- You want spam testing, inbox placement, client previews, an AI eye-tracking heatmap and an AI assistant in one plan: free tier with no card, paid from $5/mo
- You send below enterprise volume. Validity says Engage is built for enterprise marketing organizations running email at scale, and it gates even the free assessment to companies that fit its qualification criteria
- You want to start today, not in a sales cycle: Unspam results arrive in about 30 seconds, while Engage is quote-only and provisions each included product through an assigned account manager
- You want published, predictable pricing with a 14-day no-questions-asked refund instead of negotiated annual contracts
A Validity Everest alternative that starts free, not with a sales qualification form
Validity Everest is an enterprise deliverability platform (seed-list placement, reputation and DMARC monitoring) sold on sales-quoted annual contracts. Validity has retired the standalone Everest product page and now sells it as the Inbox Placement and Deliverability capability of Validity Engage, the platform that also absorbed Litmus. Unspam covers spam testing, inbox placement, client previews and AI heatmaps in one self-serve plan, free to start.
Compared from public pricing and product pages, September 2026.
Which one fits you?
- You need DMARC report monitoring wired into reputation tracking across 140 ISPs, with compliance alerts. Everest is built that way; Unspam collects DMARC reports on its own, but tracks no sender reputation and no blocklists
- You need the largest seed network and certification: Validity claims 140 ISPs worldwide and the largest global seedlist, tests across 90+ email providers, and sells Sender Certification as a separate allowlisting service. Unspam's placement tests cover 10 seed mailboxes at 7 providers and there is no certification programme
- You are a high-volume enterprise sender with a dedicated deliverability function and budget for a quote-only annual contract plus prepaid Engage Credits
Why teams move from Validity Everest to Unspam.
Pricing you can actually see
Everest has no published prices: its pricing page now redirects to Litmus, which lists no dollar amounts. Vendr contract data puts Everest Professional at ~$36,828/yr list (median negotiated ~$22,500/yr) and Enterprise from ~$106,000/yr. Unspam publishes every plan: free tier, paid from $5/mo, 14-day refund.
Previews and heatmaps without switching to Litmus
Everest's deliverability module has no heatmap, and client previews and spam-filter content testing now sit on the Litmus side of the merged platform. Unspam bundles spam scoring, seed-list placement, previews and AI eye-tracking heatmaps in one plan, including the free one.
Sized for normal sending volumes
Multiple 2026 reviews say Everest 'becomes overwhelming without a dedicated resource' and is a poor fit under ~500K emails/month, with G2 reviewers calling the price steep and reporting days-long support responses. Unspam takes about 30 seconds per test and needs no onboarding call.
Unspam vs Validity Everest, feature by feature.
Based on public product pages and documentation. Spotted something outdated? Tell us in the chat and we'll fix it.
Feature
Unspam
Validity Everest
Free plan or trial
Free plan, no card
No free plan
First paid plan
$5/mo minimum, usage-priced
Custom (no published price)
Spam score testing
Yes
Partialvia Litmus QA
Inbox placement tests
Yes
Yes
Client previews & screenshots
Yes50+ clients, light & dark
Partialvia Litmus, not Everest
AI attention heatmap
Yes
—No
Blacklist monitoring
Partialon-demand checker
Yes
SPF / DKIM / DMARC checks
Yes
Yes
AI fix recommendations
Yes
PartialLitmus Assistant
Scheduled automatic tests
Yesplacement + spam score
Yes
Scheduled spam score tests
Yesdaily, weekly, or monthly
Partialvia Litmus QA
Sender accounts
YesUnlimited
—No
API access
YesCustom plan
Partialqualified customers only
MCP server
YesCustom plan
—No
Email verification
Yes
Yes
Automated inbox warmup
—No
—No
DMARC report monitoring
YesCustom plan, first domain free
Yes
Deliverability consulting
Yesseparate service
Yesprofessional services
Comparison based on publicly available information as of September 2026. Features and pricing change frequently, so please verify current details on each provider's website.
What each one costs.
Validity no longer publishes Everest pricing and has retired the Everest product page: /everest/ now 301s to the Validity Engage Inbox Placement & Deliverability capability page, and the legacy /everest/pricing/ URL still 301s to litmus.com, which routes on to contact-sales. Engage is quote-only, sold as one subscription plus prepaid Engage Credits, with Sender Certification and professional services excluded from it. No dollar figure is published anywhere on validity.com or litmus.com.
- Free $0
5 spam tests, 3 inbox placements, 3 device previews, 5 screenshots, 5 heatmaps per month. AI assistant included.
- Custom $5/mo
Pay per test: spam tests $0.18, inbox placements $0.50, device previews $0.75, screenshots $0.20, heatmaps $0.30. Volume discounts to 30%, 15% off annual, $5 monthly minimum. API, MCP and three years of history included. DMARC monitoring is $6 per domain per month, first domain free.
- Validity Engage Contact sales
One subscription including Litmus, Deliverability & Analytics (aka Everest), BriteVerify, UFBL, Mail Charts and Competitive Intelligence; API access for qualified customers only
Sender Certification and professional services are excluded from the subscription.
- Engage Credits Contact sales
Prepaid credits for the AI and agentic capabilities: platform chat, Strategy Consultant, deliverability monitoring and alerting, rendering previews, contact data validation
Median negotiated price ~$57,558/yr, per Vendr contract data.
- Litmus Enterprise + Deliverability Contact sales
Litmus platform with optional Deliverability upgrade that 'includes access to Everest'
Pricing unpublished.
Validity Everest pricing and feature information was collected from publicly available sources in September 2026 and may have changed since; it is provided for general comparison only and is not guaranteed to reflect current offers. Confirm current pricing on the vendor's website. Validity Everest is a trademark of its respective owner. Unspam is not affiliated with or endorsed by Validity Everest.
Unspam vs Validity Everest, answered.
Is Unspam a full replacement for Validity Everest?
For pre-send testing (spam scoring, inbox placement, previews, heatmaps, blacklist and auth checks), yes, and DMARC monitoring is on Unspam's Custom plan too. What Everest still has to itself is Sender Certification and continuous reputation tracking across its ISP network. If either is core to your setup, Everest still earns its keep. Unspam also offers deliverability consulting as a separate service if you want hands-on help.
How do the prices compare?
Everest is sales-quoted: Vendr contract data shows Professional at ~$36,828/yr list (median negotiated ~$22,500/yr) and Enterprise from ~$106,000/yr, with no prices published officially as of mid-2026. Unspam starts free and paid pricing starts at $5/mo, charged per test, with a 14-day refund and 15% off annual billing. Everest sits at the top of an unusually wide market, and the tools at the cheaper end answer most of the same authentication, content and blocklist questions.
What is the biggest functional difference?
Everest is continuous enterprise monitoring: thousands of seeds across 140 ISPs, reputation and blocklist tracking, DMARC report collection, Sender Certification. Unspam is pre-send testing with scheduled placement and spam-score checks and DMARC monitoring on top: spam score, placement across 7 providers, previews and AI heatmaps, with results in about 30 seconds.
Does Validity Everest have a free tier like Unspam?
No. Everest is sold on annual contracts, and the older self-serve Elements tiers cited by third-party reviews appear discontinued after the Litmus merger. Unspam's free plan includes 5 spam tests, 3 inbox placements, 3 device previews, 5 screenshots and 5 heatmaps per month, with the AI assistant included and no credit card required.