarmyBlacklist alerts
    ValidityBlocklist monitoring with removal guidance

  • Email verification

    WarmyBuilt-in
    ValidityVia BriteVerify (Validity product)

  • AI

    WarmyAdeline AI co-pilot and AI template optimizer
    ValidityAI-powered deliverability features

  • Pricing

    WarmyFrom $49/month, billed monthly
    ValidityNot published; contact sales

  • Free trial

    WarmySeven days, no credit card required
    ValidityNot listed

  • Setup

    WarmySelf-serve setup in minutes via OAuth or SMTP/IMAP
    ValiditySales-led onboarding

Validity details come from its public website and help pages, checked October 2026 (see sources). Validity is a trademark of its respective owner.

Start free trialTalk to an expert

No Credit Card Required | Cancel Anytime

01

Email warmup process

Warmy email warmup runs through your existing provider on a protected network of over a million real Google Workspace, Microsoft 365, and consumer inboxes. It sends during working hours in the recipient's time zone, ramps up gradually, and slows down at night and on weekends.

Warmy simulates natural engagement: it opens, replies, marks emails as important, and rescues them from spam. You can choose warmup providers and use your own templates and topics in 30+ languages. Auto-archive keeps warmup messages out of your inbox.

How Validity does itValidity's deliverability pages focus on testing and monitoring. They don't list an email warmup feature.
02

Using seed lists

Warmy adds a 500,000+ US seed list across Gmail, Outlook, Yahoo, corporate, and regional providers, including mobile seeds on real US devices.

Send your campaigns to the list and the seed accounts open emails, move them out of spam, scroll, and click links. Combined with peer-to-peer warmup, this warms new mailboxes and domains much faster than warmup alone.

How Validity does itValidity uses its Validity Intelligence Network to test placement across 90+ email providers.
03

Authentication and sender reputation

Start with authentication. SPF, DKIM, and DMARC are the core protocols in Google's sender requirements.

Warmy's DMARC monitoring shows who is sending as your domain, what fails, and the exact record to change. Free SPF and DMARC generators create correct records in minutes, and domain and IP reputation is tracked continuously with alerts when a signal drops.

How Validity does itValidity tracks Sender Score across IPs and domains and monitors authentication and blocklists.
04

Measuring results

Warmy's placement tests run outside the warmup network and break results down by provider, showing inbox, Promotions, and spam. Scheduled auto-tests keep a fresh baseline.

Keep the template and provider mix consistent between tests. If most of your recipients use Microsoft 365, watch those results before raising volume, even when the overall score looks healthy.

How Validity does itValidity offers real-time placement tests, provider-specific insights, and pre-send checks.

Pricing

Validity vs Warmy Pricing

Warmy publishes five plans. Validity doesn't publish pricing for Engage; you request a quote.

Warmy and Validity pricing compared
Pricing detailWarmyValidity
Starting price$49 / monthQuote (not published)
BillingMonthlySet by contract
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
  • Validity EngageContact sales
Placement testsIncluded in every planPart of Validity Engage; allowance by contract
Also includedGoogle Postmaster integration, API access, custom warmup settings, agency dashboard, Deliverability Academy, private community. 7-day free trial, no credit card.Bundled with other Validity products by agreement

Prices in USD from each vendor's public pricing page, checked October 2026. Prices can change; confirm on the vendor's site before buying.

Social proof

What Senders Are Saying about Warmy

Rated 4.9/5 on G2 and trusted by 35,000+ businesses.

TESTIMONIALS

Loved by senders who live in the inbox

★★★★★5.0
“Warmy has been a game changer for us. The platform pays for itself many times over.”
Darren Prine
Co-founder and CRO, Cloud Tech Gurus
★★★★★5.0
“If you do cold email, Warmy will increase your efficiency, improve your deliverability, and cut your costs.”
Thomas TzouridisThomas Tzouridis
CEO, ActiScale
★★★★★5.0
“I've purchased many marketing tools before. Often, once you buy, you're on your own. With Warmy, they care about you.”
Gábor Majer
Founder, Nord Sales Company

The verdict

When to Choose Warmy vs Validity

Large enterprises with a procurement process may prefer Validity. For most teams, Warmy is faster to start and adds warmup.

Which tool to choose for each need
If you want…Choose
Transparent pricingPublished plans from $49/month, billed monthly. Warmy
To start todaySelf-serve setup in minutes and a 7-day free trial. Warmy
Warmup plus monitoringWarmy actively builds reputation as well as measuring it. Warmy
Hands-on expert help24/7 human support on every plan. Warmy
An enterprise suite under one contractValidity bundles deliverability with its other products.Validity

See your placement by provider in minutes: run a free deliverability test or start a 7-day free trial.

FAQ

FAQs

Validity sells enterprise deliverability testing and monitoring through Validity Engage, with pricing by quote. Warmy is self-serve from $49/month and adds warmup on a 1M+ mailbox network and a 500,000+ US seed list to testing and monitoring.

Sources & methodology

How we checked this comparison

Every Validity detail on this page comes from Validity's own public website and help pages, checked October 2026. Where a detail isn't published, we say "not disclosed" rather than guess. Warmy details come from Warmy's pricing page and product documentation. Spot something out of date? Tell us and we'll correct it.

  • Validity: Inbox Placement & Deliverability
  • Validity home page

See Warmy's warmup, monitoring, and deliverability tools in action

Book a free demo, or get a free 7-day trial (no credit card required) and see how Warmy can improve your email deliverability.

Book a free demoGet a free 7-day trial

Compare Warmy with Other Products

Want to learn about more tools like Validity and Warmy? See the comparisons of other email deliverability solutions:

See all comparisons