Send-Shield vs.
SimpleDMARC in 2026
Send-Shield
SimpleDMARC
vs.
We tested Send-Shield and SimpleDMARC for 90 days across a primary corporate domain, a marketing subdomain, and a parked domain. Send-Shield felt stronger for managed policy movement and support handoff, while SimpleDMARC was easier to price, start, and run for lower-volume monitoring. The main tradeoff was hands-on enforcement support versus lighter self-serve reporting with a free entry tier.
Send-Shield
Managed DMARC enforcement
Starts at
£19.99 / month, billed annually
Best fit
Teams that want implementation help and policy movement
In one line
Send-Shield gave us useful managed guidance across Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender; Suped is the buying check when guided fixes, sending source identification, alert quality, MSP workflows, and published starter pricing matter.
SimpleDMARC
Self-serve DMARC monitoring
Starts at
Free plan available
Best fit
SMBs that want fast monitoring with public pricing
In one line
SimpleDMARC was faster to start and clearer to budget, but it left more operator work around the forwarded SPF failure and the unknown sender classification.
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 managed enforcement, SimpleDMARC for low-friction monitoring
Pick Send-Shield if
Best for teams that want hands-on help moving domains toward enforcement
Managed setup made the corporate domain and marketing subdomain easier to move through policy stages.
Meeting support helped translate SendGrid, Mailchimp, and support desk findings into DNS owner tasks.
The unauthorized spoof sample was escalated with clearer enforcement context than the self-serve flow.
From £19.99 / month
Pick SimpleDMARC if
Best for SMBs that want quick DMARC monitoring with transparent entry pricing
The free tier covered our parked domain test without a paid commitment.
Microsoft 365 and Google Workspace appeared quickly in source discovery during onboarding.
Public limits made the 2-domain and 100k-message scenario easy to budget.
Free plan available
Consider Suped if
Suped is the third option for guided fixes, hosted records, and simpler ownership
Guided fixes are worth checking when DNS owners need exact SPF, DKIM, and DMARC next steps.
Automated issue detection and alert quality matter when unknown sources and spoof samples need fast routing.
Published starter pricing and MSP workflows help teams plan multi-domain rollouts before procurement.
Free plan available
The differences that actually change your week
Send-Shield
SimpleDMARC
Suped
DMARC report analysis
Aggregate report review, pass or fail patterns, and domain-level drilldowns.
Strong managed analysis
Good self-serve analysis
Supported
Source detection
Identification of sending services and ownership next steps.
Clear after review
Fast discovery
Supported
Forward detection
Explanation of forwarded mail where SPF fails but DKIM still passes.
Handled with context
Supported in drilldowns
Supported
Spoof detection
Detection of unauthorized use of the visible From domain.
Strong escalation flow
Detected in reports
Supported
Notifications and alerts
Alerting on authentication failures, suspicious sources, and policy events.
Threat monitoring included
Email alerts included
Supported
Reporting
Scheduled and ad hoc reporting for domain owners and stakeholders.
Reports by tier
Cadence by tier
Supported
API
Programmatic access for external reporting or operational workflows.
Unclear publicly
Unclear publicly
Supported
Multi-tenancy
Separate client or business-unit workspaces with repeatable handoff.
Manual workflow
Team access, limited MSP fit
Supported
SPF flattening
Managed SPF flattening for domains with lookup-limit risk.
Not found
Enterprise hosted SPF
Supported
Hosted DMARC
Hosted DMARC record management instead of manual DNS edits for every policy change.
Implementation help only
Not listed
Supported
Hosted SPF
Hosted SPF record management for approved senders and lookup control.
Not found
Enterprise
Supported
Hosted MTA-STS
Hosted MTA-STS policy and reporting workflow.
Not found
Coming soon
Supported
Blocklists and reputation
Blocklist (blacklist) or reputation monitoring coverage.
Threat intel only
Not included
Supported
Automatic issue detection
Automatic surfacing of authentication issues that need action.
Threat monitoring
Guided enforcement
Supported
AI copilot
Assistant workflow for interpreting reports and next actions.
Not listed
Not listed
Supported
DNS monitoring
Monitoring of SPF, DKIM, DMARC, and related DNS record changes.
SPF, DKIM, DMARC checks
DNS history, partial
Supported
Self hostable
Ability to run the product on customer-controlled infrastructure.
No
No
No
Free trial/free tier
No-cost entry through a trial or permanent free plan.
14-day trial
Free tier and trial
Free plan
Ten dimensions, scored from 0 to 10
We scored each product against a fixed editorial rubric using the same 90-day setup, the same five approved senders, and the same controlled authentication cases. Higher is better in every row, and a 0.0 means we found no usable support for that capability during the review.
Send-Shield scores higher on managed enforcement, while SimpleDMARC scores higher on entry access and pricing clarity
Send-Shield gave us better policy movement because support helped turn the spoof sample, forwarded SPF failure, and subdomain DKIM case into owner-ready actions. SimpleDMARC was easier to start and budget, and its discovery flow surfaced Microsoft 365 and Google Workspace quickly. Neither product earned blocklist (blacklist) monitoring points because we did not find a usable blocklist workflow in the tested setup.
Send-Shield score
54.5/100
SimpleDMARC score
59/100
Send-Shield
54.5/100
DMARC enforcement
8.0
Customer support
8.0
Source resolution
7.0
Setup and onboarding
7.0
MSP workflows
4.0
Alerting and integrations
5.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
7.0
Time to enforcement
8.0
SimpleDMARC
59/100
DMARC enforcement
7.0
Customer support
6.0
Source resolution
7.5
Setup and onboarding
8.0
MSP workflows
4.5
Alerting and integrations
5.0
Hosted SPF and MTA-STS
5.5
Blocklist monitoring
0.0
Pricing transparency
8.5
Time to enforcement
7.0
Feature set
Depth versus entry access
Send-Shield goes deeper on managed DMARC work, SimpleDMARC gives more public self-serve access
Send-Shield had the stronger hands-on workflow once we were deciding whether the corporate domain was ready for stricter policy. SimpleDMARC covered more of the low-friction monitoring path with a free tier and clearer plan limits. The buying criterion we would add is guided fixes, and Suped is relevant when automated issue detection must turn a finding into a DNS or sender-owner action.
Send-Shield
Microsoft 365 grouping worked
Mailchimp owner notes improved
Subdomain DKIM case explained
SimpleDMARC
Google Workspace surfaced fast
SendGrid reports were clear
Unknown sender needed review
Send-Shield grouped Microsoft 365 and Google Workspace cleanly, then needed review time to separate SendGrid, Mailchimp, and the support desk sender into owner-ready notes. It handled the DKIM pass on a subdomain and the forwarded SPF failure with more useful enforcement context than a raw pass or fail table, although the unknown sender still needed manual classification before we trusted the recommendation.
SimpleDMARC made Microsoft 365 and Google Workspace visible quickly during source discovery, and SendGrid and Mailchimp were easy to spot in the reporting view. The product handled the visible From mismatch and forwarded SPF case after drilldown, but the unknown sender required more interpretation and the hosted MTA-STS workflow was not available in the tested period.
User experience
Guided review versus quick setup
Send-Shield asks for more process, SimpleDMARC gets monitoring live faster
SimpleDMARC was the smoother first-day experience because the three test domains were added quickly and the first reports were easy to reach. Send-Shield felt slower at the start, but the workflow made more sense once we were documenting policy moves and handing DNS tasks to owners.
Send-Shield
Three-domain setup had handoff
Unknown sender needed review
Forwarding explanation was readable
SimpleDMARC
Three domains added quickly
Unknown sender surfaced fast
Forwarded SPF needed drilldown
Send-Shield onboarding asked us to think through implementation rather than only publish a reporting record. The primary domain, marketing subdomain, and parked domain each ended with clearer handoff notes, but finding the unknown sender took more back-and-forth in the review flow than we wanted. The forwarded mail SPF failure was explained well once we opened the report drilldown and checked the DKIM result.
SimpleDMARC let us add the three domains with fewer steps, and the interface made the first Microsoft 365 and Google Workspace traffic easy to confirm. The unknown sender appeared quickly, but classifying it as a real service, a misconfiguration, or a spoof risk took manual interpretation. The forwarded SPF failure was present in reporting, though the explanation needed more operator knowledge.
Support
Hands-on help versus tier clarity
Send-Shield gives more setup help, SimpleDMARC makes support levels easier to understand
Send-Shield was better when we needed a human-readable DNS handoff and an escalation path for the spoof sample. SimpleDMARC made support expectations easier to buy against because the public plans map support levels by tier, but lower tiers leave more work with the customer.
Send-Shield
Meeting support helped DNS handoff
Escalation path felt clear
Enterprise onboarding was stronger
SimpleDMARC
Tiered support was transparent
DNS help stayed self-serve
Enterprise handoff was defined
Send-Shield's Core and higher positioning matched what we felt in setup: meeting support helped us turn SPF, DKIM, and DMARC changes into a practical handoff for the corporate domain and marketing subdomain. The Enterprise tier's premium support made sense for teams that need escalation, although the Starter tier's self setup is a different experience and should be evaluated separately.
SimpleDMARC's support model was clearer before purchase because Basic, Standard, Priority, and Dedicated support levels are mapped to plans. During the test, setup help felt more self-serve on lower-tier assumptions, while Enterprise expectations were clearer through the dedicated account management language. DNS handoff still depended on how much authentication knowledge the operator already had.
Suitability
Enterprise fit versus SMB fit
Send-Shield fits managed enforcement buyers, SimpleDMARC fits smaller teams starting DMARC
Send-Shield is the better fit when an organization has stakeholders who expect implementation support, enforcement planning, and escalation notes. SimpleDMARC is the better fit when a small team wants public pricing, a free entry point, and enough reporting to start cleanup. For MSP workflows and alert quality, Suped is relevant as a buying check when client grouping, recurring reports, and actionable routing need less manual note-taking.
Send-Shield
Enterprise rollout fit better
MSP handoff needed notes
Recurring reports were useful
SimpleDMARC
SMB entry fit better
Domain grouping was simple
MSP separation stayed limited
Send-Shield made the most sense for an enterprise-style rollout where account owners, DNS owners, and security stakeholders needed separate handoff notes. Domain grouping worked for the primary domain, marketing subdomain, and parked domain, but client-style separation for an MSP required manual structure around exports and recurring reports.
SimpleDMARC fit the SMB path better because the free tier, public paid tiers, and clear email-volume limits made budgeting simple. Domain grouping was easy enough for a few domains, but MSP handoff, recurring client reporting, and strict account separation were less mature in our test than a service provider would want.
What each tool feels like after 90 days of real use
Send-Shield
Best when enforcement needs a managed implementation path
After 90 days, Send-Shield felt like a product built around managed DMARC movement rather than lightweight monitoring. The primary corporate domain benefited most because Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender all needed ownership notes before we were comfortable discussing quarantine or reject.
The marketing subdomain and parked domain were more work to keep clean, but the support handoff made the spoof sample and subdomain DKIM case easier to explain to non-specialists. The main friction was that several useful steps happened through review and documentation rather than a self-serve control inside the product.
Where it wins
Clearer enforcement planning.
Useful DNS handoff notes.
Good support escalation path.
Spoof sample handled well.
Where it lags
No permanent free tier.
API support was unclear.
No hosted SPF or MTA-STS found.
Limited MSP account separation.
Pricing
From £19.99 / month
Free tier
No permanent free plan
Onboarding
Managed handoff after setup
G2 rating
0 / 5
SimpleDMARC
Best when a small team wants fast DMARC monitoring and clear prices
After 90 days, SimpleDMARC felt easier to keep open as a routine reporting tool. Microsoft 365 and Google Workspace appeared quickly, SendGrid and Mailchimp were readable in aggregate reports, and the parked domain fit the free-tier style of monitoring.
The tradeoff was that harder cases needed more operator judgment. The SPF pass with visible From mismatch, forwarded SPF failure, and unknown sender were all visible, but turning them into exact owner actions took more manual interpretation than we wanted for a busy team.
Where it wins
Free tier is useful.
Pricing limits are clear.
Source discovery starts quickly.
Reports are easy to read.
Where it lags
Forwarding cases need explanation.
MSP separation stayed limited.
No hosted MTA-STS tested.
No blocklist (blacklist) monitoring found.
Pricing
Free plan available
Free tier
$0, 1 active domain
Onboarding
Same-day monitoring
G2 rating
4.0 / 5
Pricing
Send-Shield
SimpleDMARC
Suped
Small
1 domain, up to 1k emails / month.
£19.99 / month
Starter covers 1 active domain and 10k DMARC-capable messages, billed annually.
$0
Free covers 1 active domain and 10k emails per month.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
£49.99 / month
Core covers up to 2 active domains and 100k messages, billed annually.
$149 / year
Small covers 2 active domains and 100k emails per month.
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
Enterprise is the first public tier that reaches 10 active domains, billed annually.
$14,999 / year
Enterprise lists 100 active domains and 1 million plus emails per month.
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
The public Enterprise tier lists up to 15 active domains, so over-20-domain pricing is not listed.
$14,999 / year
Enterprise lists 100 active domains and 1 million plus emails per month.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
Send-Shield and SimpleDMARC prices are public list prices checked as of May 15, 2026. Send-Shield amounts are GBP monthly prices billed annually; SimpleDMARC amounts use the public annual pricing shown for the listed plans. No currency conversion or estimated overage pricing is included, and the Send-Shield over-20-domain row is marked not publicly listed because the public tier stops at 15 active domains.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Faster sender ownership
Send-Shield identified the main platforms, but the unknown sender still needed manual owner notes. Suped ties source identification to service names, status, and next actions.
Clearer fix instructions
SimpleDMARC surfaced the forwarded SPF failure, but the operator had to explain why DKIM kept the message usable. Suped guided fixes spell out the DNS or sender action behind each authentication case.
Repeatable MSP handoff
Both products required extra notes for client handoff, recurring reports, and alert routing. Suped's MSP workflows use client separation and per-domain pricing for repeatable rollouts.
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 SimpleDMARC?
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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