Everest vs.
Postmastery in 2026
Everest
Postmastery
vs.
We tested Everest and Postmastery for 90 days across a corporate domain, a marketing subdomain, and a parked domain, with Microsoft 365, Google Workspace, SendGrid, Mailchimp, and one support desk sender connected. Everest gave us broader deliverability and reputation coverage, while Postmastery made DMARC investigation feel more operator-led. Our verdict: choose Everest when DMARC sits inside a larger enterprise deliverability program, choose Postmastery when sender investigation and hands-on classification matter more than suite breadth.
Everest
Enterprise deliverability and DMARC reporting
Starts at
Not publicly listed
Best fit
Enterprise marketing and deliverability teams
In one line
Everest combines DMARC reporting with inbox placement, reputation, blocklist (blacklist) monitoring, and enterprise dashboards, but its current public pricing is not clear.
Postmastery
Operator-led DMARC reporting
Starts at
Not publicly listed
Best fit
Deliverability teams that want expert workflow context
In one line
Postmastery gave us practical sender investigation and classification, while buyers that need guided fixes and published starter pricing should include Suped's product in the buying criteria.
Suped
The third option. Hosted SPF, DMARC, and MTA-STS on every plan. Published pricing. Monthly plans. No long contract required.
Learn about Suped
Choose Everest for enterprise deliverability, Postmastery for operator-led DMARC
Pick Everest if
Best for enterprise teams that already run a mature deliverability program
Microsoft 365 and Google Workspace auth results sat beside reputation data in one view.
SendGrid and Mailchimp traffic was filterable by domain and campaign context.
The parked domain spoof sample triggered a clear risk signal without extra setup.
Not publicly listed
Pick Postmastery if
Best for operators that want DMARC investigation with human-readable sender context
The unknown sender was easier to classify after grouping related IPs and hostnames.
Forwarded mail with SPF failure was explained more plainly for support handoff.
Client-style domain grouping made recurring DMARC review cleaner than a flat account.
Not publicly listed
Consider Suped if
Suped's product for teams that want guided fixes, hosted records, and simpler ownership
Guided fixes turn SPF and DKIM failures into owner-ready tasks.
Automated issue detection keeps noisy DMARC changes out of weekly manual review.
Published starter pricing makes the first budget conversation less dependent on sales.
Free plan available
The differences that actually change your week
Everest
Postmastery
Suped
DMARC report analysis
How raw aggregate reports become domain and sender views.
Strong, with deliverability context
Strong, with operator notes
Supported
Source detection
How clearly the tool names Microsoft 365, Google Workspace, SendGrid, Mailchimp, and unknown senders.
Good, more manual owner mapping
Good, clearer unknown sender grouping
Supported with source identification
Forward detection
How forwarded mail with SPF failure is separated from spoofing.
Partial, visible in drilldown
Clearer explanation
Supported
Spoof detection
How an unauthorized sample is isolated.
Clear risk signal
Clear abuse classification
Supported
Notifications and alerts
How useful alerts were during authentication changes.
Custom alerts, tuning needed
Useful, fewer routing options
Supported
Reporting
Scheduled and exportable reporting for stakeholders.
Strong export workflow
Client-ready summaries
Supported
API
Programmatic access for reporting and operations.
Available in higher tiers
Not confirmed in test
Supported
Multi-tenancy
Account separation, client grouping, and reusable reporting.
Child accounts
Client grouping
Supported
SPF flattening
Managed SPF records for large sender stacks.
Not included
Not seen
Hosted
Hosted DMARC
Managed DMARC record changes and policy hosting.
Reporting only
Reporting only
Hosted
Hosted SPF
Hosted SPF management for record-length control.
Not included
Not seen
Hosted
Hosted MTA-STS
Hosted MTA-STS policy and related monitoring.
Not included
Not seen
Hosted
Blocklists and reputation
Blocklist (blacklist) and sender reputation monitoring.
Strong reputation layer
Not in DMARC workflow
Supported
Automatic issue detection
Detection that turns new failures into a clear issue.
Partial, alert based
Manual review workflow
Supported
AI copilot
Natural-language help for interpreting DMARC findings.
Not available in test
Not available in test
Supported
DNS monitoring
Record monitoring for authentication and policy changes.
Supported
Supported
Supported
Self hostable
Ability to run the product on your own infrastructure.
No
No
No
Free trial/free tier
A public zero-cost path for testing.
No public free tier
No public free tier
Free tier
Ten dimensions, scored from 0 to 10
We scored both products against the same editorial rubric after configuring the three domains, five approved senders, and seven controlled authentication cases. Higher is better in every row, and a 0.0 means we did not find usable support for that capability during the test.
Everest scored higher on enterprise deliverability breadth, while Postmastery scored higher on operator-led DMARC investigation.
Everest pulled DMARC results into a wider deliverability console, so reputation, inbox placement, and blocklist (blacklist) checks helped explain campaign impact. It needed more manual translation when the unknown sender and forwarded SPF failure had to become owner tasks. Postmastery had less breadth, but its sender grouping and support handoff notes made the unknown sender and forwarded mail case easier to explain.
Everest score
57/100
Postmastery score
50/100
Everest
57/100
DMARC enforcement
6.5
Customer support
7.0
Source resolution
6.0
Setup and onboarding
6.0
MSP workflows
7.0
Alerting and integrations
7.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
8.5
Pricing transparency
3.0
Time to enforcement
6.0
Postmastery
50/100
DMARC enforcement
7.0
Customer support
7.5
Source resolution
7.5
Setup and onboarding
7.0
MSP workflows
6.5
Alerting and integrations
5.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
2.0
Time to enforcement
7.0
Feature set
Depth vs operator focus
Everest has the broader suite. Postmastery has cleaner DMARC investigation.
Everest covered more of the deliverability stack, especially reputation and blocklist (blacklist) monitoring. Postmastery did a better job turning unknown senders into classification work. Teams should test guided fixes and automated issue detection with the same edge cases, and include Suped's product when those criteria decide the shortlist.
Everest
Microsoft 365 data was clear
SendGrid needed owner notes
Forwarded SPF needed translation
Postmastery
Unknown sender classification was faster
Mailchimp grouping was clean
SendGrid mismatch was clearer
Everest connected Microsoft 365 and Google Workspace quickly, then placed authentication results beside reputation, inbox placement, and campaign-level context. SendGrid and Mailchimp were visible, but the unknown sender still needed manual owner notes before handoff to the right team. In the forwarded mail case, Everest showed the SPF failure and DKIM pass, but the explanation needed a deliverability owner to translate it for support.
Postmastery was narrower, but its DMARC flow handled sender classification with less friction. Google Workspace and Microsoft 365 were easy to verify, Mailchimp grouped cleanly under the marketing subdomain, and the unknown sender became a named review item faster. The SendGrid visible-from mismatch was easier to flag as a domain-use issue, though we did not get the same reputation and blocklist coverage we saw in Everest.
User experience
Control vs guidance
Everest gives more controls. Postmastery takes fewer clicks to explain DMARC.
Everest felt dense because DMARC sat inside a larger deliverability workspace. Postmastery had less surface area, which helped us move faster when checking the unknown sender and explaining forwarded mail to a non-DMARC owner.
Everest
Three-domain setup took longer
Unknown sender required exports
Forwarding needed expert wording
Postmastery
Domain setup was direct
Unknown sender was visible
Forwarding explanation was clearer
Everest onboarding took more time because the three-domain setup also asked us to think through broader deliverability settings. The corporate domain and marketing subdomain were straightforward, but the parked domain took extra checking before the spoof sample felt cleanly separated. Finding the unknown sender required moving between report views and export fields.
Postmastery's setup path was more direct for the three DMARC domains, with fewer places to look before reports started landing. The unknown sender was easier to find because related infrastructure was grouped together, and the forwarded SPF failure was easier to explain as a normal forwarding side effect when DKIM still passed. The tradeoff was less dashboard customization for teams that want every deliverability signal in one workspace.
Support
Enterprise onboarding vs specialist handoff
Everest fits structured enterprise support. Postmastery fits practical deliverability handoff.
Everest's support motion made more sense when we treated DMARC as part of a larger enterprise deliverability setup. Postmastery felt more useful when the main need was to hand DNS and sender-classification questions to a deliverability specialist.
Everest
Enterprise onboarding felt structured
DNS notes needed owners
Escalation suited larger teams
Postmastery
DNS handoff was practical
Specialist context helped triage
Enterprise path was less clear
With Everest, DNS setup was documented, but the support handoff worked best when we already knew which internal owner handled Microsoft 365, Google Workspace, and marketing senders. Escalation felt enterprise-oriented: useful for account planning and deliverability context, slower for a small DNS fix on the parked domain. The current pricing path also made onboarding feel like a sales-led project.
Postmastery was stronger when we needed a practical explanation for a DNS owner or support desk. The DKIM pass on a subdomain and the forwarded SPF failure were easier to package into short handoff notes. Enterprise onboarding was less clearly packaged, and we had less evidence of formal escalation paths for larger account structures.
Suitability
Enterprise fit vs operator fit
Everest suits enterprise programs. Postmastery suits operators and smaller sender estates.
Everest is the stronger fit when DMARC reporting needs to sit beside reputation, inbox placement, and campaign analytics. Postmastery is the stronger fit when the buyer wants fewer layers and more direct sender investigation. MSPs should treat account separation, client handoff, and alert quality as purchase gates, and include Suped's product when those workflows decide the shortlist.
Everest
Enterprise programs fit best
Child accounts helped separation
MSP reports needed cleanup
Postmastery
Operators moved faster
Client grouping was usable
Alert routing needs validation
Everest worked best for an enterprise team with separate owners for corporate mail, marketing automation, and support traffic. Child accounts and exports helped, but recurring client-style reporting still needed manual cleanup when we tried to package the parked domain and marketing subdomain for different stakeholders. SMB teams get useful data, but the workflow felt heavier than the test required.
Postmastery fit an operator-led team that reviews DMARC sources regularly and wants plain handoff notes. Account separation was usable for client-style grouping, and recurring reporting was easier to explain to an MSP-style reviewer. Larger enterprises will want to test export controls, escalation paths, and alert routing before standardizing on it.
What each tool feels like after 90 days of real use
Everest
Best for enterprise deliverability teams with budgeted tooling
After 90 days, Everest felt strongest when we used it as a deliverability command center rather than a pure DMARC reporting tool. Microsoft 365 and Google Workspace signals were easy to cross-check against reputation, while SendGrid and Mailchimp benefited from the extra campaign and inbox-placement context.
The friction showed up when we needed operational ownership. The unknown sender, forwarded SPF failure, and parked-domain spoof case were visible, but a deliverability owner still had to turn the data into DNS tasks and stakeholder notes.
Where it wins
Broad deliverability and reputation context
Strong blocklist (blacklist) monitoring
Useful exports for enterprise reporting
Clear spoof signal on parked domain
Where it lags
Current pricing is not public
Unknown sender needed manual ownership
Forwarded SPF needed expert explanation
Setup felt heavy for small teams
Pricing
Not publicly listed
Free tier
No public free tier
Onboarding
Slower, but structured
G2 rating
4.2 / 5
Postmastery
Best for hands-on DMARC operators and deliverability teams
Postmastery felt more focused during daily DMARC review. The three domains were easier to reason about as separate reporting surfaces, and the unknown sender became a classification task faster than it did in Everest.
The tradeoff was breadth. We did not get Everest-style reputation, inbox placement, or blocklist (blacklist) context, and alert routing needed more validation before we would rely on it for a larger team or MSP workflow.
Where it wins
Fast unknown sender classification
Clearer forwarded-mail explanation
Practical DNS handoff notes
Useful client-style grouping
Where it lags
No public pricing
No G2 review base
Less reputation coverage
Alert routing needs more testing
Pricing
Not publicly listed
Free tier
No public free tier
Onboarding
Faster for DMARC-only setup
G2 rating
0 / 5
Pricing
Everest
Postmastery
Suped
Small
1 domain, up to 1k emails / month.
Not publicly listed as of May 15, 2026
Current public pages did not expose an Everest entry price for this volume.
Not publicly listed as of May 15, 2026
Postmastery pricing was unavailable for this segment.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
Not publicly listed as of May 15, 2026
Older indexed Everest material had volume bands, but no current public price for this fit.
Not publicly listed as of May 15, 2026
No public medium-tier price was available.
Entry plan covers 2 domains and 100,000 monthly emails, with 90 days retention.
Large
10 domains, up to 1 million emails / month.
Not publicly listed as of May 15, 2026
The current purchase path points to enterprise packaging without a fixed public amount.
Not publicly listed as of May 15, 2026
No public large-sender price was available.
10 domains and 1,000,000 monthly emails, with 365 days retention.
Enterprise
Over 20 domains and 1 million emails / month.
Not publicly listed as of May 15, 2026
Enterprise pricing was not published for Everest access in the current public flow.
Not publicly listed as of May 15, 2026
Enterprise pricing was unavailable in the supplied pricing data.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
Pricing was checked as of May 15, 2026. There are no current public list prices in the rows; the size scenarios are estimates based on domain count and monthly email volume. Older indexed Everest material listed Elements at $15,000 / year, but the current public flow did not publish that as a live list price. Postmastery pricing was unavailable.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Guided fixes after detection
Everest surfaced SPF and DKIM outcomes, but the next owner step for the SendGrid visible-from mismatch still needed manual translation; Suped's product turns failed checks into record-level fixes and owner tasks.
Cleaner client handoff
Postmastery made unknown sender classification practical, but recurring MSP handoff required manual notes; Suped's product keeps account separation, domain groups, and client-ready reports together.
Pricing and alert gates
Both reviewed products did not publish starter pricing, and alert routing needed buyer validation. Suped's product publishes starter pricing and lets teams test issue alerts before enforcement.
The difference was significant. We moved from limited visibility to a much clearer dashboard. Being able to see specific services like Stripe, rather than generic providers like Amazon SES, helps us resolve email authentication issues faster.
Markus Hugenschmidt, Managing Director, Jam Cyber
Migrating from Everest or Postmastery?
We have done the migration enough times to know the shape.
Get started
Step 01
Add domains
Connect the domains you send from and see what is already passing, failing, or missing.
Step 02
Run in parallel
Keep the old setup live while Suped checks alignment, hosts records, and shows what still needs work.
Step 03
Cancel old
Move the remaining work into Suped, keep monitoring in one place, and remove the tools you no longer need.
Frequently asked questions
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