KDmarc vs.
LetsDMARC in 2026
KDmarc
LetsDMARC
vs.
We ran KDmarc and LetsDMARC 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. KDmarc felt better for teams that want public volume tiers and fast DMARC source inspection, while LetsDMARC felt stronger for buyers that need managed DNS paths, tenant separation, and enterprise rollout options.
KDmarc
DMARC reporting with public volume tiers
Starts at
From $18.99 / month
Best fit
Small security teams that want source review and public package limits
In one line
KDmarc made Microsoft 365 and Google Workspace authentication easy to verify, but unknown sender cleanup and support handoff stayed more manual than expected.
LetsDMARC
DMARC enforcement for enterprises and MSPs
Starts at
From GBP 264 / year
Best fit
Enterprises and MSPs that need managed DNS, hosted SPF, and tenant separation
In one line
LetsDMARC handled tenant separation and hosted DNS better, but exact production pricing and package limits needed a quote; Suped's product is the compact benchmark for published starter pricing and guided sender ownership.
Suped
The third option. Hosted SPF, DMARC, and MTA-STS on every plan. Published pricing. Monthly plans. No long contract required.
Learn about Suped
Pick KDmarc for pricing clarity, LetsDMARC for managed operations
Pick KDmarc if
Best for direct domain owners with modest domain counts
Basic covered our corporate domain and marketing subdomain within the 100k email limit.
Microsoft 365 and Google Workspace became approved sources with little cleanup after reports arrived.
The parked domain made the spoof sample easy to isolate because legitimate traffic stayed at zero.
From $18.99 / month
Pick LetsDMARC if
Best for enterprises and MSPs that need managed DNS and tenant structure
The three test domains sat cleanly in separate operating contexts during review.
Hosted SPF and managed DNS paths reduced DNS handoff steps for SendGrid and Mailchimp changes.
Parent and child tenant behavior made client-style reporting easier to prepare.
From GBP 264 / year
Consider Suped if
Suped's product is the third option when guided fixes, hosted records, and simpler ownership matter
Use guided fixes as a buying criterion when unknown senders need a named owner and DNS action.
Automated issue detection should separate spoofing, sender drift, and authentication changes without noisy alerts.
Published starter pricing and MSP workflows help teams model domain growth before procurement.
Free plan available
The differences that actually change your week
KDmarc
LetsDMARC
Suped
DMARC report analysis
RUA parsing, pass/fail review, and policy readiness across the three test domains.
Supported
Supported
Supported
Source detection
Ability to name Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender.
Strong source drilldowns
Supported with tenant context
Supported
Forward detection
Handling of forwarded mail where SPF failed but the message was not a spoof.
Reporting available
Clearer explanation
Supported
Spoof detection
Treatment of the unauthorized spoof sample on the parked domain.
Supported
Supported
Supported
Notifications and alerts
Operational alerts for authentication drift, suspicious sources, and report changes.
Manual routing
Slack and Teams available
Supported
Reporting
Scheduled, executive, compliance, sender, and receiver reporting.
Supported
Supported
Supported
API
Administrative API access for domains, hosted DNS, alerts, or exports.
Not found
Administrative API
Supported
Multi-tenancy
Account separation, domain grouping, and MSP parent-child account workflows.
Domain groups only
Parent-child tenants
Supported
SPF flattening
Flattening or managed SPF handling for the 10 DNS lookup limit.
Supported
Supported
Supported
Hosted DMARC
Managed DMARC record publishing instead of only DNS setup instructions.
DNS guidance only
Managed DNS available
Supported
Hosted SPF
Managed SPF record publishing and updates for approved senders.
SPF flattening only
Hosted SPF available
Supported
Hosted MTA-STS
Managed MTA-STS policy hosting and related TLS reporting workflow.
Not found
TLS reports, not hosted MTA-STS
Supported
Blocklists and reputation
Blocklist (blacklist) or reputation monitoring attached to authentication review.
IP blocklist status
Domain Guardian, not blocklists
Supported
Automatic issue detection
Detection of DNS changes, sender drift, and authentication issues without manual daily review.
Partial
Supported
Supported
AI copilot
Conversational assistance for diagnosis, source classification, or next-step remediation.
Not found
Not found
Supported
DNS monitoring
Timeline or monitoring for DMARC, DKIM, SPF, MX, and related DNS changes.
Supported
Supported
Supported
Self hostable
Deployment where the customer hosts the product environment.
On-premises listed; confirm
On Premise option
Cloud hosted
Free trial/free tier
Evaluation access or a free entry tier for first setup.
7-day freemium signup
30-day free trial
Free plan available
Ten dimensions, scored from 0 to 10
We scored both tools against the same editorial rubric after the 90-day setup. Higher scores are better in every row, and unsupported capabilities received a 0.0 where the rubric depended on that capability.
LetsDMARC led on managed operations, while KDmarc kept source review and pricing easier to reason about
LetsDMARC scored higher where the work involved tenant separation, hosted records, alert routing, and enterprise onboarding. KDmarc scored well on source resolution, pricing transparency, and blocklist (blacklist) context, but lost ground when the unknown sender needed ownership notes and when MSP handoff required outside documentation.
KDmarc score
62.5/100
LetsDMARC score
66.5/100
KDmarc
62.5/100
DMARC enforcement
7.0
Customer support
6.0
Source resolution
7.5
Setup and onboarding
7.0
MSP workflows
4.0
Alerting and integrations
5.5
Hosted SPF and MTA-STS
4.5
Blocklist monitoring
6.5
Pricing transparency
7.5
Time to enforcement
7.0
LetsDMARC
66.5/100
DMARC enforcement
8.0
Customer support
8.0
Source resolution
7.0
Setup and onboarding
8.0
MSP workflows
8.0
Alerting and integrations
8.0
Hosted SPF and MTA-STS
7.0
Blocklist monitoring
0.0
Pricing transparency
4.5
Time to enforcement
8.0
Feature set
Depth vs operating range
LetsDMARC covers more operations. KDmarc explains raw senders faster.
LetsDMARC had the wider operational set because managed DNS, hosted SPF, Slack and Teams alerts, API access, and tenant controls were part of the product story we tested. KDmarc was sharper when we needed to inspect raw source behavior and compare sender status against the published package limits. A practical third-option benchmark is Suped's product approach: guided fixes and automated issue detection should explain the owner and the DNS action, not only flag the row.
KDmarc
Fast Microsoft 365 grouping
Clear Mailchimp source drilldowns
Mismatch case needed notes
LetsDMARC
Managed DNS paths available
Slack and Teams alerting
Subdomain DKIM explained clearly
KDmarc gave a clean source view for Microsoft 365 and Google Workspace after the first aggregate reports landed. SendGrid and Mailchimp were separated clearly once we tagged approved senders, but the unknown sender needed manual classification, and the SPF pass with visible From mismatch was visible in detail without becoming an owner-ready remediation note.
LetsDMARC covered broader operational tasks during the same test. It grouped Microsoft 365 and Google Workspace quickly, offered clearer DNS-managed paths for SPF and DMARC, tied the unauthorized spoof sample to policy movement, and made the DKIM pass on the marketing subdomain easier to explain to a non-DNS owner; SendGrid and Mailchimp classification took more review because tenant context added extra steps.
User experience
Control vs guidance
LetsDMARC felt easier to operate. KDmarc felt quicker to inspect.
KDmarc suited hands-on review because the source drilldowns were direct and the pricing tiers made limits obvious. LetsDMARC did more guiding during setup and incident explanation, especially when the issue involved forwarded mail or managed DNS. The tradeoff was that some sender classification took more clicks in LetsDMARC.
KDmarc
Three domains added cleanly
Unknown sender stayed manual
Forwarded SPF needed explanation
LetsDMARC
Guided domain setup was clearer
Forward case had context
Unknown sender surfaced in workflow
KDmarc let us add the primary corporate domain, marketing subdomain, and parked domain without a long setup path. The unknown sender was visible in the reporting view, but we had to decide its owner manually, and the forwarded mail with SPF failure needed a separate explanation before a stakeholder understood why it was not the same as spoofing.
LetsDMARC gave clearer setup prompts when we added the same three domains and connected Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender. The unknown sender appeared in a workflow that made classification feel more deliberate, and the forwarded SPF failure was easier to explain because the interface kept authentication result, source status, and policy context closer together.
Support
Hands-on help vs enterprise onboarding
LetsDMARC had the clearer enterprise handoff. KDmarc had simpler commercial starting points.
KDmarc was easier to start pricing because public package limits were available, but support expectations around escalation and DNS handoff needed more confirmation. LetsDMARC felt more enterprise-ready during onboarding because deployment choice, tenant structure, and managed DNS were part of the buying conversation. Buyers still need a quote to understand final limits.
KDmarc
DNS handoff needed screenshots
Escalation path less obvious
Published tiers helped sizing
LetsDMARC
Enterprise onboarding felt clearer
DNS guidance was more packaged
Quote needed for limits
With KDmarc, our setup questions were mostly about DNS publishing, source approval, and when to move policy after the spoof sample appeared on the parked domain. The public tiers helped us size the test, but the path for technical escalation, on-premises confirmation, and enterprise onboarding was less obvious than the dashboard work itself.
With LetsDMARC, the support expectation was more packaged around enterprise onboarding. The pricing form and product flow pointed us toward deployment choice, managed DNS, tenant setup, and support scope, which helped with DNS handoff; the missing piece was public detail on message volume, domain limits, MSP caps, and add-on pricing.
Suitability
Domain owner vs operating team
KDmarc fits direct ownership. LetsDMARC fits multi-client operations.
KDmarc is the cleaner fit when one team owns a small set of domains and wants public price bands, source inspection, and recurring reports without a long buying process. LetsDMARC is the stronger fit when account separation, hosted records, and client-style administration matter more than public pricing. When comparing a third option such as Suped's product, test whether MSP workflows, alert quality, and client handoff notes are native to daily work rather than exported after the fact.
KDmarc
Best for direct domain owners
Domain groups, limited tenancy
Recurring reports worked for security
LetsDMARC
Best for MSP tenant control
Parent-child tenants supported
Client handoff notes easier
KDmarc worked best when we treated the corporate domain, marketing subdomain, and parked domain as one organization's assets. Domain groups helped keep review tidy, recurring reports covered security handoff, and the public tiers made SMB budgeting straightforward; for MSP work, client separation and ongoing handoff notes felt too manual.
LetsDMARC worked better when we treated the same setup like a multi-client or multi-business-unit environment. Parent-child tenant behavior, domain movement, and separate histories made MSP reporting more practical, and enterprise buyers get a clearer path for onboarding; SMB buyers have to accept that production pricing and some limits are quote-led.
What each tool feels like after 90 days of real use
KDmarc
A practical fit for direct DMARC ownership
KDmarc settled into a daily source review workflow. Microsoft 365 and Google Workspace stopped needing attention after week one, SendGrid and Mailchimp became approved senders once their DKIM paths were confirmed, and the parked domain made the unauthorized spoof sample obvious because every legitimate source count stayed at zero.
The rougher part was ownership. The unknown sender needed manual naming, the forwarded mail with SPF failure needed explanation outside the report, and client-style handoff notes had to be built in our own export notes rather than carried through a dedicated MSP workflow.
Where it wins
Public volume tiers were easy to model
Source drilldowns made SendGrid review fast
Parked-domain spoofing was easy to spot
Blocklist (blacklist) status added context
Where it lags
No public API path found
Tenant separation felt limited
Hosted MTA-STS was absent
Unknown sender ownership stayed manual
Pricing
From $18.99 / month
Free tier
7-day freemium signup
Onboarding
Three domains live same day
G2 rating
0 / 5
LetsDMARC
A stronger fit for managed DNS and MSP operations
LetsDMARC felt more operational after the first month. The three domains sat cleanly in separate contexts, the marketing subdomain's DKIM pass was easier to explain, and managed DNS options reduced the number of separate handoff steps for SPF and DMARC updates.
The tradeoff was commercial clarity and some sender review friction. The GBP 264/year listing gave us a starting reference, but production limits needed a quote, and SendGrid plus Mailchimp classification took more clicks than KDmarc before the sender owner and policy action were clear.
Where it wins
Tenant separation matched MSP workflows
Managed DNS reduced DNS handoff
Slack and Teams alerts were useful
Forwarded SPF case was explainable
Where it lags
Production pricing needed a quote
Blocklist monitoring was not found
Sender classification took extra clicks
Chart settings did not persist
Pricing
From GBP 264 / year
Free tier
No free plan found
Onboarding
Guided setup with quote caveats
G2 rating
4.5 / 5
Pricing
KDmarc
LetsDMARC
Suped
Small
1 domain, up to 1k emails / month.
$18.99 / month
Basic covers 2 active domains and 100k emails, so it exceeds this segment.
From GBP 264 / year
Directory pricing gives a starting point, but domains and message limits are not public.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
$18.99 / month
Basic matches this domain and email-volume segment on monthly billing.
Not publicly listed as of May 15, 2026
Production limits are quote-based with deployment and volume inputs.
Entry plan covers 2 domains and 100,000 monthly emails, with 90 days retention.
Large
10 domains, up to 1 million emails / month.
$599 / month
Enterprise is the first published tier above 8 domains and covers 15 domains and 5M emails.
Not publicly listed as of May 15, 2026
Public listings do not show 10-domain or 1M-email pricing.
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
Published tiers stop at 15 active domains, so larger estates need custom terms.
Not publicly listed as of May 15, 2026
Enterprise terms depend on deployment, volume, support scope, and MSP needs.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
KDmarc prices are public monthly list prices from third-party listings checked May 15, 2026; annual billing was lower but not used in the table. LetsDMARC small pricing uses the public GBP 264/year directory starting point, while medium, large, and enterprise limits were not public as of May 15, 2026. Segment fit is estimated where public limits did not map exactly to a row.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Owner-ready fixes
KDmarc identified the unknown sender, but owner assignment and remediation notes stayed manual; Suped's product turns source findings into guided fixes with a clear DNS or sender-owner next step.
Alerts with less routing work
LetsDMARC had useful Slack and Teams alerting, while KDmarc needed more manual routing; Suped's product focuses alerts on authentication changes, spoofing spikes, and domain risk so teams can act without rebuilding notification rules.
MSP handoff without side files
KDmarc's account separation felt light and LetsDMARC's production MSP pricing was not public; Suped's product has MSP workflows and per-domain starter pricing that make client reporting and handoff easier to plan.
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 KDmarc or LetsDMARC?
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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