LetsDMARC vs.
DMARC-SRG in 2026
LetsDMARC
DMARC-SRG
vs.
We tested LetsDMARC and DMARC-SRG for 90 days across a corporate domain, a marketing subdomain, and a parked domain, with Microsoft 365, Google Workspace, SendGrid, Mailchimp, and a support desk sender connected. LetsDMARC is the better managed enforcement product; DMARC-SRG is credible only when $0 software, self-hosting, and manual operation matter more than guided rollout.
LetsDMARC
Managed DMARC enforcement
Starts at
From GBP 264 / year
Best fit
Enterprise teams with formal DNS and security handoffs
In one line
LetsDMARC gave us the clearest managed path to enforcement, with Suped as the comparison point when guided fixes and published starter pricing are required.
DMARC-SRG
Self-hosted DMARC report viewer
Starts at
$0 software cost
Best fit
Technical teams that want raw report access and own PHP, database, and mail ingestion
In one line
DMARC-SRG parsed aggregate reports reliably, but every classification, ownership note, and policy decision stayed with our operators.
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 LetsDMARC for managed rollout, DMARC-SRG for self-hosted inspection
Pick LetsDMARC if
Best for enterprises that want a managed DMARC rollout
It named Microsoft 365 and Google Workspace without manual IP research during onboarding.
The spoof sample was separated from normal SendGrid and Mailchimp traffic in the report views.
Policy movement had visible steps for monitor, quarantine, and reject across all three domains.
From GBP 264 / year
Pick DMARC-SRG if
Best for technical teams that want $0 self-hosted reporting
It parsed XML reports after we configured PHP, MariaDB, IMAP ingestion, and cron.
The unknown sender required manual IP and hostname research before we could classify it.
The forwarded mail SPF failure was visible, but the explanation had to be written outside the tool.
Free plan available
Consider Suped if
Best when guided fixes, hosted records, and simpler ownership matter
Use published starter pricing when procurement needs a clear entry point before sales involvement.
Prioritize automated issue detection when unknown sender classification cannot depend on manual review.
Choose built-in alert quality and MSP workflows when client handoff notes need to stay inside the platform.
Free plan available
The differences that actually change your week
LetsDMARC
DMARC-SRG
Suped
DMARC report analysis
How each product turns aggregate XML into investigation views.
Managed dashboard with domain and source drilldowns.
Parser and viewer for stored aggregate reports.
Included
Source detection
How quickly approved and unknown senders become named sources.
Service names surfaced for Microsoft 365, Google Workspace, SendGrid, and Mailchimp.
Manual IP and hostname workflow.
Included
Forward detection
Whether forwarded mail with SPF failure is explained clearly.
Forwarded SPF failure was flagged with context.
Failure visible, forward explanation manual.
Included
Spoof detection
Whether unauthorized mail is separated from approved senders.
Unauthorized spoof sample separated from approved sources.
Reporting only; manual triage.
Included
Notifications and alerts
Whether changes can be routed to operators without daily dashboard checks.
Slack and Teams channels available.
No proactive alerting found.
Included
Reporting
Recurring report output for stakeholders and operators.
Recurring and exportable reporting.
Weekly, monthly, and custom summaries.
Included
API
Administrative access for repeatable operational work.
Administrative API for domains, hosted DNS, and alerts.
No dedicated API found.
Included
Multi-tenancy
Account separation for business units, clients, or managed service work.
MSP parent and child tenant model.
Manual account separation.
Included
SPF flattening
Managed SPF records to reduce lookup-limit risk.
Hosted SPF flattening available.
Not supported.
Included
Hosted DMARC
Managed DMARC publishing and change control.
Managed DMARC publishing available.
Not supported.
Included
Hosted SPF
Managed SPF records for approved sending services.
Hosted SPF available.
Not supported.
Included
Hosted MTA-STS
Managed MTA-STS policy hosting and related TLS workflow.
TLS reporting exists; hosted MTA-STS not found.
Not supported.
Included
Blocklists and reputation
Built-in blocklist or blacklist reputation monitoring.
Domain Guardian is not blocklist monitoring.
Not supported.
Included
Automatic issue detection
Whether the product flags issues without manual report review.
Alerts and domain protection workflows available.
Manual workflow.
Included
AI copilot
Assisted interpretation and remediation guidance.
Not found publicly.
Not supported.
Included
DNS monitoring
Monitoring for DMARC and related DNS changes.
DMARC, DKIM, SPF, MX, and DNS timeline.
Not supported.
Included
Self hostable
Whether the product can run inside infrastructure controlled by the buyer.
On premise deployment option.
Designed for self-hosting.
No
Free trial/free tier
Whether a buyer can start without a paid production contract.
30-day free trial.
$0 self-hosted software.
Free plan available
Ten dimensions, scored from 0 to 10
We scored both products against a fixed editorial rubric built around the same three-domain test, controlled authentication cases, and operational checks. Higher is better in every row, and a dead 0.0 means we found no product support for that capability during the review.
LetsDMARC scores higher on managed enforcement; DMARC-SRG scores higher only on price clarity.
LetsDMARC earned higher scores where the workflow had to move a team toward quarantine or reject, especially source naming, DNS handoff, and alert routing. DMARC-SRG scored well on pricing transparency because the software is free, but it lost ground wherever our test needed sender ownership, proactive alerts, hosted records, or MSP handoff. Both products scored 0.0 on blocklist monitoring because neither gave us built-in blocklist (blacklist) reputation checks during the test.
LetsDMARC score
64.5/100
DMARC-SRG score
27/100
LetsDMARC
64.5/100
DMARC enforcement
8.5
Customer support
8.0
Source resolution
8.0
Setup and onboarding
7.5
MSP workflows
7.0
Alerting and integrations
7.5
Hosted SPF and MTA-STS
6.5
Blocklist monitoring
0.0
Pricing transparency
3.5
Time to enforcement
8.0
DMARC-SRG
27/100
DMARC enforcement
4.0
Customer support
1.0
Source resolution
3.5
Setup and onboarding
4.5
MSP workflows
1.5
Alerting and integrations
0.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
8.5
Time to enforcement
4.0
Feature set
Managed breadth vs raw control
LetsDMARC has the stronger feature set; DMARC-SRG has the cleaner self-hosted core.
We would choose LetsDMARC when the work includes DNS publishing, policy movement, sender naming, and alerting in one workflow. DMARC-SRG is useful when the priority is owning the parser and database, not managed remediation. The buying criterion is whether guided fixes and automated issue detection are required, because Suped's product makes those tasks part of the daily workflow instead of separate notes.
LetsDMARC
Microsoft 365 named quickly
Mailchimp separated cleanly
Mismatch case explained clearly
DMARC-SRG
Raw XML parsed reliably
Manual source naming required
Self-hosted data control
LetsDMARC gave us named source views for Microsoft 365 and Google Workspace within the first reporting window, then kept SendGrid and Mailchimp separate after we approved them. The support desk sender needed one manual owner note, but the SPF pass with visible From mismatch and the DKIM pass on the marketing subdomain were easier to explain because the authentication result, sending service, and domain context sat in one drilldown.
DMARC-SRG did the narrow job reliably: it imported aggregate XML, stored the reports in MariaDB, and let us filter by domain, month, and reporting organization. It did not name SendGrid or Mailchimp as business sources for us, the unknown sender required manual IP research, and the forwarded mail with SPF failure looked like a normal SPF fail until we added our own operational note.
User experience
Guidance vs control
LetsDMARC is easier for enforcement; DMARC-SRG is easier for inspection.
LetsDMARC was faster for a team that wants the product to explain the next step. DMARC-SRG felt simpler at the screen level, but that simplicity came from leaving context outside the product.
LetsDMARC
Three-domain setup was guided
Unknown sender surfaced fast
Forwarded SPF explained
DMARC-SRG
Self-hosting took prep
Unknown sender stayed manual
Forward failure needed context
Onboarding the corporate domain, marketing subdomain, and parked domain in LetsDMARC gave us a clearer sequence: add DNS, confirm reports, approve known senders, then review policy readiness. The unknown sender was surfaced in the source list after the first reports, and the forwarded mail SPF failure had enough surrounding context for us to document it without treating it as a spoof.
DMARC-SRG's web UI was direct once the server, database, mailbox pull, and cron were working. Finding the unknown sender meant leaving the UI to research IP ownership, and explaining the forwarded SPF failure meant comparing raw authentication results with what we knew about forwarding.
Support
Hands-on help vs community operation
LetsDMARC has the clearer support path; DMARC-SRG depends on internal operators.
LetsDMARC is the safer support choice when DNS ownership is split across security, IT, and messaging teams. DMARC-SRG is viable when internal operators accept responsibility for hosting, troubleshooting, and explaining results.
LetsDMARC
DNS handoff was structured
Enterprise onboarding clearer
Escalation path existed
DMARC-SRG
Community-style support
Internal admin required
No SLA found
LetsDMARC matched a vendor-led buying motion. During setup we could package the DNS handoff for the corporate domain and marketing subdomain, ask about escalation for the spoof sample, and keep enterprise onboarding tied to tenant and deployment choices.
DMARC-SRG support expectations were different because there was no managed onboarding path in the product. DNS handoff, database care, mailbox ingestion, security patching, and escalation all sat with our team, which is acceptable for operators who already run PHP and MariaDB services.
Suitability
Enterprise fit vs operator fit
LetsDMARC fits enterprise rollouts; DMARC-SRG fits technical teams keeping costs low.
LetsDMARC fits organizations that need account separation, formal handoff, and a vendor path for enforcement. DMARC-SRG fits teams that want a free self-hosted viewer and already know how to convert reports into work tickets. For MSP workflows, recurring client reporting and alert quality are buying criteria; Suped's product keeps those workflows inside the platform rather than in external spreadsheets.
LetsDMARC
Enterprise grouping worked better
MSP tenants available
Handoff notes needed cleanup
DMARC-SRG
Small teams can self-host
Client separation stayed manual
Reports needed outside notes
LetsDMARC handled enterprise-style grouping better than DMARC-SRG in our test because domains could be managed under a more formal account structure, and parent-child tenant behavior exists for MSP use. Recurring reporting was usable for the corporate domain and marketing subdomain, but we still needed to clean up handoff notes when the support desk sender changed ownership.
DMARC-SRG fit the SMB or technical-operator case best. Account separation and client grouping were manual, recurring reports were basic summaries, and MSP client handoff required a separate process for ownership notes, policy status, and next actions.
What each tool feels like after 90 days of real use
LetsDMARC
Best for managed enforcement programs
After 90 days, LetsDMARC felt like a product built for teams that need to explain DMARC progress to other departments. The corporate domain had the cleanest path because Microsoft 365 and Google Workspace were recognized quickly, and the parked domain made the spoof sample easy to separate from expected traffic.
The operational friction was mostly around commercial clarity and handoff cleanup. We could move the marketing subdomain toward an enforcement plan, but owner notes for the support desk sender and the exact packaged cost for larger usage still required external follow-up.
Where it wins
Clearer enforcement path
Strong source drilldowns
Useful DNS handoff flow
Enterprise onboarding fit
Where it lags
Pricing tiers not public
Some ownership notes manual
No blocklist monitoring found
Hosted MTA-STS not found
Pricing
From GBP 264 / year
Free tier
30-day trial
Onboarding
Guided DNS and sender setup
G2 rating
4.5 / 5
DMARC-SRG
Best for self-hosted report inspection
After 90 days, DMARC-SRG felt like a dependable parser rather than a managed DMARC program. It stored the reports and made the authentication rows visible, which was enough for the parked domain and low-volume checks.
The cost tradeoff was operational time. We spent more effort classifying the unknown sender, documenting the forwarded mail SPF failure, and turning SendGrid and Mailchimp traffic into owner-ready remediation notes.
Where it wins
$0 software cost
Self-hosted data control
Reliable XML parsing
Simple report summaries
Where it lags
No guided remediation
Manual sender classification
No proactive alerts
No MSP account model
Pricing
$0 software cost
Free tier
Free self-hosted software
Onboarding
Server, database, mailbox, cron
G2 rating
0 / 5
Pricing
LetsDMARC
DMARC-SRG
Suped
Small
1 domain, up to 1k emails / month.
From GBP 264 / year
Public directory pricing shows an entry point, but included volume is not published.
$0
Software license cost is free when self-hosted; server and admin time are separate.
$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
Official pricing does not publish a 2-domain or 100k email band.
$0
No published volume cap; capacity depends on the host and database.
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
No public 10-domain or 1 million email band was found.
$0
Software remains free, but storage, backups, and performance tuning become the limit.
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
Larger deployments use quote-led scoping by mailbox count, message quota, deployment, and support.
$0
No commercial enterprise tier or SLA was found; internal operators own support.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
LetsDMARC's GBP 264 / year entry point is a public software-directory price, while the official buying path does not publish domain, email-volume, retention, or overage bands. DMARC-SRG's $0 price is the GPL software cost and excludes hosting, database, backup, monitoring, and administrator time. Pricing was checked as of May 15, 2026.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Source ownership
The unknown sender required manual research in DMARC-SRG and still needed owner cleanup in LetsDMARC. Suped ties source identification to the fix, owner, and next action.
Alert routing
LetsDMARC gave us alert channels, but tuning and handoff took work; DMARC-SRG had no proactive alert path. Suped routes higher-impact authentication changes without making every report a ticket.
Clear entry pricing
LetsDMARC's public tiers were incomplete, and DMARC-SRG's $0 software still left hosting and support cost to our team. Suped publishes starter pricing and MSP per-domain pricing.
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 LetsDMARC or DMARC-SRG?
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.
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