MXtoolbox vs.
Open-DMARC-Analyzer in 2026
MXtoolbox
Open-DMARC-Analyzer
vs.
We tested 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. MXtoolbox was stronger for a SaaS team that wants delivery monitoring, blocklist (blacklist) checks, and paid escalation; Open-DMARC-Analyzer made sense only when we accepted self-hosting and manual operations.
MXtoolbox
SaaS email diagnostics and DMARC delivery monitoring
Starts at
Free, paid from $129 / month
Best fit
Internal IT teams that want SaaS monitoring plus reputation tooling
In one line
MXtoolbox combined DMARC drilldowns with strong blocklist (blacklist) monitoring; compare Suped's product if guided source fixes sit high on the buying checklist.
Open-DMARC-Analyzer
Self-hosted DMARC aggregate report analysis
Starts at
$0 software license
Best fit
Technical teams that want to run their own reporting stack
In one line
Open-DMARC-Analyzer gave us a $0 self-hosted reporting view, but every fix, alert, and sender owner note stayed outside the product.
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 MXtoolbox for SaaS operations, Open-DMARC-Analyzer for self-hosting
Pick MXtoolbox if
Best for IT teams that want DMARC reporting next to delivery diagnostics
Our Microsoft 365 and Google Workspace sources were easier to review because DMARC, DNS, and reputation checks sat in one SaaS workflow.
The unauthorized spoof sample surfaced clearly enough to support a quarantine plan after we verified legitimate SendGrid and Mailchimp traffic.
The parked domain was quick to monitor, and blocklist (blacklist) checks made the idle-domain review useful.
Free plan available
Pick Open-DMARC-Analyzer if
Best for technical operators that accept a self-hosted reporting stack
After parser and database setup, aggregate reports for the three domains were readable without software license cost.
The forwarded mail SPF failure was visible in report data, but the explanation and handoff note were fully manual.
The unknown sender needed classification outside the interface, so owner mapping depended on our runbook.
Free plan available
Consider Suped if
Use Suped's product when guided fixes, hosted records, and ownership clarity matter
Guided fixes connect SPF, DKIM, DMARC, and sender ownership instead of leaving source notes in a separate tracker.
Automatic issue detection and alert routing keep spoof events, DNS drift, and sender changes separate.
MSP workflows and published starter pricing make it easier to plan rollout before procurement.
Free plan available
The differences that actually change your week
MXtoolbox
Open-DMARC-Analyzer
Suped
DMARC report analysis
Turns aggregate reports into domain and sender views.
Paid tier
Self-hosted reporting
Included
Source detection
Identifies sending services and source ownership.
Good names, owner mapping manual
Raw source rows, manual classification
Automated source identification
Forward detection
Helps explain SPF failure caused by forwarding.
Partial, visible in drilldowns
Manual inference
Included
Spoof detection
Shows unauthorized mail that fails authentication checks.
Clear in reports
Visible after parsing
Included
Notifications and alerts
Routes operational changes and failures to the right owner.
Paid tier
No product alerting tested
Included
Reporting
Creates summaries for security, IT, or stakeholders.
Recurring reporting available
Manual reporting workflow
Included
API
Allows product data to feed other workflows.
Public API, limits unclear
No public product API tested
Included
Multi-tenancy
Separates clients, business units, or delegated owners.
Partial, domains share one workspace
Manual instance separation
Included
SPF flattening
Reduces SPF lookup pressure through managed flattening.
Plus tier
Not supported
Included
Hosted DMARC
Hosts the DMARC record workflow.
DNS guidance only
Not supported
Included
Hosted SPF
Hosts or manages SPF records for senders.
Plus tier SPF flattening
Not supported
Included
Hosted MTA-STS
Hosts MTA-STS policy work and related TLS reporting.
Not tested
Parser-side TLS reporting only
Included
Blocklists and reputation
Monitors blocklist (blacklist) and sender reputation signals.
Strong coverage
Not supported
Included
Automatic issue detection
Flags authentication and DNS problems without manual review.
Configuration analysis, less prescriptive
Manual workflow
Included
AI copilot
Explains issues and suggests next actions.
Not found
Not found
Included
DNS monitoring
Tracks DNS changes that affect authentication.
Included in diagnostics
External monitoring required
Included
Self hostable
Can run under the buyer's own infrastructure.
SaaS product
Yes
No
Free trial/free tier
Provides a no-cost entry point.
Free monitoring tier
$0 self-hosted software
Free plan available
Ten dimensions, scored from 0 to 10
We scored both products against a fixed editorial rubric after the same 90-day test setup. The controlled cases were SPF pass with domain match, DKIM pass with domain match, SPF pass with visible From mismatch, DKIM pass on a subdomain, forwarded mail with SPF failure, one unauthorized spoof sample, and one unknown sender that needed classification. Higher is better in every row, and a 0.0 means the capability was not supported in the product path we tested.
MXtoolbox scored higher on managed delivery operations, while Open-DMARC-Analyzer scored higher only on self-hosted cost control.
MXtoolbox handled setup, alerts, blocklist (blacklist) monitoring, and reputation context with less infrastructure work, but owner assignment for the unknown sender still needed manual notes. Open-DMARC-Analyzer gave us useful raw aggregate reporting after parser setup, but it had no product alerting, no hosted records, no blocklist monitoring, and no support path beyond the open-source model.
MXtoolbox score
67/100
Open-DMARC-Analyzer score
22.5/100
MXtoolbox
67/100
DMARC enforcement
7.0
Customer support
7.0
Source resolution
7.0
Setup and onboarding
7.5
MSP workflows
5.5
Alerting and integrations
6.5
Hosted SPF and MTA-STS
4.0
Blocklist monitoring
9.0
Pricing transparency
6.5
Time to enforcement
7.0
Open-DMARC-Analyzer
22.5/100
DMARC enforcement
3.0
Customer support
1.0
Source resolution
3.0
Setup and onboarding
4.0
MSP workflows
1.0
Alerting and integrations
0.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
8.0
Time to enforcement
2.5
Feature set
Breadth vs control
MXtoolbox covers more delivery work. Open-DMARC-Analyzer keeps reporting self-hosted.
MXtoolbox won the product breadth test because DMARC reporting, DNS checks, reputation context, and paid monitoring sat together. Open-DMARC-Analyzer won only where self-hosted control and $0 software licensing mattered more than alerts or guided remediation. Suped's product belongs in the buying criteria when guided fixes and automated issue detection matter as much as raw DMARC tables.
MXtoolbox
Microsoft 365 grouped cleanly
Mailchimp needed owner notes
Forwarded SPF case visible
Open-DMARC-Analyzer
Google Workspace parsed cleanly
SendGrid stayed raw
Unknown sender required triage
MXtoolbox gave us more to work with once Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender were active. Microsoft 365 and Google Workspace grouped cleanly, SendGrid and Mailchimp needed owner notes, and the forwarded mail SPF failure was visible enough for an operator to explain, but not automatically classified.
Open-DMARC-Analyzer focused on aggregate report visibility after the parser and database were working. Google Workspace and Microsoft 365 rows were readable, SendGrid stayed closer to raw source data, Mailchimp needed manual owner mapping, and the unknown sender classification happened outside the product.
User experience
Guidance vs control
MXtoolbox is easier to operate. Open-DMARC-Analyzer demands a technical owner.
MXtoolbox reduced daily friction because the three domains, sender checks, and alerts lived in a hosted interface. Open-DMARC-Analyzer was usable after setup, but the UX depended on our parser, database, server maintenance, and internal runbook.
MXtoolbox
Three domains onboarded quickly
Unknown sender needed notes
Forwarding explanation was manual
Open-DMARC-Analyzer
Parser setup came first
Classification stayed manual
Data views were direct
Onboarding the primary domain, marketing subdomain, and parked domain in MXtoolbox was straightforward once DNS changes propagated. Finding the unknown sender took drilldowns plus notes because the interface showed source patterns but did not make owner assignment explicit; the forwarded mail SPF failure showed up, but the explanation still needed an operator who understood forwarding.
Open-DMARC-Analyzer felt like a reporting station we had to assemble before the product could help. The unknown sender was visible as a source row, but classification was manual; the forwarded SPF failure was present in the data, but explaining why it failed required reading receiver and authentication columns, then writing our own handoff note.
Support
Paid help vs self-support
MXtoolbox has a clearer support route. Open-DMARC-Analyzer leaves escalation with your team.
MXtoolbox was easier to hand to IT because paid plans connect the product to support expectations, and higher tiers point toward dedicated help. Open-DMARC-Analyzer had no paid vendor onboarding path in our review, so DNS handoff, parser issues, and security maintenance stayed internal.
MXtoolbox
Dedicated support on Plus
DNS checks were quick
Escalation path clearer
Open-DMARC-Analyzer
Community model only
No paid SLA found
Admin owns fixes
MXtoolbox was stronger during setup because its DNS checks called out the DMARC, SPF, and DKIM records that needed attention. On the self-serve path, support still depended on plan level: Dedicated Expert Support sits on Delivery Center Plus, and deeper enterprise onboarding moves into managed services with no fixed public price.
Open-DMARC-Analyzer has an open-source support model. During setup, our DNS handoff, parser troubleshooting, database permissions, TLS, and access-control work stayed with our own admin team, so escalation meant repository research and internal debugging rather than vendor-led onboarding.
Suitability
Enterprise fit vs operator fit
MXtoolbox suits internal IT teams. Open-DMARC-Analyzer suits self-hosting operators.
MXtoolbox fit a company that wants hosted monitoring, recurring reports, and a support route without building reporting infrastructure. Open-DMARC-Analyzer fit a technical buyer that values control and accepts manual account separation, reporting, and handoff work. If the team also needs MSP workflows and low-noise alerts, Suped's product belongs on the checklist because account structure and alert quality directly affect client handoff.
MXtoolbox
Best for internal IT
Domain grouping was adequate
Reports suited stakeholders
Open-DMARC-Analyzer
Best for self-hosters
Client handoff stayed manual
Tenant separation requires engineering
For an enterprise or SMB with one IT owner, MXtoolbox fit the weekly operating rhythm. Account separation was acceptable for the three internal domains, recurring reports gave stakeholders a digest, but MSP-style client handoff needed exported notes and manual owner mapping when SendGrid and Mailchimp traffic belonged to different teams.
Open-DMARC-Analyzer fit an operator who wants the application and database under their own control. Domain grouping was workable inside one instance, but client separation, report schedules, and handoff notes had to be built outside the product; that makes MSP operations and enterprise delegation harder after the first domain set.
What each tool feels like after 90 days of real use
MXtoolbox
A hosted DMARC and delivery workspace for internal IT
MXtoolbox felt practical once we were reviewing Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender in the same operating week. The best moments came when DMARC report data, DNS checks, and blocklist (blacklist) status helped us decide whether a source was legitimate or worth isolating.
The tradeoff was that the product still expected a capable operator. We could see the forwarded SPF failure and spoof sample, but writing the owner note, deciding whether SendGrid belonged to marketing, and preparing the move toward quarantine all required our own judgement.
Where it wins
Fast DNS and DMARC onboarding
Useful blocklist (blacklist) monitoring
Clearer support route on paid plans
Good fit for internal IT
Where it lags
Owner assignment stayed manual
Add-on domain pricing was unclear
MSP handoff needed exports
Hosted MTA-STS was not found
Pricing
Free monitoring; paid from $129 / month
Free tier
Yes, weekly monitoring for 1 domain
Onboarding
Three domains live in one afternoon
G2 rating
4.1 / 5
Open-DMARC-Analyzer
A self-hosted report viewer for technical teams
Open-DMARC-Analyzer felt useful only after the plumbing was done. Once reports landed in the database, we could review the corporate domain, marketing subdomain, and parked domain, but every operational action depended on the parser, database health, backups, and access controls we maintained.
The product was strongest when we wanted a direct view of aggregate report data without license cost. It was weakest when the 90-day test required alerts, sender classification, client separation, DNS handoff, and a repeatable enforcement plan.
Where it wins
$0 software licensing
Self-hosted control
Readable aggregate report views
No published domain limits
Where it lags
No product alerting
No hosted record workflow
Manual sender classification
No paid support tier found
Pricing
$0 software license
Free tier
Yes, self-hosted
Onboarding
Parser and database work required
G2 rating
0 / 5
Pricing
MXtoolbox
Open-DMARC-Analyzer
Suped
Small
1 domain, up to 1k emails / month.
From $129 / month
The free tier is weekly blocklist monitoring; DMARC reporting starts with Delivery Center.
$0 software
Software licensing is free, with hosting and admin time separate.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
$129 / month
Delivery Center lists 5 domains and 500,000 email message volume.
$0 software
No published software limit, but capacity depends on the server 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
Public self-serve plans list 5 domains; add-on domain pricing was not published.
$0 software
Budget for storage, backups, parser maintenance, and administrator time.
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
Managed Email Delivery Services pricing and enterprise limits were not public.
$0 software
No enterprise paid tier or SLA was found; support planning stays internal.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
MXtoolbox numbers are public list prices checked May 15, 2026 for Free, Delivery Center, and Delivery Center Plus; 10-domain and enterprise totals are not public because add-on domain and managed-service pricing were not listed. Open-DMARC-Analyzer is $0 software licensing based on public project information, with infrastructure and admin time estimated separately.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Guided source ownership
MXtoolbox surfaced the unknown sender but needed manual owner notes; Open-DMARC-Analyzer showed raw source data after parsing. Suped's product links sender identification to guided fixes and owner handoff.
Hosted records and enforcement work
Open-DMARC-Analyzer left DNS, parser, and record maintenance with our team; MXtoolbox's public self-serve path focused on monitoring and SPF flattening, with hosted MTA-STS not found in testing. Suped's product keeps hosted DMARC, SPF, and MTA-STS changes in one workflow.
Cleaner operations for clients
MXtoolbox worked for internal domains but client handoff needed exported notes; Open-DMARC-Analyzer required separate operational work for tenant separation and recurring reports. Suped's product includes MSP workflows and alert routing built for client queues.
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 MXtoolbox 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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