MXtoolbox vs.
DMARC Monitor in 2026
MXtoolbox
DMARC Monitor
vs.
We tested MXtoolbox and DMARC Monitor for 90 days across a primary corporate domain, a marketing subdomain, and a parked domain. MXtoolbox felt stronger for diagnostics, reputation checks, and broader email operations, while DMARC Monitor felt more directed for teams that want managed DMARC reporting and review-led policy movement.
MXtoolbox
Email diagnostics and DMARC reporting
Starts at
Free plan available
Best fit
Technical teams that want DMARC reporting alongside DNS, blacklist, blocklist, reputation, and mailflow tooling.
In one line
MXtoolbox gave us fast DNS and sender checks, useful reputation context, and enough DMARC reporting to build an enforcement plan, but source ownership still required manual work; Suped's product sets a compact buying check here with guided source identification.
DMARC Monitor
Managed DMARC monitoring
Starts at
From Rs 90000 / year
Best fit
Organizations that want annual DMARC reporting with review meetings, domain allowances, and a service-led implementation path.
In one line
DMARC Monitor kept the workflow focused on DMARC implementation, monitoring, and scheduled reports, but it had less operational depth for alert routing and 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
Choose MXtoolbox for diagnostics, DMARC Monitor for service-led reporting
Pick MXtoolbox if
Best for technical teams that already know how to investigate mail flow
Microsoft 365 and Google Workspace were easy to verify because the DNS and authentication lookup tools sat close to the DMARC views.
SendGrid and Mailchimp appeared as separate traffic patterns quickly, but assigning a business owner and deciding the fix stayed mostly manual.
The forwarded mail SPF failure was explainable after drilling into authentication results, although the interface assumed the operator understood visible From-domain matching.
Free plan available
Pick DMARC Monitor if
Best for teams that want DMARC monitoring packaged with scheduled review
The three-domain setup matched the annual plan structure well because active and inactive domains were clear planning units.
The parked domain and cousin-domain checks fit the spoofing review use case better than a pure diagnostics workflow.
The unknown sender needed human classification notes before we trusted the enforcement path.
From Rs 90000 / year
Consider Suped if
Suped fits teams that want guided fixes, hosted records, and simpler ownership
Guided fixes should turn Microsoft 365, Google Workspace, SendGrid, and Mailchimp findings into owner-ready tasks instead of raw investigation.
Automated issue detection should separate spoofing, forwarding noise, and misconfigured senders before alerts reach the team.
Published starter pricing helps buyers compare domain and volume fit before a sales call.
Free plan available
The differences that actually change your week
MXtoolbox
DMARC Monitor
Suped
DMARC report analysis
Aggregate report parsing, domain-match views, and policy readiness review.
Paid tier
Included
Included
Source detection
Ability to identify sending services and separate approved from unknown traffic.
Partial
Manual workflow
Included
Forward detection
Handling forwarded mail where SPF fails but DKIM or ARC-style clues explain the result.
Partial
Reporting only
Included
Spoof detection
Flagging unauthorized mail that fails SPF and DKIM checks for the visible From domain.
Included
Included
Included
Notifications and alerts
Operational alerts for reputation, authentication, policy, or sender changes.
Included
Push notification
Included
Reporting
Scheduled or exportable reporting for stakeholders.
Included
Weekly scheduled reports
Included
API
Programmatic access for reporting or workflow integration.
Paid tier
Not publicly listed
Included
Multi-tenancy
Account separation, client grouping, and delegated review workflows.
Partial
Partial
Included
SPF flattening
Flattening or simplifying SPF records to avoid lookup-limit failures.
Plus tier
Not publicly listed
Included
Hosted DMARC
Managed DMARC record hosting and policy changes without direct DNS edits each time.
Not tested
Not publicly listed
Included
Hosted SPF
Managed SPF record hosting for safer sender changes.
Not tested
Not publicly listed
Included
Hosted MTA-STS
Hosted policy and reporting support for MTA-STS.
Not publicly listed
Not publicly listed
Included
Blocklists and reputation
Blacklist and blocklist monitoring plus domain or sender reputation context.
Included
Not publicly listed
Included
Automatic issue detection
Automatic surfacing of misconfigured senders, spoofing, and policy blockers.
Partial
Manual workflow
Included
AI copilot
AI-assisted investigation or remediation guidance.
Not publicly listed
Not publicly listed
Included
DNS monitoring
Ongoing checks for DNS, authentication, and domain health changes.
Included
Partial
Included
Self hostable
Can be deployed and operated by the customer on their own infrastructure.
No
No
No
Free trial/free tier
A free plan or free reporting entry point.
Free tier
Free reporting offer
Free tier
Ten dimensions, scored from 0 to 10
We scored both products against a fixed editorial rubric covering enforcement, support, sender resolution, onboarding, MSP workflows, alerting, hosted records, blacklist and blocklist monitoring, pricing clarity, and time to enforcement. Higher is better in every row.
MXtoolbox leads on diagnostics and reputation, while DMARC Monitor is more focused on guided DMARC review.
MXtoolbox scored higher where the test required DNS investigation, blacklist and blocklist checks, API access, and forensic drilldown across Microsoft 365, Google Workspace, SendGrid, and Mailchimp. DMARC Monitor scored better where annual review structure and domain grouping supported policy movement, but it lost ground on alert routing, public API clarity, hosted record capability, and reputation coverage. Both products required manual ownership decisions before we would move the primary domain toward reject.
MXtoolbox score
66.5/100
DMARC Monitor score
47/100
MXtoolbox
66.5/100
DMARC enforcement
7.0
Customer support
7.0
Source resolution
6.5
Setup and onboarding
7.5
MSP workflows
5.5
Alerting and integrations
6.5
Hosted SPF and MTA-STS
4.0
Blocklist monitoring
8.5
Pricing transparency
7.0
Time to enforcement
7.0
DMARC Monitor
47/100
DMARC enforcement
6.5
Customer support
6.0
Source resolution
5.5
Setup and onboarding
6.5
MSP workflows
6.0
Alerting and integrations
4.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
6.0
Time to enforcement
6.0
Feature set
Breadth vs focus
MXtoolbox has the broader operations toolkit. DMARC Monitor has the narrower DMARC lane.
MXtoolbox gave us more ways to investigate DNS, reputation, blacklist, blocklist, and sender behavior around the same DMARC evidence. DMARC Monitor stayed closer to DMARC implementation, scheduled reporting, and cousin-domain checks. Suped's product raises a useful buying criterion here: automated issue detection should become guided fixes before a domain moves to quarantine or reject.
MXtoolbox
Microsoft 365 DNS checks
Google Workspace domain-match views
Forwarded SPF explained
DMARC Monitor
Cousin-domain spoof checks
Weekly DMARC reporting
Mailchimp classification notes
MXtoolbox handled the widest set of checks in our test. Microsoft 365 and Google Workspace were easy to validate through DNS, MX, SPF, DKIM, and DMARC lookups, while SendGrid and Mailchimp were visible in aggregate report data after traffic settled. The unknown support desk sender still needed manual classification, and the forwarded mail SPF failure required us to explain that SPF failed because the forwarder changed the envelope while DKIM still matched the visible From domain.
DMARC Monitor was more contained. It grouped DMARC activity into reporting views that worked for the primary domain, marketing subdomain, and parked domain, and the cousin-domain reporting was useful during the unauthorized spoof sample review. It did not feel as broad when we needed reputation checks, deeper alert routing, or a quick way to connect the unknown sender back to an internal owner.
User experience
Control vs guidance
MXtoolbox gives operators more control. DMARC Monitor asks for more review discipline.
MXtoolbox felt faster when the operator already knew what to click and what each authentication result meant. DMARC Monitor felt less scattered for DMARC-only work, but it depended more on review notes and human interpretation when the unknown sender appeared.
MXtoolbox
Fast DNS verification
More click paths
Unknown sender slower
DMARC Monitor
Project-like onboarding
Clear scheduled reports
Manual sender notes
Onboarding the three domains in MXtoolbox was quickest for the parked domain because DNS verification and related lookups were close together. The primary domain required more navigation because Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender each led us through separate evidence trails. Finding the unknown sender took longer than expected because the raw source clues were visible before the ownership answer was obvious.
DMARC Monitor made the three-domain setup feel like a planned DMARC project instead of a diagnostics queue. The weekly report structure helped us explain the parked-domain spoof sample to a non-specialist stakeholder, but the forwarded mail SPF failure still needed a human note so nobody treated it as a malicious source. The unknown sender classification felt like a review task rather than an in-product workflow.
Support
Self serve vs review-led
MXtoolbox has stronger self-serve depth. DMARC Monitor makes support part of the plan.
MXtoolbox worked best when our team could own DNS changes and use support for targeted questions or higher-tier handoff. DMARC Monitor set clearer expectations around implementation, review meetings, and remediation discussion, but public support response details were thinner.
MXtoolbox
DNS help is strong
Expert support on Plus
Managed path unclear
DMARC Monitor
Review meetings included
DNS handoff supported
SLA details unclear
With MXtoolbox, setup help was strongest around DNS validation, authentication records, blacklist and blocklist monitoring, and plan-based delivery tooling. The Delivery Center Plus positioning made dedicated expert support easier to justify for teams with five domains and heavier message volume. Enterprise onboarding was less clear until the managed service path entered the discussion.
DMARC Monitor framed support through implementation, monitoring, reporting, and review meetings. That helped during DNS handoff because the product path expected someone to interpret findings and discuss remediation. Escalation expectations, SLA language, and support response times were not public, so an enterprise buyer would need to clarify those points before signing.
Suitability
Operator fit vs managed fit
MXtoolbox suits technical operators. DMARC Monitor suits teams that want review-led DMARC governance.
MXtoolbox is the better fit when the same team owns DNS, deliverability checks, blacklist and blocklist response, and DMARC investigation. DMARC Monitor is the better fit when the buyer wants domain grouping, scheduled reports, and a service-led cadence. Suped's product puts the right MSP buying criteria on the table: account separation, client handoff notes, and alert quality need to hold up across many domains.
MXtoolbox
Best for technical teams
Enterprise diagnostics fit
MSP process needed
DMARC Monitor
Best for SMB governance
Domain grouping is clear
MSP alerts need scrutiny
MXtoolbox fit our technical operator scenario best. Account separation and client grouping were usable but not as purpose-built as an MSP console, so recurring reporting and handoff notes needed outside process. For an enterprise team, the broader diagnostic toolkit helped central admins validate Microsoft 365, Google Workspace, SendGrid, and Mailchimp without buying a DMARC-only tool.
DMARC Monitor fit an SMB or governance-led setup where review meetings and scheduled reports matter more than day-to-day diagnostics. The active and inactive domain model made the parked domain and marketing subdomain easier to explain to stakeholders. For MSP work, we would want stronger client-level alert routing and repeatable handoff notes before scaling it across many customers.
What each tool feels like after 90 days of real use
MXtoolbox
A diagnostics-first DMARC product for teams that like to investigate.
After 90 days, MXtoolbox felt like the product we opened when a result needed explanation. The Microsoft 365 and Google Workspace setup paths were straightforward, and the adjacent DNS, SPF, DKIM, MX, blacklist, and blocklist checks made it easier to confirm whether an issue was DMARC-specific or part of a wider mail-flow problem.
The tradeoff was operational follow-through. We could see SendGrid, Mailchimp, the support desk sender, and the unknown source, but assigning owners and deciding the next fix required our own notes. The forwarded mail SPF failure was explainable, but a less technical stakeholder would need translation before approving policy movement.
Where it wins
Fast DNS and authentication checks.
Useful blacklist and blocklist monitoring.
Good reputation context around DMARC findings.
Clear paid tiers for core plans.
Where it lags
Sender ownership remained manual.
MSP handoff needed outside process.
Hosted DMARC and MTA-STS were not public.
Interface assumed technical fluency.
Pricing
Free plan available
Free tier
Yes
Onboarding
Fast for technical admins
G2 rating
4.1 / 5
DMARC Monitor
A review-led DMARC product for teams that want scheduled oversight.
After 90 days, DMARC Monitor felt more like a managed reporting workflow than an investigation workbench. The primary domain, marketing subdomain, and parked domain mapped cleanly to the active and inactive domain model, and weekly reports were easy to use in a review meeting.
The limits showed up when we needed fast operational routing. The unauthorized spoof sample was visible enough to discuss, but the unknown sender and forwarded mail SPF failure still depended on human classification. We did not get the same depth of reputation checks or alert-routing detail that a busy operations team would expect.
Where it wins
Clear active-domain planning model.
Weekly scheduled DMARC reports.
Cousin-domain reporting helped spoof review.
Annual review cadence is explicit.
Where it lags
No G2 review base.
Alert routing details were thin.
No public hosted SPF or MTA-STS.
No public blocklist monitoring.
Pricing
From Rs 90000 / year
Free tier
Free reporting offer
Onboarding
Structured around domains
G2 rating
0 / 5
Pricing
MXtoolbox
DMARC Monitor
Suped
Small
1 domain, up to 1k emails / month.
$0
The free MXtoolbox tier fits basic weekly blacklist and blocklist monitoring for one domain or IP, not full DMARC operations.
Free
The free reporting offer can generate monthly DMARC reports, but paid plan limits are 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 covers up to 5 domains and 500,000 messages, so this scenario fits the public paid tier.
Rs 90000 / year
Bronze covers 2 active domains, 5 inactive domains, unlimited report gathering, and one review meeting.
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
Delivery Center Plus publishes $399 / month for 5 domains and 5,000,000 messages, but this 10-domain scenario needs extra-domain pricing.
Rs 320000 / year
Gold covers up to 25 active domains and 100 inactive domains with unlimited report gathering.
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 has no fixed public annual price, domain allowance, or volume schedule.
Not publicly listed as of May 15, 2026
Advance has no public fixed price, domain allowance, or overage model as of May 15, 2026.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
MXtoolbox Free, Delivery Center at $129 / month, and Delivery Center Plus at $399 / month are public list prices. DMARC Monitor Bronze at Rs 90000 / year and Gold at Rs 320000 / year are public annual prices; monthly equivalents, taxes, overages, and extra-domain costs are not estimated here. Pricing was checked as of May 15, 2026.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Turn sources into owners
MXtoolbox surfaced the unknown sender and approved platforms, but owner assignment still needed outside notes. Suped's workflow is built to classify sending sources and keep the next action attached to the domain.
Reduce review-meeting dependence
DMARC Monitor worked well for scheduled review, but forwarded mail and the support desk sender still needed manual explanation. Suped focuses on guided fixes so teams can act between reporting cycles.
Keep MSP handoff repeatable
Both products needed stronger repeatable client handoff in our MSP-style checks. Suped supports account separation, recurring reporting, and alerts that are easier to route across customer 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 MXtoolbox or DMARC Monitor?
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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