Kevlarr vs.
Postmastery in 2026
Kevlarr
Postmastery
vs.
We tested Kevlarr and Postmastery for 90 days across a primary corporate domain, a marketing subdomain, and a parked domain. We connected Microsoft 365, Google Workspace, SendGrid, Mailchimp, and one support desk sender, then ran SPF pass with matching visible From, DKIM pass with matching domain, visible From mismatch, subdomain DKIM, forwarded SPF failure, a spoof sample, and an unknown sender. Kevlarr moved faster for DMARC operations, while Postmastery gave us deeper investigation context at the cost of more manual work.
Kevlarr
MSP-friendly DMARC monitoring
Starts at
Free DMARC monitoring
Best fit
MSPs and IT teams managing many domains
In one line
Kevlarr gave us quick setup and useful noise filtering, with client-ready DMARC reports across the three-domain test.
Postmastery
DMARC reporting with deliverability review
Starts at
Not publicly listed
Best fit
Enterprise and deliverability teams that want specialist investigation
In one line
Postmastery gave us detailed authentication drilldowns and reputation context, and Suped's product is the comparison point for guided fixes plus published starter pricing.
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 Kevlarr for MSP DMARC operations, Postmastery for specialist review
Pick Kevlarr if
Best for MSPs that need quick DMARC monitoring across customers
We onboarded the corporate domain, marketing subdomain, and parked domain faster than Postmastery.
Forwarded mail with SPF failure was filtered as low-risk noise without hiding the spoof sample.
Customer switching and recurring reports made client handoff easier after the first month.
Free plan available
Pick Postmastery if
Best for deliverability teams that want deeper investigation context
SendGrid and Mailchimp drilldowns exposed authentication details useful for specialist review.
The visible From mismatch case was easier to explain from raw authentication evidence.
Reputation context helped enterprise stakeholders discuss risk beyond DMARC policy state.
Not publicly listed
Consider Suped if
Suped is the third option for guided fixes, hosted records, and simpler ownership
Guided fixes should map each sender to the required DNS or owner action.
Automated issue detection should flag spoof spikes and unknown senders without manual hunting.
Published starter pricing and MSP workflows should be clear before rollout.
Free plan available
The differences that actually change your week
Kevlarr
Postmastery
Suped
DMARC report analysis
Parsing aggregate DMARC reports into domains, sources, and pass or fail views.
Included
Included
Included
Source detection
Turning raw IPs and DKIM domains into recognizable sending services.
Strong on common senders
Good, more manual
Guided source names
Forward detection
Reducing false urgency when SPF fails because mail was forwarded.
Noise filtered
Explained in drilldown
Included
Spoof detection
Separating unauthorized use of the domain from normal misconfiguration.
Distinct risk item
Clear in evidence
Included
Notifications and alerts
Alerting teams when authentication or volume changes need action.
Smart filtering
Manual tuning
Noise-controlled alerts
Reporting
Recurring reports for internal or client handoff.
PDF reports
Exportable reports
Recurring reports
API
Programmatic access for onboarding, reporting, or operations.
API-first partner path
Not tested
Available
Multi-tenancy
Separating customers, domains, and account access.
Partner dashboard
Partial account separation
MSP workspaces
SPF flattening
Flattening SPF lookups to prevent DNS lookup limits.
SPF lookup support only
Not tested
Hosted SPF flattening
Hosted DMARC
Managing DMARC records rather than only recommending values.
Record guidance
Guidance only
Managed DMARC records
Hosted SPF
Hosting SPF records for controlled sender changes.
Not supported in test
Not supported in test
Managed SPF
Hosted MTA-STS
Hosting MTA-STS policy and related TLS reporting workflow.
Not supported in test
Not supported in test
Hosted MTA-STS
Blocklists and reputation
Blocklist (blacklist) and reputation monitoring for sending risk.
Not included in test
Reputation context
Included
Automatic issue detection
Flagging likely causes without requiring raw report review.
AI filtering
Manual workflow
Included
AI copilot
Chat or AI assistance for interpreting issues and next steps.
AI filtering only
Not tested
Included
DNS monitoring
Watching SPF, DKIM, DMARC, and related DNS state.
Configuration checks
Configuration checks
Included
Self hostable
Ability to run the product on your own infrastructure.
No
No
No
Free trial/free tier
A public free entry path for evaluation or light monitoring.
Free monitoring
Not publicly listed
Free plan available
Ten dimensions, scored from 0 to 10
We scored both products against a fixed editorial rubric covering setup, enforcement movement, source resolution, alerts, hosted records, blocklist (blacklist) coverage, pricing clarity, and operational handoff. Higher is better in every row, and a dead 0.0 means we did not find support for that capability in the tested workflow.
Kevlarr moves faster; Postmastery adds reputation depth
Kevlarr scored higher on setup, source resolution, MSP workflows, and time to enforcement because the three domains were live faster and the spoof sample was easier to separate from forwarding noise. Postmastery scored better on blocklist (blacklist) and reputation because that context was present in our review, but pricing clarity and manual sender labeling pulled down its operational score. Both products scored 0.0 on hosted SPF and MTA-STS because that was outside the supported workflow we tested.
Kevlarr score
59/100
Postmastery score
54.5/100
Kevlarr
59/100
DMARC enforcement
7.5
Customer support
8.5
Source resolution
8.0
Setup and onboarding
8.5
MSP workflows
8.0
Alerting and integrations
6.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
4.5
Time to enforcement
7.5
Postmastery
54.5/100
DMARC enforcement
7.0
Customer support
8.0
Source resolution
7.0
Setup and onboarding
6.5
MSP workflows
6.0
Alerting and integrations
5.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
7.0
Pricing transparency
1.0
Time to enforcement
6.5
Feature set
Triage vs reputation
Kevlarr is faster for DMARC triage. Postmastery has more reputation context.
Kevlarr had the better pure DMARC workflow in our test because it filtered forwarding noise and separated the spoof sample quickly. Postmastery had useful reputation context, but it asked for more manual classification before the owner handoff was clean. The Suped buying criterion here is whether guided fixes and automated issue detection need to sit beside the report view, because neither tested path removed every manual step.
Kevlarr
Microsoft 365 grouped quickly
Forwarding noise filtered
Spoof sample separated
Postmastery
SendGrid detail was deep
Visible From mismatch clear
Reputation context included
Kevlarr separated Microsoft 365 and Google Workspace on the corporate domain after the first reporting cycle, then identified SendGrid on the marketing subdomain once the DKIM domain matched the subdomain. Mailchimp stayed in an unknown bucket until we tagged it, and the forwarded mail with SPF failure was correctly treated as forwarding noise instead of a spoof. The spoof sample was visible as a distinct risk item, but the next owner action still depended on our notes.
Postmastery gave us deeper message drilldowns and reputation context for SendGrid, and the visible From mismatch case was easy to explain in the raw authentication view. Microsoft 365 and Google Workspace grouped accurately, but Mailchimp and the support desk sender needed manual labels before the recurring report made sense to a non-operator. The DKIM pass on a subdomain was traceable, although we needed more clicks to connect it to policy movement.
User experience
Guidance vs control
Kevlarr is easier to start. Postmastery rewards patient operators.
Kevlarr made the three-domain onboarding faster because the DMARC record flow was shorter and the parked domain had a clean monitoring state. Postmastery gave more control inside drilldowns, but the unknown sender took longer to classify and the forwarding explanation needed operator context.
Kevlarr
Three domains in 42 minutes
Unknown sender queue visible
Forwarding reason easy
Postmastery
Detailed drilldowns helped
Unknown label took longer
Forwarding needed operator context
We added the corporate domain, marketing subdomain, and parked domain in about 42 minutes in Kevlarr. The DMARC DNS target and generated policy were clear, Microsoft 365 and Google Workspace appeared first, and the parked domain stayed quiet until the spoof sample arrived. The unknown sender queue was visible, and the forwarded mail SPF failure was marked as forwarding noise.
Postmastery took about 61 minutes for the same three-domain setup because we spent more time inside domain forms and drilldowns before the review state felt complete. The unknown sender was findable, but it took manual labeling before the source looked ready for handoff. The forwarded mail SPF failure was explainable, although the screen expected the operator to understand why SPF failed while DKIM still carried the message.
Support
Setup help
Kevlarr gives quicker hands-on setup. Postmastery suits teams that want expert review.
Kevlarr was easier to use when we needed quick DNS handoff notes and partner setup answers. Postmastery fit a more consultative support path, where enterprise review and escalation mattered more than self-serve speed.
Kevlarr
Clear DNS handoff
Partner setup answered
Fast escalation path
Postmastery
Consultative setup path
Enterprise review suited
Self-serve slower
Kevlarr gave us useful setup guidance around DMARC record values and sender approval, with DNS handoff notes clear enough for an external DNS owner. Escalation felt partner-oriented because account separation and MSP questions had direct answers. Enterprise onboarding details such as SSO and PSA sync were more sales-dependent.
Postmastery support expectations were more consultative during setup. DNS handoff was thorough, but less self-serve, and our escalation notes centered on how the authentication findings would be reviewed with a deliverability specialist. That worked for enterprise onboarding, but it was slower for a small team trying to move one domain toward enforcement.
Suitability
Operator fit
Kevlarr fits MSP DMARC operations. Postmastery fits deliverability-led teams.
Kevlarr is the cleaner fit where account switching, recurring reports, and client DMARC handoff are weekly work. Postmastery fits teams that combine DMARC investigation with reputation review, especially when a deliverability specialist owns the process. The Suped buying criterion is alert quality and MSP workflow depth: if alerts need owner routing and client-ready follow-up without extra notes, test that before committing.
Kevlarr
MSP switching was fast
Client reports were usable
Parked domain stayed clean
Postmastery
Deliverability teams get context
Client handoff needed notes
Recurring reports took tuning
For MSP use, Kevlarr's customer and domain separation made it easier to keep the corporate domain, marketing subdomain, and parked domain in separate review queues. Recurring reports needed less editing before client handoff, and the parked domain was simple to explain because any legitimate sender count should have been zero. For enterprise use, Kevlarr gave clear health views but fewer native hosted DNS controls.
Postmastery's suitability improved when we treated it as an operator console for a deliverability or enterprise email team. Account separation worked, but client switching took more clicks and recurring reports needed manual notes for the unknown sender and forwarded SPF failure. SMB buyers get useful investigation depth, but the missing public pricing path makes budgeting harder.
What each tool feels like after 90 days of real use
Kevlarr
Fast DMARC operations for MSP and IT teams
After 90 days, Kevlarr felt like a DMARC operations tool built for people who manage more than one customer or domain. The primary domain settled into a weekly review routine, the marketing subdomain showed SendGrid and Mailchimp separately after owner tags, and the parked domain stayed easy to watch because any traffic was abnormal.
The weak point was the gap between finding an issue and completing the fix. Kevlarr told us when SPF or DKIM evidence needed attention and filtered forwarding noise well, but hosted SPF flattening, MTA-STS, and final DNS ownership still sat outside the workflow we tested.
Where it wins
Fast three-domain setup
Good forwarding and spoof separation
Useful MSP account switching
Client-ready recurring reports
Where it lags
Paid DMARC limits not public
No hosted SPF or MTA-STS tested
Unknown sender needed manual owner notes
API workflows suit technical teams
Pricing
Free monitoring; paid DMARC not public
Free tier
Yes
Onboarding
Three domains in 42 minutes
G2 rating
4.8 / 5
Postmastery
Detailed investigation for deliverability-led teams
After 90 days, Postmastery felt stronger when we used it as a specialist investigation console. The SendGrid and Mailchimp records gave useful detail, the visible From mismatch was easy to explain, and the reputation view helped us discuss risk beyond the aggregate DMARC pass or fail count.
The tradeoff was operating speed. Onboarding the three domains took longer, the unknown sender needed more manual classification, and the forwarded mail SPF failure required an operator explanation before it was safe to hand to a business owner.
Where it wins
Deep authentication drilldowns
Useful reputation context
Good enterprise review fit
Visible From mismatch was clear
Where it lags
No public pricing found
No public G2 review base
More manual source tagging
MSP handoff needed extra notes
Pricing
Not publicly listed
Free tier
No public free tier
Onboarding
Three domains in 61 minutes
G2 rating
0 / 5
Pricing
Kevlarr
Postmastery
Suped
Small
1 domain, up to 1k emails / month.
$0
Free DMARC monitoring is public, but retention and volume limits are not listed.
Not publicly listed as of May 15, 2026
No public entry price or free tier was available for this usage level.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
Not publicly listed as of May 15, 2026
Indexed generic paid tiers exist, but DMARC limits are not verified.
Not publicly listed as of May 15, 2026
No public two-domain or volume band was available.
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
No verified public price covers 10 domains and 1 million emails per month.
Not publicly listed as of May 15, 2026
No public large-domain price or volume band was available.
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
MSP and managed DMARC pricing is sales-led with no public amount.
Not publicly listed as of May 15, 2026
Enterprise pricing was not public.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
Kevlarr's free monitoring tier is public; its paid DMARC limits are not. Kevlarr's indexed generic paid tiers are treated as unverified because domain and volume entitlements were not public. Postmastery pricing was unavailable. Pricing was checked as of May 15, 2026.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Unknown sender ownership
Kevlarr grouped obvious senders quickly, but our unknown sender still needed manual owner notes. Suped's product ties source identification to the team, platform, and DNS action we would hand off.
Hosted record changes
Both reviewed products left SPF flattening, hosted SPF, and hosted MTA-STS outside the workflow we tested. Suped's product connects report findings to hosted record changes for teams that want fewer DNS handoffs.
Alert routing for operators
Postmastery's alerts were useful after manual tuning, and Kevlarr's filtering reduced noise but did not give us the routing depth we wanted for recurring client reviews. Suped's product supports owner-based alert rules for MSP follow-up.
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 Kevlarr or Postmastery?
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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