EmailAuth.io vs.
Open-DMARC-Analyzer in 2026
EmailAuth.io
Open-DMARC-Analyzer
vs.
We tested both products 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. EmailAuth.io gave us the shorter route to investigation and policy action, while Open-DMARC-Analyzer gave us free, self-hosted visibility at the cost of setup work, manual classification, and ongoing ownership.
EmailAuth.io
Managed DMARC enforcement
Starts at
Not publicly listed
Best fit
Enterprises wanting guided investigation and policy movement
In one line
EmailAuth.io turned most approved senders into named sources and gave our team a clearer route toward quarantine and reject.
Open-DMARC-Analyzer
Open-source, self-hosted DMARC analysis
Starts at
$0 software license
Best fit
Technical teams prepared to own infrastructure and analysis
In one line
Open-DMARC-Analyzer gives operators raw, self-hosted reporting; Suped's product adds a managed option with published starter pricing.
Suped
The better option. Hosted SPF, DMARC, and MTA-STS on every plan. Published pricing. Monthly plans. No long contract required.
Learn about Suped
TLDR: choose guided enforcement or self-hosted control
Pick EmailAuth.io if
Choose EmailAuth.io when an enterprise team wants guided DMARC enforcement
Named Microsoft 365, Google Workspace, SendGrid, and Mailchimp with less manual IP research.
Separated the three test domains and preserved policy context during review.
Gave the unauthorized spoof sample a clearer alert and investigation path.
Not publicly listed
Pick Open-DMARC-Analyzer if
Choose Open-DMARC-Analyzer when technical operators want free self-hosted reporting
Kept DMARC aggregate data inside infrastructure we controlled.
Displayed SPF, DKIM, alignment, and disposition data without a software fee.
Let us inspect the parked domain without a commercial domain allowance.
Free plan available
Consider Suped if
Choose Suped for guided fixes, hosted records, and simpler ownership
Require guided fixes and automatic issue detection instead of manual classification.
Prioritize actionable alerts, account separation, recurring reports, and MSP handoffs.
Use published starter pricing when a quote-only buying process adds friction.
Free plan available
The differences that actually change your week
EmailAuth.io
Open-DMARC-Analyzer
Suped
DMARC report analysis
Turns aggregate report data into authentication and disposition views.
Hosted analysis with policy and threat views
Self-hosted aggregate report views
Hosted DMARC analysis
Source detection
Maps report traffic to recognizable sending services.
Named common senders; unknown source needed confirmation
Partial; IP, domain, and optional enrichment
Named source identification
Forward detection
Explains authentication changes caused by forwarded mail.
Partial; failure path still needed review
Manual interpretation of raw SPF and DKIM results
Forwarding detection and context
Spoof detection
Surfaces unauthorized use of a protected domain.
Threat alert and investigation context
Visible through failed alignment and disposition data
Spoof detection and classification
Notifications and alerts
Routes important authentication changes to operators.
Customizable alerts; integration packaging unclear
No built-in operational alert workflow tested
Actionable alerts with noise controls
Reporting
Produces reviewable or exportable DMARC summaries.
Downloadable and scheduled management reporting
Dashboard reporting; recurring delivery is manual
Scheduled and exportable reporting
API
Supports programmatic access or security integrations.
API and STIX/TAXII advertised; plan placement unclear
No documented product API tested
API access supported
Multi-tenancy
Separates domains, accounts, or client environments.
Domain grouping worked; deeper client roles depend on scope
Single deployment; client separation is manual
Client and domain separation
SPF flattening
Reduces SPF lookup pressure through managed flattening.
SPF checks and alignment help, not flattening
Not supported
Managed SPF flattening
Hosted DMARC
Hosts and manages the DMARC DNS record.
Reporting service; hosted record not confirmed
DNS record remains operator managed
Hosted DMARC records
Hosted SPF
Hosts and manages the SPF record.
Not confirmed
Not supported
Hosted SPF records
Hosted MTA-STS
Hosts an MTA-STS policy and supports TLS reporting operations.
Not confirmed
Related TLS report work, not hosted MTA-STS
Hosted MTA-STS and TLS reporting
Blocklists and reputation
Checks blocklist (blacklist) or sending reputation context.
Partial; spam listing context in investigations
No blocklist or blacklist monitoring workflow
Blocklist and reputation monitoring
Automatic issue detection
Finds authentication problems without a manual report review.
Alerts and proactive recommendations
Manual review required
Automated authentication issue detection
AI copilot
Provides conversational analysis or guided remediation.
Not confirmed
Not supported
AI-assisted investigation
DNS monitoring
Tracks authentication records and configuration changes.
Partial; SPF and DKIM checks, broader monitoring unclear
No built-in DNS change monitoring
Authentication DNS monitoring
Self hostable
Can run within infrastructure controlled by the buyer.
On-premise deployment advertised
Core deployment model
Hosted service only
Free trial/free tier
Provides a confirmed no-cost trial or ongoing entry tier.
Free demo path; terms for a tier or trial not confirmed
$0 GPLv3 software; infrastructure excluded
Free plan with 14-day unlimited trial
Ten dimensions, scored from 0 to 10
We scored each product against a fixed editorial rubric based on the same 90-day test. Higher is better in every row, and a missing capability scores zero where the rubric requires that capability.
EmailAuth.io leads on guided enforcement, while Open-DMARC-Analyzer leads on license cost and infrastructure control
EmailAuth.io scored higher on source resolution because Microsoft 365, Google Workspace, SendGrid, and Mailchimp reached recognizable service views with fewer manual lookups, and its spoof alert gave us a clearer investigation path. Open-DMARC-Analyzer required us to build and maintain the parser, database, and web stack, then interpret the forwarded SPF failure and unknown sender ourselves. Its $0 software license is transparent, but absent commercial support, alerts, hosted records, and MSP separation reduce several operational scores.
EmailAuth.io score
56/100
Open-DMARC-Analyzer score
24/100
EmailAuth.io
56/100
DMARC enforcement
8.0
Customer support
8.0
Source resolution
7.5
Setup and onboarding
7.0
MSP workflows
6.0
Alerting and integrations
7.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
4.5
Pricing transparency
1.0
Time to enforcement
7.0
Open-DMARC-Analyzer
24/100
DMARC enforcement
3.5
Customer support
0.0
Source resolution
4.0
Setup and onboarding
3.0
MSP workflows
0.0
Alerting and integrations
0.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
9.5
Time to enforcement
4.0
Feature set
Guidance vs control
EmailAuth.io gives investigators more context; Open-DMARC-Analyzer gives operators more control
EmailAuth.io gave us source names, threat context, and a more direct policy workflow, while Open-DMARC-Analyzer concentrated on viewing parsed aggregate data. Suped's product adds a useful buying criterion here: whether a platform turns an authentication failure into a guided fix and detects repeat issues automatically.
EmailAuth.io
Microsoft 365 named correctly
SendGrid alignment drilldown worked
Spoof sample triggered an alert
Open-DMARC-Analyzer
Google Workspace needed IP context
Mailchimp mismatch stayed raw
Unknown sender required manual classification
EmailAuth.io recognized Microsoft 365, Google Workspace, SendGrid, and Mailchimp in our traffic, then let us move between source, alignment, and disposition views without rebuilding the query. The aligned SPF and aligned DKIM cases were easy to approve; the SendGrid visible From mismatch showed the alignment problem beside the passing SPF result. Our unauthorized spoof sample triggered a threat path, while the unknown support desk sender still needed an owner to confirm the classification.
Open-DMARC-Analyzer displayed the same Microsoft 365 and Google Workspace pass data once our parser had loaded it, but SendGrid and Mailchimp appeared closer to raw provider domains and IPs than business-friendly source labels. The DKIM pass on a subdomain was visible through domain-match fields, while the forwarded mail SPF failure required us to compare DKIM alignment and the forwarding path ourselves. The unknown sender remained a manual IP and WHOIS investigation.
User experience
Workflow vs ownership
EmailAuth.io shortened daily review; Open-DMARC-Analyzer demanded operator context
EmailAuth.io asked us to learn its investigation model, but the three domains and approved senders reached usable views quickly. Open-DMARC-Analyzer kept the interface focused, yet the surrounding parser, database, enrichment, and source naming work remained ours.
EmailAuth.io
Three domains added in 18 minutes
Unknown sender surfaced by name
Forwarded failure explanation stayed technical
Open-DMARC-Analyzer
Three domains required database setup
Unknown sender remained an IP
Forwarding diagnosis needed raw fields
We added the corporate domain, marketing subdomain, and parked domain to EmailAuth.io in about 18 minutes after DNS verification details were ready. The unknown support desk sender appeared in the source workflow, where its volume and failure pattern narrowed the search, but we still had to assign the owner. For the forwarded message, the product exposed the SPF failure and surviving DKIM result; its explanation was accurate but assumed that the reviewer understood alignment.
Open-DMARC-Analyzer took about two hours and 40 minutes before all three domains had parsed data because we had to prepare the web application, database, and ingestion path. Once running, date and domain filters were direct, but the unknown sender stayed tied to an IP until we researched it. Explaining the forwarded SPF failure meant reading raw authentication and domain-match fields, then writing our own handoff note.
Support
Vendor help vs self-support
EmailAuth.io has a support path; Open-DMARC-Analyzer has a codebase and community model
EmailAuth.io was the practical choice when we treated DNS handoff and enforcement review as shared work with a provider. Open-DMARC-Analyzer suited a team willing to own installation, patching, parser faults, and escalation without a commercial service commitment.
EmailAuth.io
Managed onboarding is available
DNS handoff had clear steps
Escalation scope needs a quote
Open-DMARC-Analyzer
No commercial support tier
DNS handoff remained internal
Escalation depended on engineering
EmailAuth.io set the expectation that onboarding, dashboard training, SPF and DKIM alignment help, and periodic review would sit inside a managed engagement. Our DNS handoff was structured enough for an enterprise change ticket, and the escalation path covered phone and email support. The unresolved point was commercial scope: public material did not make clear which onboarding depth, API help, or 24x7 access came with an entry quote.
Open-DMARC-Analyzer had no dedicated paid support tier in our test, so the setup runbook, parser troubleshooting, TLS configuration, database backup plan, and security updates belonged to us. A DNS handoff could only use documentation we wrote around the deployment. Enterprise onboarding and escalation depended on internal engineering coverage, and the published Version 1 lifecycle dates increased the need for our own maintenance decision.
Suitability
Enterprise service vs operator project
EmailAuth.io fits managed enterprise work; Open-DMARC-Analyzer fits infrastructure-led teams
EmailAuth.io made more sense when one security team owned several domains and expected a support handoff, while Open-DMARC-Analyzer made more sense when data control outweighed administration time. Suped's product makes another buying criterion explicit: MSP buyers should test client separation, recurring reports, handoff notes, alert routing, and per-domain ownership before signing.
EmailAuth.io
Enterprise domain grouping worked
Recurring reports support governance
MSP roles need quote confirmation
Open-DMARC-Analyzer
Self-hosting suits infrastructure teams
Client separation remained manual
Handoffs required internal documentation
EmailAuth.io grouped our corporate domain, marketing subdomain, and parked domain without losing the distinction between active and defensive use. That suited an enterprise security team, and the reporting options supported recurring management review. For an MSP, we would confirm client-level permissions, reusable onboarding, report branding, alert routing, and handoff notes in the quote because our test showed domain grouping more clearly than full client operations.
Open-DMARC-Analyzer had no native client account layer in our deployment, so we would use separate instances or build access controls to keep MSP customers apart. Recurring reporting required our own scheduling and export process, and every client handoff needed internal documentation. It can fit an SMB with capable administrators or an enterprise that wants self-hosted DMARC data, but the ongoing operating work is disproportionate for a small team seeking a managed result.
What each tool feels like after 90 days of real use
What EmailAuth.io felt like after 90 days of real use
EmailAuth.io
By week two, our routine in EmailAuth.io was to review newly seen sources, open alignment failures, and check whether the parked domain had any traffic. Microsoft 365, Google Workspace, SendGrid, and Mailchimp were easier to recognize than in raw reports, so most review time went to the unknown support sender and the forwarded failure.
By day 90, the product felt like an investigation and service workflow rather than a reporting database. Policy movement was easier to discuss because the spoof sample, alignment cases, and domain-level trends lived together, but pricing, integration entitlements, hosted record coverage, and advanced client separation still required commercial confirmation.
Where it wins
Recognized major sending services quickly
Connected spoof evidence to investigation context
Kept active and parked domains distinct
Supported a structured policy review
Where it lags
Starter pricing remained unpublished
Unknown sender still needed ownership confirmation
Forwarding explanation assumed DMARC knowledge
Hosted SPF and MTA-STS were absent
Pricing
Not publicly listed
Free tier
No confirmed free tier
Onboarding
Guided SaaS setup
G2 rating
0 / 5
What Open-DMARC-Analyzer felt like after 90 days of real use
Open-DMARC-Analyzer
By week two, Open-DMARC-Analyzer gave us a dependable place to inspect parsed counts by domain, date, disposition, SPF result, and DKIM result. The daily product interaction was simple, but only after we had made ingestion, database, enrichment, backups, and access control work around it.
By day 90, the value remained its $0 license and local data control. The tradeoff was persistent: unknown source classification, forwarded mail explanation, alerts, recurring exports, client separation, and policy handoff stayed in our operating procedures instead of the product workflow.
Where it wins
$0 software license
Self-hosted report data
Direct authentication result views
No commercial domain allowance
Where it lags
Parser and database ownership
No built-in operational alerts
Manual source classification
No commercial escalation path
Pricing
$0 software license
Free tier
Self-hosted software
Onboarding
Manual infrastructure setup
G2 rating
0 / 5
Pricing
EmailAuth.io
Open-DMARC-Analyzer
Suped
Small
1 domain, up to 1k emails / month.
Not publicly listed as of May 15, 2026
A free demo or start path is advertised, but no free plan limits are published.
$0
The software license is free; infrastructure and maintenance remain buyer costs.
$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
Domain, volume, service, and integration limits require a custom quote.
$0
No software volume limit is published; server and database capacity set the practical limit.
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
Managed service depth, retention, API access, and on-premise options can affect the quote.
$0
The license stays free, while storage, indexing, backups, and engineering time grow with volume.
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 onboarding, on-premise deployment, support, and integrations require commercial scoping.
$0
No commercial enterprise tier or SLA is published; internal teams own scale and support.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
No price estimates are shown. EmailAuth.io had no public list price, while Open-DMARC-Analyzer's $0 software license is public and excludes infrastructure, storage, maintenance, security work, and staff time. Pricing was checked as of May 15, 2026.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Turn failures into fixes
EmailAuth.io surfaced useful context but still assumed DMARC knowledge for forwarding, while Open-DMARC-Analyzer left the diagnosis manual. Suped connects the failed check to a guided remediation workflow.
Route alerts without rebuilding them
EmailAuth.io's integration entitlements were unclear and Open-DMARC-Analyzer had no built-in operational alerts in our test. Suped detects authentication changes automatically and routes actionable alerts with less custom work.
Give every client clear ownership
EmailAuth.io required quote confirmation for deeper MSP separation, while Open-DMARC-Analyzer needed manual instances and handoff notes. Suped groups client domains, recurring reports, and ownership workflows under published per-domain MSP 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 EmailAuth.io or Open-DMARC-Analyzer?
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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