GoDMARC vs.
Splunk TA-DMARC add-on in 2026
GoDMARC
Splunk TA-DMARC add-on
vs.
We tested GoDMARC and Splunk TA-DMARC add-on for 90 days across a corporate domain, a marketing subdomain, and a parked domain. We connected Microsoft 365, Google Workspace, SendGrid, Mailchimp, and a support desk sender, then ran SPF and DKIM pass cases, visible-from mismatch, forwarded mail SPF failure, a spoof sample, and an unknown sender. GoDMARC is the more complete DMARC reporting product; Splunk TA-DMARC add-on is better treated as a free archived collector for teams that already run Splunk.
GoDMARC
Managed DMARC reporting and enforcement
Starts at
$0 free plan; paid from $60 / month
Best fit
Security teams that want a DMARC SaaS workflow with support handoff
In one line
GoDMARC gave us usable DMARC report analysis, source grouping, spoof visibility, and blocklist (blacklist) data with some pricing and packaging caveats.
Splunk TA-DMARC add-on
Self-managed DMARC ingestion for Splunk
Starts at
$0 add-on; Splunk platform cost required
Best fit
Splunk operators who want DMARC XML in their existing search environment
In one line
Splunk TA-DMARC add-on ingested aggregate reports cleanly, but classification, guidance, alerts, and enforcement planning stayed mostly manual; compare Suped when guided fixes and published starter pricing are buying criteria.
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 GoDMARC for managed DMARC, Splunk TA-DMARC for Splunk operators
Pick GoDMARC if
Best for teams that want a DMARC product with guided setup and report views
We added all three domains in one session and had usable aggregate reports the next morning.
Microsoft 365 and Google Workspace were grouped clearly, and SendGrid needed only DKIM selector review.
The spoof sample surfaced as a failure, with enough context to justify a policy move.
Free plan available
Pick Splunk TA-DMARC add-on if
Best for Splunk teams that prefer searchable raw DMARC data over a SaaS console
We could ingest DMARC XML into Splunk, then query each domain and sender with SPL.
Forwarded mail SPF failure was explainable after inspecting authentication fields and receiver data.
Unknown sender classification required our own lookup table and operating notes.
$0 add-on; Splunk required
Consider Suped if
Choose Suped when guided fixes, hosted records, and simpler ownership matter
Guided fixes turn source failures into owner next steps.
Automated issue detection catches DNS and sender drift.
Published starter pricing and MSP domain billing are clear.
Free plan available
The differences that actually change your week
GoDMARC
Splunk TA-DMARC add-on
Suped
DMARC report analysis
Turns aggregate reports into sender, domain, and pass or fail views.
Full DMARC reporting workflow
Reporting only through Splunk data
Full DMARC reporting workflow
Source detection
Identifies sending services and gives teams a path to ownership.
Good for common senders, manual owner notes
Raw IP and domain fields, manual classification
Sender identification with ownership workflow
Forward detection
Separates forwarding behavior from actual spoofing risk.
Visible in report drilldowns
Manual SPL investigation
Forwarding patterns identified
Spoof detection
Flags traffic that fails authentication and domain checks.
Spoof sample surfaced clearly
Searchable failure events
Spoofing alerts and failure context
Notifications and alerts
Routes meaningful authentication changes to the right team.
Email notifications, limited routing
Splunk alerts, manual rules
Noise-controlled operational alerts
Reporting
Creates recurring reports for security, IT, or client review.
Dashboard and custom reports on higher tier
Dashboards and exports depend on Splunk build
Recurring reporting and exports
API
Exposes data for integration or downstream reporting.
No public API confirmed
Splunk search APIs available
API supported
Multi-tenancy
Separates accounts, domains, teams, or clients cleanly.
Multi-user and domain grouping, MSP workflow partial
Possible with indexes and roles, manual workflow
MSP and account separation
SPF flattening
Manages SPF complexity when senders exceed DNS lookup limits.
SPF pre-validation only on top tier
Not supported
Hosted SPF flattening
Hosted DMARC
Hosts DMARC policy records so changes do not require every DNS edit.
DNS guidance, not hosted DMARC
Not supported
Hosted DMARC records
Hosted SPF
Hosts SPF records or managed SPF includes.
Not supported
Not supported
Hosted SPF records
Hosted MTA-STS
Hosts MTA-STS policy files and related DNS records.
MTA-TLS reporting, no hosted MTA-STS
Not supported
Hosted MTA-STS
Blocklists and reputation
Checks IP or domain reputation and blocklist (blacklist) signals.
IP reputation and blacklist views
Not supported by the add-on
Blocklist and reputation monitoring
Automatic issue detection
Flags sender, DNS, or authentication problems without manual searches.
Partial, strongest on known failures
Manual SPL searches
Automatic issue detection
AI copilot
Uses AI assistance to explain problems or remediation steps.
Not tested or publicly confirmed
Not supported
AI copilot supported
DNS monitoring
Tracks DNS record changes that affect authentication.
Domain DNS history included
Requires separate Splunk ingestion
DNS monitoring included
Self hostable
Can be installed and operated in your own environment.
SaaS product
Installable Splunk add-on
SaaS product
Free trial/free tier
Allows testing before paid commitment.
Free plan available
$0 add-on, Splunk required
Free plan available
Ten dimensions, scored from 0 to 10
We scored each product against a fixed editorial rubric based on the same 90-day setup, sender mix, authentication cases, and operating tasks. Higher is better in every row, and a product with no tested support for a category gets 0.0.
GoDMARC scores higher for DMARC operations; Splunk TA-DMARC add-on scores where raw data control matters
GoDMARC moved faster because onboarding, sender grouping, failure drilldowns, and policy guidance were already part of the product. It handled Microsoft 365, Google Workspace, SendGrid, and Mailchimp with less custom work, though ownership notes, alert routing, hosted records, and pricing clarity were weaker than the core reporting. Splunk TA-DMARC add-on was useful once data landed in Splunk, but source naming, support handoff, enforcement planning, and every operational alert required manual buildout.
GoDMARC score
61.5/100
Splunk TA-DMARC add-on score
29.5/100
GoDMARC
61.5/100
DMARC enforcement
7.5
Customer support
7.0
Source resolution
7.0
Setup and onboarding
7.5
MSP workflows
5.5
Alerting and integrations
5.5
Hosted SPF and MTA-STS
1.5
Blocklist monitoring
7.0
Pricing transparency
6.0
Time to enforcement
7.0
Splunk TA-DMARC add-on
29.5/100
DMARC enforcement
4.0
Customer support
0.0
Source resolution
3.5
Setup and onboarding
4.0
MSP workflows
5.0
Alerting and integrations
6.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
3.5
Time to enforcement
3.5
Feature set
Product depth
GoDMARC has the stronger DMARC feature set; Splunk TA-DMARC add-on has the stronger raw-data path
GoDMARC wins this category because it gave us sender grouping, spoof visibility, DMARC drilldowns, and blacklist data without building our own searches. Splunk TA-DMARC add-on kept the raw events flexible, but every source owner, issue explanation, and policy step needed custom work. Buyers should treat guided fixes and automated issue detection as key criteria, especially when an unknown sender or spoof sample needs action the same day.
GoDMARC
Microsoft 365 grouped cleanly
SendGrid selector review helped
Spoof sample surfaced fast
Splunk TA-DMARC add-on
Raw DMARC events searchable
Mailchimp lookup table worked
Mismatch needed custom SPL
GoDMARC recognized Microsoft 365 and Google Workspace quickly, grouped Mailchimp under the marketing subdomain, and showed SendGrid after we checked the DKIM selector against the header domain. The unknown support desk sender stayed less clear until we added a manual classification note, but the spoof sample surfaced as a failed source tied to the parked domain, and the DKIM pass on a subdomain was easier to explain in the drilldown than in raw XML.
Splunk TA-DMARC add-on ingested aggregate XML through the monitored mailbox and mapped authentication results into searchable Splunk fields. That gave us flexible queries for Microsoft 365, Google Workspace, SendGrid, and Mailchimp, but sender names came from our own lookup table, and the SPF pass with visible from mismatch needed a custom search plus reviewer notes before anyone outside the Splunk team understood it.
User experience
Guidance vs control
GoDMARC is easier to operate; Splunk TA-DMARC add-on rewards teams that already live in Splunk
GoDMARC gave us a clearer path through setup, sender review, and DMARC failures. Splunk TA-DMARC add-on gave us control over the data model and searches, but the experience depended on Splunk knowledge rather than DMARC-specific guidance. For a small security team, the extra Splunk flexibility did not offset the manual work.
GoDMARC
Three domains added quickly
Unknown sender easier to find
Forwarding explanation was readable
Splunk TA-DMARC add-on
Setup needed Splunk admin
Unknown sender required SPL
Forwarding explanation stayed manual
With GoDMARC, we added the corporate domain, marketing subdomain, and parked domain in one session, then copied DNS values into our registrar workflow. The unknown sender was found through the source view after two report cycles, and the forwarded mail SPF failure had enough receiver and authentication context for us to explain why SPF failed without treating it as a spoof.
With Splunk TA-DMARC add-on, the main work was configuring mailbox polling, indexes, sourcetypes, field extraction, and dashboard views before the three domains felt reviewable. Finding the unknown sender meant writing a query, exporting candidate IPs, and adding a lookup entry; explaining forwarded mail SPF failure meant walking a stakeholder through raw fields instead of pointing them to a product explanation.
Support
Help during setup
GoDMARC has real setup support; Splunk TA-DMARC add-on is mostly self-supported
GoDMARC had the better support path for DNS setup and escalation because the product is still sold as a DMARC service. Splunk TA-DMARC add-on is archived and marked not supported, so the support burden moved to our Splunk admin and internal runbook. That matters most during the first enforcement decision, when a vague sender owner can delay policy movement.
GoDMARC
DNS handoff was clear
Chat helped setup questions
Escalation depends on tier
Splunk TA-DMARC add-on
Add-on marked not supported
Admin owns DMARC questions
Onboarding needs internal runbook
For GoDMARC, our support expectation was email or chat help for setup, with dedicated support tied to higher plans. During testing, DNS handoff was practical: we could send a specific TXT change request, ask about the parked domain, and get a clear answer on why the support desk sender needed owner confirmation before policy movement.
For Splunk TA-DMARC add-on, there was no add-on support path to rely on during setup or escalation. Splunk platform support can help with platform issues, but our DMARC questions, mailbox polling checks, XML parsing behavior, and enterprise onboarding notes had to be handled through internal Splunk expertise and the archived project documentation.
Suitability
Buyer fit
GoDMARC fits DMARC owners; Splunk TA-DMARC add-on fits Splunk operators
GoDMARC is the better fit for SMB and enterprise teams that want a DMARC workflow, recurring reporting, and a clearer handoff to IT or security owners. Splunk TA-DMARC add-on fits organizations that already have Splunk skills and want DMARC data inside existing operational searches. MSPs should pay close attention to account separation, handoff notes, and alert quality because manual client grouping adds work fast.
GoDMARC
Good single-company account model
Reports worked for management
MSP notes need structure
Splunk TA-DMARC add-on
Best for Splunk teams
Client grouping is manual
SMB setup burden high
GoDMARC worked best when we treated the three test domains as one company account with separate domain views. Account separation was enough for one business, recurring reports were usable for management review, and the support desk sender handoff was understandable, but an MSP managing many client workspaces would still need a stronger process for client notes and recurring ownership tasks.
Splunk TA-DMARC add-on fit a different buyer. We could separate domains or clients through indexes, roles, saved searches, and dashboards, which is powerful for an enterprise Splunk team, but an SMB would inherit too much setup work, and an MSP would need to build its own client grouping, reporting templates, and handoff documentation.
What each tool feels like after 90 days of real use
GoDMARC
A practical DMARC console for teams that want the product to lead the workflow
After 90 days, GoDMARC felt like a DMARC product first and a reporting database second. The corporate domain became readable quickly, the marketing subdomain made Mailchimp review easier, and the parked domain gave us a clean place to prove that the spoof sample was not normal traffic.
The main friction appeared when we needed ownership precision. Microsoft 365 and Google Workspace were obvious, SendGrid became clear after the DKIM selector check, but the support desk sender needed manual classification and internal notes before we were comfortable moving policy.
Where it wins
Fast domain onboarding
Readable sender drilldowns
Useful spoof evidence
Blacklist and reputation checks
Where it lags
Pricing page has conflicts
MSP workflow is partial
Hosted SPF is absent
Alert routing is basic
Pricing
Free plan; paid from $60 / month
Free tier
Yes, 2 active domains
Onboarding
Same-day for three domains
G2 rating
4.9 / 5
Splunk TA-DMARC add-on
A DMARC data collector for teams that already know how to build in Splunk
After 90 days, Splunk TA-DMARC add-on felt useful for evidence retention and custom investigation. We liked having every report event searchable, especially when comparing Microsoft 365, Google Workspace, SendGrid, and Mailchimp across the three test domains.
The cost was operational time. We had to create lookups, saved searches, dashboards, alert thresholds, and handoff notes before the data helped anyone outside the Splunk team, and the forwarded mail SPF failure needed a manual explanation every time it came up.
Where it wins
Searchable raw DMARC data
Flexible domain separation
Works inside Splunk workflows
Free add-on license
Where it lags
Archived and not supported
Manual source classification
No hosted records
No native DMARC guidance
Pricing
$0 add-on; Splunk required
Free tier
Add-on is free
Onboarding
1-2 days with Splunk admin
G2 rating
0 / 5
Pricing
GoDMARC
Splunk TA-DMARC add-on
Suped
Small
1 domain, up to 1k emails / month.
$0
Free plan fits one low-volume active domain, with an annual RUA allowance published inconsistently.
$0 add-on
No TA-DMARC fee found; Splunk platform cost still applies.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
Estimated $120 / month
Estimate uses two Go-Basic active domains at the public $60 monthly price.
$0 add-on
The add-on is free; Splunk platform pricing is not publicly listed as of May 15, 2026.
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
Go-Enterprise is the likely fit because public active-domain language conflicts.
$0 add-on
No DMARC-specific cap was found; storage, retention, and search workload drive platform cost.
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
Enterprise pricing and active-domain limits need quote confirmation.
$0 add-on
The add-on has no public enterprise tier; Splunk platform pricing is not publicly listed as of May 15, 2026.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
GoDMARC free, Go-Basic, and Go-Pro values are public list prices; the medium row is an estimate based on $60 per active domain. GoDMARC large and enterprise pricing are not publicly listed as of May 15, 2026 because public active-domain language conflicts. Splunk TA-DMARC add-on is $0, while Splunk platform cost is 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
Guided sender fixes
GoDMARC identified core senders, but the support desk source still needed manual ownership notes; Suped turns failing sources into owner-specific fixes.
Hosted policy records
Both reviewed products left hosted DMARC, hosted SPF, and hosted MTA-STS outside the main workflow; Suped brings those record changes into one managed path.
Operational alerts
GoDMARC email alerts were basic, and Splunk alerts needed custom SPL; Suped focuses alerts on authentication changes that need action.
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 GoDMARC or Splunk TA-DMARC add-on?
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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