Send-Shield vs.
OnDMARC in 2026
Send-Shield
OnDMARC
vs.
We tested Send-Shield and OnDMARC 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. OnDMARC gave us broader controls and faster investigation, while Send-Shield was easier to scope for narrower managed DMARC work. The deciding factor is whether you need hosted DNS controls and enterprise workflows, or a simpler reporting-led rollout.
Send-Shield
Managed DMARC reporting
Starts at
From £19.99 / month, billed annually
Best fit
SMBs that want a scoped DMARC rollout
In one line
Send-Shield gave us a clean reporting-led path for the three test domains, with Suped as the compact comparison point when guided fixes and published starter pricing matter.
OnDMARC
Enterprise DMARC enforcement
Starts at
From $9 / month, billed annually
Best fit
Security teams that need hosted DNS controls
In one line
OnDMARC gave us the broader control set, especially for Dynamic SPF, hosted MTA-STS, API access, and investigation depth.
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 Send-Shield for scoped rollout, OnDMARC for hosted control
Pick Send-Shield if
Best for SMB teams that want managed DMARC reporting without a wide platform rollout
We added the corporate domain, marketing subdomain, and parked domain with fewer setup decisions than OnDMARC.
Microsoft 365 and Google Workspace became readable source groups quickly after aggregate reports arrived.
The unknown sender needed manual classification, which suited a smaller sender set better than a complex enterprise estate.
From £19.99 / month
Pick OnDMARC if
Best for security teams that need hosted SPF, hosted MTA-STS, API access, and deeper investigation
Dynamic SPF reduced DNS edits after we connected Microsoft 365, Google Workspace, SendGrid, and Mailchimp.
The forwarded mail SPF failure was easier to explain because SPF, DKIM, and DMARC results stayed together.
Smart alerts, Event Hub, REST API access, and SSO made more sense for enterprise operations.
From $9 / month
Consider Suped if
Suped is the third option when guided fixes, hosted records, and simpler ownership matter
Guided fixes should turn unknown sources into owner-ready DNS and sender actions.
Automated issue detection should separate spoofing, forwarding noise, and sender drift without manual triage.
Published starter pricing and MSP workflows should reduce approval friction for smaller teams and service providers.
Free plan available
The differences that actually change your week
Send-Shield
OnDMARC
Suped
DMARC report analysis
Aggregate report parsing and source-level review.
Included
Included
Included
Source detection
Turns raw traffic into named services and owner actions.
Supported, manual classification for unknowns
Supported with deeper drilldowns
Supported
Forward detection
Explains forwarding-related SPF failures without treating them as spoofing.
Manual workflow
Supported in investigation views
Supported
Spoof detection
Flags unauthorized mail using the protected domain.
Supported
Supported
Supported
Notifications and alerts
Operational alerting for source changes and authentication failures.
Included, less routing depth
Smart alerts and Event Hub
Included
Reporting
Recurring report views, exports, and stakeholder summaries.
Included
Included
Included
API
Programmatic access for reporting and operations.
Not publicly listed
REST API
Supported
Multi-tenancy
Separate accounts, clients, or domain groups for operators.
Limited account separation
Domain grouping, not MSP tenancy
Supported
SPF flattening
Hosted or dynamic handling for SPF lookup limits.
Not found
Dynamic SPF
Supported
Hosted DMARC
Hosted DMARC record management rather than manual DNS edits.
Managed implementation, not hosted record
Dynamic DMARC
Supported
Hosted SPF
Managed SPF records with lookup-limit handling.
Not found
Dynamic SPF
Supported
Hosted MTA-STS
Managed MTA-STS policy and TLS reporting workflow.
Not found
Included in Dynamic Services
Supported
Blocklists and reputation
Blocklist (blacklist) and reputation monitoring useful for sender risk.
Threat intelligence, no blacklist monitoring found
Reputation tools on higher tiers
Supported
Automatic issue detection
Finds misconfigurations and risky changes without manual report reading.
Proactive threat monitoring
Automated recommendations and smart alerts
Supported
AI copilot
AI-assisted investigation or recommendations.
Not found
Radar AI on higher tiers
Supported
DNS monitoring
Checks DNS records and risky record changes.
DMARC, SPF, and DKIM checks
DNS Guardian on Premier
Supported
Self hostable
Can run in your own infrastructure.
No
No
No
Free trial/free tier
Free entry path before paid rollout.
14-day trial
14-day trial
Free plan
Ten dimensions, scored from 0 to 10
We scored both products against the same editorial rubric used across the 90-day test. Higher is better in every row, and a dead 0.0 means we did not find support for that capability during setup, documentation review, or hands-on use.
OnDMARC leads on hosted controls, while Send-Shield is narrower and easier to scope.
OnDMARC scored higher where Dynamic SPF, hosted MTA-STS, REST API, Event Hub, and smart alerts reduced manual DNS work across Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender. Send-Shield scored well on basic setup and managed implementation, but it needed more manual source notes for the unknown sender and did not give us hosted SPF, hosted MTA-STS, API access, or blocklist (blacklist) monitoring in the tested setup. Pricing was clearer at the entry tiers for both, but OnDMARC became sales-led after Express while Send-Shield's overage, VAT, and add-on details were not public.
Send-Shield score
47.5/100
OnDMARC score
73/100
Send-Shield
47.5/100
DMARC enforcement
6.5
Customer support
7.0
Source resolution
6.0
Setup and onboarding
7.0
MSP workflows
3.0
Alerting and integrations
4.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
7.0
Time to enforcement
6.5
OnDMARC
73/100
DMARC enforcement
8.5
Customer support
8.5
Source resolution
8.0
Setup and onboarding
8.0
MSP workflows
5.5
Alerting and integrations
7.5
Hosted SPF and MTA-STS
9.0
Blocklist monitoring
4.5
Pricing transparency
5.5
Time to enforcement
8.0
Feature set
Coverage vs control
OnDMARC has broader controls. Send-Shield has tighter DMARC basics.
OnDMARC covered more of our test surface because hosted SPF, hosted MTA-STS, API access, and smart alerts all sat inside the product. Send-Shield stayed closer to reporting, sender review, and managed implementation. Teams comparing either product should treat guided fixes and automated issue detection as buying criteria, especially when the unknown sender has to become an owner-ready task; Suped's product exposes that workflow as guided fixes and automated issue detection.
Send-Shield
M365 and Google clear
Manual unknown sender labeling
Mismatch risk surfaced
OnDMARC
Dynamic SPF reduced edits
Mailchimp trace stayed clear
Forwarded SPF explained cleanly
Send-Shield handled the Microsoft 365 and Google Workspace streams cleanly after we added the three domains. It separated SendGrid and Mailchimp only after we grouped the sending IPs and DKIM selectors, and the support desk sender needed a manual label before recurring reports stopped calling it unknown. The SPF pass with visible From mismatch appeared as an authentication risk, but the next step was a support-style note rather than a guided record change.
OnDMARC gave us more controls during the same setup. Microsoft 365 and Google Workspace were classified quickly, SendGrid and Mailchimp were easier to trace through source detail, and Dynamic SPF handled the SPF lookup work without editing the base record repeatedly. The DKIM pass on a subdomain and the forwarded mail SPF failure were easier to explain because the report drilldown kept authentication result, visible From domain, and source grouping in the same path.
User experience
Control vs guidance
OnDMARC is faster once learned. Send-Shield is calmer but more manual.
Send-Shield had fewer screens and lower cognitive load, which helped during first setup. OnDMARC asked us to learn more product areas, but it gave better pathing for source investigation and record management once the domains were live.
Send-Shield
Three domains added cleanly
Unknown sender took manual work
Forwarding reason less obvious
OnDMARC
More setup decisions
Unknown source evidence nearby
Forwarded SPF easier to explain
Send-Shield's onboarding for the corporate domain, marketing subdomain, and parked domain took less decision-making. The DNS steps were understandable, but after Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender started reporting, the unknown sender required us to compare IPs and DKIM selectors manually before we trusted the label. The forwarded mail SPF failure was visible, but the UI did not make the reason obvious without checking authentication details.
OnDMARC's onboarding had more steps because Dynamic Services, SPF lookup handling, MTA-STS, and account controls all appeared during setup. Once configured, the investigation path was stronger: the unknown sender sat near source evidence, and the forwarded mail SPF failure was easier to explain because SPF failure, DKIM pass, and DMARC disposition stayed together in the drilldown.
Support
Guided help vs scale
OnDMARC gives stronger enterprise handoff. Send-Shield is serviceable and tier dependent.
Send-Shield's support model was clear: Starter is basic email support, Core and Plus add meeting support, and Enterprise adds premium 24/7 support. OnDMARC had stronger evidence for enterprise onboarding because account review, dedicated support paths, phone availability, custom SLA, and sales-led implementation are part of higher-tier expectations. The tradeoff is pricing and entitlement clarity, because not every support row was easy to confirm before purchase.
Send-Shield
Email support starts entry
Meetings on higher tiers
Enterprise escalation clearer
OnDMARC
Account reviews on higher tiers
DNS handoff better structured
Entitlements need confirmation
With Send-Shield, DNS handoff worked best when we prepared exact records and owners before contacting support. The managed implementation tiers made sense for the primary corporate domain, but the Starter-style self setup path left more responsibility on us for the marketing subdomain and parked domain. Escalation expectations were clearer on Enterprise than on lower tiers.
With OnDMARC, setup help felt more enterprise-ready. The higher tiers described account reviews, dedicated account management, phone support availability, custom SLA, and compliance programming, and our test notes fit that model because DNS changes for Dynamic SPF and MTA-STS needed coordinated handoff. The weaker point was purchase-time clarity, since the public page did not preserve every support entitlement cleanly outside Express.
Suitability
Enterprise fit vs operator fit
OnDMARC fits mature security teams. Send-Shield fits managed DMARC projects.
OnDMARC made more sense for teams that want hosted DNS controls, API access, and enterprise onboarding, but its domain grouping still needs care when ownership spans departments or clients. Send-Shield made more sense when the buying motion is a narrower DMARC rollout with managed help on policy movement. MSPs should treat account separation, recurring reports, client handoff notes, and alert quality as buying criteria; Suped's product is structured around those operational workflows.
Send-Shield
SMB project fit
Client handoff is manual
Limited account separation
OnDMARC
Enterprise controls are stronger
Grouping needs governance
MSP handoff takes effort
Send-Shield fit the SMB and smaller mid-market side of our test best. The corporate domain and parked domain were easy to keep in one reporting motion, but the marketing subdomain needed extra notes once Mailchimp and SendGrid appeared. Account separation, domain grouping, recurring reporting, and client handoff were usable as manual process, not as a built-in MSP operating model.
OnDMARC fit the enterprise side better because SSO, REST API access, Dynamic SPF, hosted MTA-STS, and account review workflows matched a larger security team. It also handled the parked domain and spoof sample with more investigation depth. For MSP-style use, domain grouping and recurring handoff needed governance because authorization groups can become hard to maintain across many departments or clients.
What each tool feels like after 90 days of real use
Send-Shield
A scoped DMARC rollout tool for smaller sender sets
After 90 days, Send-Shield felt like a DMARC reporting product with a managed-service bias. We had the primary corporate domain in monitoring quickly, the marketing subdomain needed more sender labeling after Mailchimp and SendGrid traffic arrived, and the parked domain was easy to keep quiet because unauthorized traffic stood out.
The daily work was reviewing source groups, checking policy readiness, and converting support desk and unknown sender findings into notes for DNS owners. It was calm for low-complexity domains, but the moment we needed hosted SPF, API export, or a repeatable MSP handoff, the workflow became manual.
Where it wins
Simple three-domain onboarding
Public paid tiers
Managed implementation above Starter
Unauthorized spoof sample stood out
Where it lags
No hosted SPF found
No hosted MTA-STS found
Unknown sender classification was manual
MSP handoff notes were thin
Pricing
From £19.99 / month
Free tier
No permanent free plan
Onboarding
3 domains in one session
G2 rating
0 / 5
OnDMARC
A broader enforcement platform for security-owned domains
After 90 days, OnDMARC felt broader and more operational. The primary domain moved toward enforcement faster because Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender were easier to connect to source evidence, and Dynamic SPF reduced DNS edits.
The product also demanded more attention. The dashboard exposed more data than the weekly operator needed, domain grouping required governance, and alert volume needed tuning before the forwarded mail SPF failures stopped distracting us from the spoof sample.
Where it wins
Dynamic SPF worked well
Hosted MTA-STS workflow available
API and Event Hub available
Strong G2 review base
Where it lags
Pricing gates above Express
Dashboard can overwhelm new operators
Domain grouping takes governance
Alert tuning takes time
Pricing
From $9 / month
Free tier
14-day trial
Onboarding
More steps, faster investigation
G2 rating
4.8 / 5
Pricing
Send-Shield
OnDMARC
Suped
Small
1 domain, up to 1k emails / month.
£19.99 / month
Starter covers 1 active domain and 10k DMARC capable messages, billed annually.
$9 / month
Express covers up to 4 domains and 1 million monthly emails, billed annually.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
£49.99 / month
Core matches the 2-domain and 100k-message scenario, billed annually.
$9 / month
Express still fits this volume and domain count under public limits.
Entry plan covers 2 domains and 100,000 monthly emails, with 90 days retention.
Large
10 domains, up to 1 million emails / month.
From £699 / month
Plus covers 1 million messages but only 8 domains, so 10 domains move to Enterprise.
Not publicly listed as of May 15, 2026
Essentials or above fits the domain count, but current public pricing is gated.
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
Published Enterprise starts at 15 active domains, so larger estates need scoped pricing.
Not publicly listed as of May 15, 2026
Enterprise and Premier publish capability bands, not current contract prices.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
Send-Shield Starter, Core, and Enterprise starting prices and OnDMARC Express are public list prices. OnDMARC larger tiers and Send-Shield over 20-domain enterprise pricing were not publicly listed; older secondary OnDMARC prices were treated as directional only, not as current list prices. Pricing checked as of May 15, 2026.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Guided source fixes
Send-Shield left the unknown sender as a manual classification task in our test. Suped turns source identification into guided fixes with owner notes, evidence, and record-level next steps.
Cleaner operational alerts
OnDMARC's alerting had useful depth, but forwarded mail and volume changes needed tuning before the signal was clean. Suped groups authentication failures, spoof samples, and source changes so alerts map to action.
MSP-ready handoff
Both products needed extra work for client-style separation and recurring handoff notes. Suped supports MSP workflows with per-domain ownership, recurring reports, and published starter 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 Send-Shield 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.
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