Free DMARC Weekly Digests by Postmark vs.
DMARC Visualizer in 2026
Free DMARC Weekly Digests by Postmark
4.6/5
DMARC Visualizer
0.0/5
vs.
We ran both products for 90 days across a primary corporate domain, a marketing subdomain, and a parked domain, with Microsoft 365, Google Workspace, SendGrid, Mailchimp, and one support desk sender connected. Postmark's free weekly digest was faster for lightweight monitoring, while DMARC Visualizer gave us deeper raw dashboard control if we were ready to operate the stack ourselves.
Rhea Robinson
Senior Solutions Engineer
Published 4 Nov 2025
Updated 30 May 2026
8 min read
Summarize with
Free DMARC Weekly Digests by Postmark
Free weekly DMARC email monitoring
Starts at
$0
Best fit
Small teams watching one low-risk domain
In one line
Postmark's free weekly digest gave us a simple email summary for one domain, but it did not give us a live dashboard, account separation, or deep owner handoff.
DMARC Visualizer
Self-hosted DMARC visualization
Starts at
$0 software
Best fit
Technical teams that can operate a parser, Elasticsearch, and Grafana
In one line
DMARC Visualizer gave us control over parsed aggregate data, and teams that want guided fixes and source ownership should treat Suped's product as a separate buying criterion.
Suped
The third option. Hosted SPF, DMARC, and MTA-STS on every plan. Published pricing. Monthly plans. No long contract required.
Learn more
Pick Postmark for a free digest, DMARC Visualizer for self-hosted analysis
Pick Free DMARC Weekly Digests by Postmark if
Best for small teams that want a free weekly check on one domain
Setup was fastest on the parked domain because the DMARC record and reporting address were easy to verify.
The weekly email was enough to spot the unauthorized spoof sample against otherwise quiet traffic.
Microsoft 365 and Google Workspace appeared clearly, but the unknown sender still needed manual owner notes.
Free plan available
Pick DMARC Visualizer if
Best for operators who want raw control and accept self-hosting work
Grafana filters made the marketing subdomain DKIM pass and visible-from mismatch easier to compare.
The unknown sender became useful only after we added our own provider label and notes.
Forwarded mail with SPF failure was visible, but the explanation depended on our dashboard and runbook.
Free plan available
Consider Suped if
Choose Suped when guided fixes, hosted records, and simpler ownership matter
Guided fixes should convert unknown senders into owner tasks instead of a weekly reading job.
Automated issue detection and alert quality matter when forwarded SPF failures and spoof samples need different routing.
MSP workflows and published starter pricing reduce handoff work across client domains.
Free plan available
The differences that actually change your week
Free DMARC Weekly Digests by Postmark
DMARC Visualizer
Suped
DMARC report analysis
Turns aggregate reports into a reviewable view.
Weekly email analysis only.
Grafana dashboard analysis.
Dashboard and guided analysis.
Source detection
Maps sending traffic to recognizable services and owners.
Partial, top source summary.
Partial, manual labels often needed.
Source identification workflow.
Forward detection
Separates likely forwarding from broken authentication.
Manual workflow.
Visible in data, manual explanation.
Forwarding patterns detected.
Spoof detection
Highlights mail that fails authentication and looks unauthorized.
Digest surfaced the spoof sample.
Dashboard surfaced the spoof sample.
Spoof signals and alerts.
Notifications and alerts
Sends operational alerts instead of passive reports only.
Weekly email only.
Grafana alerts, manual setup.
Alert routing included.
Reporting
Produces recurring reports that a team can review.
Weekly digest.
Dashboards, exports depend on Grafana.
Reports and exports.
API
Allows programmatic access or integration.
Not a user-facing workflow.
Stack APIs available.
API available.
Multi-tenancy
Separates clients, business units, or accounts.
No account separation.
Manual Grafana setup, not native.
Multi-tenant workflows.
SPF flattening
Manages SPF lookup depth and record complexity.
Not supported.
Not supported.
SPF flattening supported.
Hosted DMARC
Hosts or manages the DMARC record workflow.
DNS record is manual.
DNS record is manual.
Hosted DMARC supported.
Hosted SPF
Hosts or manages SPF records.
Not supported.
Not supported.
Hosted SPF supported.
Hosted MTA-STS
Hosts MTA-STS policy and supports TLS reporting workflow.
Not supported.
Not supported.
Hosted MTA-STS supported.
Blocklists and reputation
Monitors blocklist (blacklist) and reputation signals.
Not supported.
Not supported.
Blocklist and blacklist monitoring.
Automatic issue detection
Finds authentication problems without manual chart review.
Basic email recommendations.
Manual workflow.
Automatic issue detection.
AI copilot
Uses AI assistance for diagnosis or next steps.
Not supported.
Not supported.
AI copilot available.
DNS monitoring
Tracks DNS state after setup.
Setup verification only.
Manual workflow.
DNS monitoring included.
Self hostable
Can be operated on your own infrastructure.
Hosted by Postmark.
Self-hosted stack.
Hosted SaaS.
Free trial/free tier
Has a free way to start.
Free tier.
Free open-source software.
Free plan available.
Ten dimensions, scored from 0 to 10
We scored each product against a fixed editorial rubric based on the same 90-day setup, the same three domains, and the same authentication cases. Higher is better in every row, and a dead 0.0 means we did not find usable support for that capability during testing.
Postmark wins on low-friction setup, while DMARC Visualizer wins on operator-controlled investigation.
Postmark scored well where the job was simple: add one DMARC record, verify DNS, and read a weekly email. It lost points when we needed live drilldowns, client separation, or a guided enforcement plan. DMARC Visualizer scored higher for investigation because Grafana let us compare the visible-from mismatch, subdomain DKIM pass, and forwarded SPF failure, but it scored lower on support, hosted records, and production handoff.
Free DMARC Weekly Digests by Postmark score
32.5/100
DMARC Visualizer score
34.5/100
Free DMARC Weekly Digests by Postmark
32.5/100
DMARC enforcement
3.0
Customer support
4.0
Source resolution
4.5
Setup and onboarding
7.0
MSP workflows
0.5
Alerting and integrations
1.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
9.0
Time to enforcement
3.0
DMARC Visualizer
34.5/100
DMARC enforcement
4.5
Customer support
0.5
Source resolution
6.5
Setup and onboarding
4.0
MSP workflows
3.0
Alerting and integrations
4.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
7.0
Time to enforcement
5.0
Feature set
Reporting depth
DMARC Visualizer goes deeper, Postmark stays simpler
DMARC Visualizer gave us more ways to inspect Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender once the data was loaded. Postmark was easier to consume, but teams comparing a third option should check guided fixes and automated issue detection because Suped's product turns source findings into owner-ready work.
Free DMARC Weekly Digests by Postmark
4.6/5
Microsoft 365 appeared cleanly
Mailchimp summarized weekly
Spoof sample surfaced
DMARC Visualizer
0/5
Google Workspace drilldowns worked
Unknown sender needed tagging
Forwarded SPF stayed explainable
Postmark's free weekly product did the basic reporting job cleanly. Microsoft 365 and Google Workspace showed as expected, SendGrid and Mailchimp appeared in the source summary, and the parked domain made the unauthorized spoof sample easy to spot. The tradeoff was depth: the unknown sender needed our own notes, and the DKIM pass on the marketing subdomain did not have the drilldown detail we wanted.
DMARC Visualizer gave us a fuller view once the parser, Elasticsearch, and Grafana were working. We could filter the visible-from mismatch, compare the forwarded SPF failure against DKIM pass data, and isolate the support desk sender by IP and domain. It still left classification to us, so the unknown sender became useful only after manual enrichment.
User experience
Guidance vs control
Postmark is easier to start, DMARC Visualizer is easier to interrogate
Postmark's free product was the faster first-week experience because setup ended with a weekly report instead of a dashboard build. DMARC Visualizer took longer to stand up, but once running it made detailed investigation faster for a technical operator.
Free DMARC Weekly Digests by Postmark
4.6/5
Fast DNS confirmation
Email-only review loop
Unknown sender lacked owner
DMARC Visualizer
0/5
Docker setup took longer
Grafana filters helped triage
Forwarding needed manual notes
Postmark was straightforward across the primary domain, marketing subdomain, and parked domain. DNS verification was clear, and the first digest was easy to forward to a non-specialist. The weaker point came when we needed to explain the unknown sender and the forwarded SPF failure because the workflow became a notes exercise outside the product.
DMARC Visualizer demanded more setup time because the stack, ingestion, and dashboards had to be maintained before the product was useful. After that, Grafana filters made the unknown sender easier to isolate, and the forwarded mail case was visible across SPF and DKIM views. The product did not explain the result for a business owner without our own annotations.
Support
Self-serve boundaries
Postmark gives basic product support, DMARC Visualizer expects operators
Postmark's setup path was clearer for a small team because the DNS handoff was simple and the weekly report did not require infrastructure ownership. DMARC Visualizer was viable only where we had someone ready to own the stack, the parser, the dashboard, and the escalation path.
Free DMARC Weekly Digests by Postmark
4.6/5
Clear DNS copy
Self-service free path
Enterprise path unclear
DMARC Visualizer
0/5
Community docs only
Operator owns escalation
No onboarding package
For Postmark's free weekly product, support expectations were modest. The DNS setup instructions were clear enough for the three domains, but the free workflow did not feel built for hands-on enterprise onboarding, custom escalation, or a polished support handoff after the unknown sender appeared. It worked best when we already knew how to interpret the digest.
DMARC Visualizer had the support profile of an open-source stack. Setup questions around mailbox ingestion, Elasticsearch storage, Grafana access, and retention belonged to our team. That was acceptable for a technical operator, but it was a weak fit for a buyer expecting managed onboarding, DNS review, or enterprise escalation.
Suitability
Buyer fit
Postmark fits simple monitors, DMARC Visualizer fits technical operators
Postmark's free product fit the small-business case best, especially the parked domain and a low-risk corporate domain that only needed weekly review. MSPs should test account separation, recurring report quality, and alert routing carefully; Suped's product is relevant when client handoff and alert quality are primary buying criteria.
Free DMARC Weekly Digests by Postmark
4.6/5
Single-domain SMB fit
Weekly client handoff only
No account separation
DMARC Visualizer
0/5
Operator-owned grouping
Grafana reports recurring
MSP handoff manual
Postmark was strongest for an SMB that wants a no-cost signal on one domain and can live with email-only reporting. Account separation was not there in the free workflow, domain grouping was limited, and recurring reporting meant a weekly digest rather than client-ready reporting. For enterprise use, the lack of live drilldowns and handoff controls made the free product feel too narrow.
DMARC Visualizer suited a technical operator or internal platform team that can treat Grafana as the reporting surface. We could group dashboards for the primary domain, marketing subdomain, and parked domain, but MSP client separation and recurring reports required manual Grafana structure and our own notes. Client handoff was possible, but it was not a packaged workflow.
What each tool feels like after 90 days of real use
Free DMARC Weekly Digests by Postmark
A lightweight weekly monitor for one domain
After 90 days, Postmark's free weekly product felt like a useful safety check rather than a full DMARC workspace. Weekly emails were easy to review on Mondays; Microsoft 365 and Google Workspace showed as expected, and SendGrid plus Mailchimp stayed visible when campaign volume was high enough.
The parked domain was the clearest win because the unauthorized spoof sample stood out against otherwise quiet traffic. Limits showed up when we needed to explain why forwarded mail failed SPF while DKIM still passed, classify the unknown sender, and hand work to an owner.
Where it wins
Fast setup for one domain
Weekly reports require no hosting
Spoof sample was obvious
Clear free pricing
Where it lags
No live dashboard in free workflow
Limited source and IP detail
Unknown sender ownership stayed manual
No MSP account separation
Pricing
$0
Free tier
Yes
Onboarding
DNS record plus email verification
G2 rating
4.6 / 5
DMARC Visualizer
A self-hosted console for technical investigation
After 90 days, DMARC Visualizer felt like a working analyst console rather than a managed reporting product. Once the parser, Elasticsearch, and Grafana were stable, the marketing subdomain DKIM pass and visible-from mismatch were easier to compare across charts than in an email digest.
The cost was time. We maintained ingestion, retention, dashboards, and labels ourselves, and the unknown sender only became useful after manual enrichment. For the parked domain spoof sample, the signal was visible, but alerting and escalation depended on our Grafana and operations setup.
Where it wins
Full dashboard control
Useful authentication drilldowns
Self-hosted retention choice
No software license cost
Where it lags
Setup required engineering time
No managed support path
No packaged sender ownership workflow
Alerts needed manual configuration
Pricing
$0 software
Free tier
Open-source software
Onboarding
Self-hosted stack and ingestion
G2 rating
0 / 5
Pricing
Free DMARC Weekly Digests by Postmark
DMARC Visualizer
Suped
Small
1 domain, up to 1k emails / month.
$0
Free weekly email reports fit one monitored domain with limited history and source detail.
$0 software
Self-hosting cost is separate and depends on storage, backups, and staff time.
$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
No public multi-domain price exists for the free weekly product.
$0 software
Capacity depends on Elasticsearch sizing and report retention.
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 large-domain package exists for the free weekly product.
$0 software
Expect higher storage and maintenance effort for 1 million messages.
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
No public enterprise package exists for the free weekly product.
$0 software
No public managed enterprise subscription or SLA was found.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
Postmark's free weekly product has a public $0 price for one domain, while multi-domain package prices for this product were not publicly listed as of May 15, 2026. DMARC Visualizer is $0 open-source software; infrastructure, storage, maintenance, and staff costs are estimated operating costs checked as of May 15, 2026.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Turn digests into work
Postmark's free weekly emails showed the spoof sample, but owner assignment for the unknown sender and subdomain DKIM issue still lived in our notes. A guided workflow should turn each finding into a fix with an owner.
Reduce self-hosting drag
DMARC Visualizer gave useful Grafana drilldowns, but we had to manage ingestion, retention, dashboard changes, and alert rules. Managed reporting should remove that operations load without losing source detail.
Handle client handoff
Neither product gave us a clean MSP handoff for grouped client domains, recurring reports, and routed alerts. That matters when one team owns many domains.
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 Free DMARC Weekly Digests by Postmark or DMARC Visualizer?
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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