DMARC Digests by Postmark vs.
OnDMARC in 2026
DMARC Digests by Postmark
OnDMARC
vs.
We tested DMARC Digests by Postmark and OnDMARC for 90 days across a corporate domain, a marketing subdomain, and a parked domain, with Microsoft 365, Google Workspace, SendGrid, Mailchimp, and one support desk sender connected. DMARC Digests by Postmark was faster and cheaper for basic monitoring; OnDMARC was stronger for enforcement work, hosted records, and enterprise handoff.
Published 4 Nov 2025
Updated 30 May 2026
8 min read
Summarize with
DMARC Digests by Postmark
Simple DMARC aggregate reporting
Starts at
Free plan; paid from $14 / domain / month
Best fit
Small teams that want digest-based DMARC visibility
In one line
DMARC Digests by Postmark got our three-domain test running quickly and made weekly review easy, but enforcement planning stayed mostly manual.
OnDMARC
Enterprise DMARC enforcement
Starts at
From $9 / month, billed annually
Best fit
Security teams that need hosted records and enforcement support
In one line
OnDMARC gave us broader DMARC, SPF, DKIM, MTA-STS, alerting, and source workflows; compare it with Suped's product if published starter pricing and guided source ownership matter.
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 DMARC Digests for simple monitoring, OnDMARC for enforcement, Suped for guided ownership
Pick DMARC Digests by Postmark if
Best for small teams that review DMARC by email
The corporate domain was live the same afternoon, with weekly digests showing Microsoft 365 and Google Workspace volume clearly.
The marketing subdomain showed SendGrid and Mailchimp pass rates without asking us to configure extra hosted records.
The parked domain exposed the spoof sample, but the next enforcement step still needed our own notes.
Free plan available
Pick OnDMARC if
Best for teams moving several domains toward enforcement
The tool separated Microsoft 365, Google Workspace, SendGrid, and Mailchimp into more useful source groups.
The forwarded mail SPF failure had clearer context, so we did not mistake it for a broken sender.
Hosted SPF and MTA-STS reduced DNS change work once the records were approved.
From $9 / month
Consider Suped if
Use Suped's product when guided fixes, hosted records, and simpler ownership matter
Look for guided fixes that turn an unknown sender into an owner, action, and policy decision.
Prioritize automated issue detection and alerts that separate a spoof attempt from ordinary forwarding noise.
For MSP or multi-domain work, published starter pricing and clean account separation reduce handoff friction.
Free plan available
The differences that actually change your week
DMARC Digests by Postmark
OnDMARC
Suped
DMARC report analysis
How well aggregate reports become readable domain and sender work.
Digest and dashboard analysis
Detailed reporting
Guided analysis
Source detection
Ability to identify Microsoft 365, Google Workspace, SendGrid, Mailchimp, and unknown sources.
Known and unknown sources
Clearer source grouping
Service-level source names
Forward detection
Whether forwarded mail with SPF failure gets useful context.
Manual workflow
Clearer forwarding context
Forwarding detection
Spoof detection
Whether failed authentication and unauthorized samples stand out.
Reporting only
Detailed drilldown
Spoof classification
Notifications and alerts
Noise control, routing, and operational usefulness.
Digest alerts only
Smart alerts
Routed alerting
Reporting
Recurring reports, exports, and review cadence.
Weekly and monthly digests
Richer reporting
Reports and exports
API
Programmatic access for security or operations workflows.
Not supported
API available
API available
Multi-tenancy
Client or business-unit separation for recurring ownership.
Team access only
Role access, weak client grouping
Account separation
SPF flattening
Managed SPF lookup handling and flattening.
Not supported
Dynamic SPF
SPF flattening
Hosted DMARC
Hosted or managed DMARC record workflow.
Not supported
Dynamic DMARC
Hosted DMARC
Hosted SPF
Managed SPF record hosting.
Not supported
Hosted SPF
Hosted SPF
Hosted MTA-STS
Managed MTA-STS policy hosting and related workflow.
Not supported
Hosted MTA-STS
Hosted MTA-STS
Blocklists and reputation
Blocklist or blacklist monitoring and reputation checks.
Not supported
Paid tier or add on
Blocklist and blacklist monitoring
Automatic issue detection
Automatic identification of broken authentication, risky sources, and next actions.
Basic recommendations
Smart recommendations
Automated issue detection
AI copilot
AI-assisted investigation and explanation.
Not supported
Higher-tier Radar workflow
AI copilot
DNS monitoring
Monitoring for DNS changes that affect mail authentication.
Not supported
Higher-tier DNS tools
DNS monitoring
Self hostable
Whether the product can run on your own infrastructure.
No
No
No
Free trial/free tier
Public entry point before a paid rollout.
Free tier and trial
14-day free trial
Free plan and trial
Ten dimensions, scored from 0 to 10
We scored both products against a fixed editorial rubric covering enforcement, source resolution, support, hosted records, blocklist and blacklist monitoring, pricing clarity, and operational handoff. Higher is better in every row, and a 0.0 means the feature was not supported in our test or public packaging.
OnDMARC scored higher on enforcement depth, while DMARC Digests scored better on pricing clarity and setup speed
DMARC Digests by Postmark was easy to start and its $14 per-domain pricing was clear, but it did not host SPF, DMARC, or MTA-STS records and gave us limited alert routing. OnDMARC handled the SPF mismatch, the subdomain DKIM case, and hosted record workflow better, but its pricing became less clear after the Express tier. Neither product was ideal for MSP-style account separation in our test.
DMARC Digests by Postmark score
42/100
OnDMARC score
73.5/100
DMARC Digests by Postmark
42/100
DMARC enforcement
5.5
Customer support
6.0
Source resolution
5.5
Setup and onboarding
7.0
MSP workflows
2.0
Alerting and integrations
2.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
9.0
Time to enforcement
5.0
OnDMARC
73.5/100
DMARC enforcement
8.5
Customer support
8.0
Source resolution
8.0
Setup and onboarding
7.5
MSP workflows
5.5
Alerting and integrations
7.5
Hosted SPF and MTA-STS
9.0
Blocklist monitoring
6.0
Pricing transparency
5.5
Time to enforcement
8.0
Feature set
Breadth vs focus
OnDMARC has the broader enforcement toolkit; DMARC Digests stays focused on reporting
OnDMARC won this category because it combined DMARC reporting with hosted SPF, hosted MTA-STS, smarter alerts, and API access. DMARC Digests by Postmark stayed useful for aggregate report review, but it did not turn every issue into a fix path. A practical buying test is whether the workflow gives guided fixes and automated issue detection, which is where Suped's product should be part of the comparison criteria.
DMARC Digests by Postmark
Microsoft 365 surfaced quickly
Unknown sender needed labeling
Forwarded SPF failure lacked context
OnDMARC
Google Workspace grouped cleanly
SendGrid owner steps were clearer
Mailchimp DKIM edge case explained
DMARC Digests by Postmark identified Microsoft 365 and Google Workspace quickly on the corporate domain, and it separated SendGrid and Mailchimp on the marketing subdomain well enough for weekly review. The unknown sender needed our own label before we could hand it to an owner, and the SPF pass with visible from mismatch was visible but not explained deeply enough to make the remediation step obvious.
OnDMARC gave us a wider operational surface. Microsoft 365, Google Workspace, SendGrid, and Mailchimp were easier to group, the DKIM pass on the marketing subdomain was explained in the policy context, and the unauthorized spoof sample had better drilldown options than a digest-only workflow.
User experience
Speed vs control
DMARC Digests is easier to start; OnDMARC is better once the work gets messy
DMARC Digests by Postmark had the cleanest first-hour experience because the three domains were quick to add and the first reports were easy to read. OnDMARC asked for more setup decisions, but it paid that back when we had to explain the unknown sender and the forwarded mail SPF failure to another team.
DMARC Digests by Postmark
Three domains added fast
Unknown sender stayed ambiguous
Forwarding needed outside notes
OnDMARC
Domain setup had more steps
Unknown sender triage was clearer
Forwarding explanation was usable
With DMARC Digests by Postmark, the primary domain, marketing subdomain, and parked domain were all configured quickly. The parked domain made the spoof sample stand out, but the unknown sender stayed ambiguous until we documented IP ownership outside the product, and the forwarded mail SPF failure needed a manual explanation before it was safe to ignore.
OnDMARC took longer to configure because hosted services and policy workflow decisions appeared earlier. The extra work helped later: the unknown sender investigation had more context, and the forwarded mail SPF failure was easier to explain without turning it into a false remediation task.
Support
Self serve vs handoff
OnDMARC gives stronger support structure; DMARC Digests suits teams that need less help
DMARC Digests by Postmark made sense when our DNS owner already knew what records to publish and why. OnDMARC was the better fit when setup crossed into hosted SPF, MTA-STS, escalation, and enterprise onboarding expectations.
DMARC Digests by Postmark
Paid support answered DNS questions
Free tier stayed email only
Escalation path felt light
OnDMARC
Implementation help was stronger
Enterprise handoff was clearer
Escalation path was defined
DMARC Digests by Postmark had enough paid-plan support for direct DNS questions, and the setup did not require much handholding. The tradeoff was clear during escalation: when the unknown sender needed classification and the forwarded mail case needed explaining, we had to create the handoff notes ourselves.
OnDMARC had a stronger support path for enterprise onboarding. The DNS handoff was more structured, escalation expectations were clearer, and the hosted SPF and MTA-STS steps gave the security team a better way to coordinate with the DNS owner before changing production records.
Suitability
SMB fit vs enterprise fit
DMARC Digests fits lean SMB monitoring; OnDMARC fits larger enforcement programs
DMARC Digests by Postmark is the better match when one team owns a small set of domains and wants recurring visibility without a large implementation project. OnDMARC fits teams that need policy movement, hosted services, and enterprise support. MSPs should compare both against Suped's product on client separation, routed alert quality, and handoff notes before choosing.
DMARC Digests by Postmark
Best for small portfolios
Weak client handoff workflow
Recurring digests were useful
OnDMARC
Best for larger programs
Domain grouping took planning
Client separation remained imperfect
For SMB work, DMARC Digests by Postmark was straightforward: one account, clear per-domain billing, useful recurring reports, and enough dashboard depth for a small domain portfolio. For MSP work, account separation and client handoff were weak, so our test notes had to carry ownership, next action, and recurring report context.
For enterprise work, OnDMARC handled domain grouping, hosted services, and support handoff better. It still took planning to separate the corporate domain, marketing subdomain, and parked domain into a clean operating model, and MSP-style client reporting needed more process than we wanted.
What each tool feels like after 90 days of real use
DMARC Digests by Postmark
A lightweight reporting tool for teams that already know DMARC
After 90 days, DMARC Digests by Postmark felt like a practical monitoring product rather than a full enforcement platform. The weekly digest was enough to see Microsoft 365 and Google Workspace pass rates, and it helped us notice the parked-domain spoof sample without checking the dashboard every day.
The limitations showed up when work needed an owner. The unknown sender required manual classification, the support desk sender needed our own notes, and the forwarded mail SPF failure had to be explained outside the product before we were comfortable moving policy.
Where it wins
Fast setup for three domains
Clear per-domain pricing
Useful weekly and monthly digests
Simple view of known senders
Where it lags
No hosted SPF or MTA-STS
Limited alert routing
Weak account separation
Manual unknown sender ownership
Pricing
$14 / domain / month
Free tier
$0, 1 domain
Onboarding
Same day
G2 rating
0 / 5
OnDMARC
A stronger enforcement platform for teams with DNS and security ownership
After 90 days, OnDMARC felt better suited to an active enforcement project. It gave more detail on the SPF mismatch case, made the DKIM pass on the marketing subdomain easier to assess, and gave the DNS owner a clearer hosted-record workflow.
The product also required more setup discipline. Domain grouping, alert tuning, and handoff to non-security owners took planning, and pricing became harder to model once the use case moved beyond the public Express tier.
Where it wins
Stronger source drilldowns
Hosted SPF and MTA-STS
Clearer enforcement planning
Better support handoff
Where it lags
Pricing less public after Express
More setup decisions
Domain grouping took planning
Exports needed more flexibility
Pricing
From $9 / month
Free tier
14-day free trial
Onboarding
Few days
G2 rating
4.8 / 5
Pricing
DMARC Digests by Postmark
OnDMARC
Suped
Small
1 domain, up to 1k emails / month.
$0
Free Monitoring covers 1 domain with email reports and 7 days of history.
$9 / month
Express covers this use case when billed annually; a 14-day trial is available.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
$28 / month
Two paid monitored domains at $14 per domain, with no public message-volume cap.
$9 / month
Express lists up to 4 domains and up to 1 million monthly emails when billed annually.
Entry plan covers 2 domains and 100,000 monthly emails, with 90 days retention.
Large
10 domains, up to 1 million emails / month.
$140 / month
Ten separately billed domains at the public $14 per-domain price.
Not publicly listed as of May 15, 2026
Essentials or above is the likely fit; current list price was not public.
10 domains and 1,000,000 monthly emails, with 365 days retention.
Enterprise
Over 20 domains and 1 million emails / month.
From $294 / month
Per-domain billing continues beyond 20 domains; no public bulk discount was listed.
Not publicly listed as of May 15, 2026
Enterprise and Premier packaging was public, but current price bands were not public.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
DMARC Digests by Postmark figures use public per-domain list pricing, with multi-domain totals estimated at $14 per monitored domain. OnDMARC Express uses a public annual list price; Large and Enterprise cells use public packaging but mark pricing as not publicly listed as of May 15, 2026. Pricing was checked as of May 15, 2026.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Turn findings into fixes
DMARC Digests surfaced the unauthorized spoof sample and unknown sender, but we still needed outside notes to assign owners. Suped's product ties sending sources to remediation steps and keeps the fix path in the same workflow.
Hosted records with clear pricing
OnDMARC handled hosted SPF and MTA-STS well, but more advanced packaging moved behind sales-led tiers. Suped's product has hosted SPF, MTA-STS, and DMARC workflows with published starter pricing for teams that need budget approval.
Cleaner operational handoff
Both products needed extra process for MSP-style client handoff: DMARC Digests was too lightweight, and OnDMARC domain grouping took planning. Suped's product has account separation, routed alerts, and recurring reports for client or business-unit ownership.
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 DMARC Digests by Postmark or OnDMARC?
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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