Skysnag vs.
Postmastery in 2026
Skysnag
4.6/5
Postmastery
0.0/5
vs.
We tested Skysnag and Postmastery for 90 days across a primary corporate domain, a marketing subdomain, and a parked domain, using Microsoft 365, Google Workspace, SendGrid, Mailchimp, and a support desk sender. The controlled cases included SPF and DKIM passes with matching domains, an SPF pass with a visible From mismatch, a DKIM pass on a subdomain, forwarded mail with SPF failure, one spoof sample, and one unknown sender. Skysnag gave us the clearer path to hosted authentication and enforcement, while Postmastery made more sense for teams that already run deliverability operations and want DMARC data beside reputation signals.
Ava Chen
System Administrator, Suped
Published 5 Nov 2025
Updated 5 Jun 2026
8 min read
Summarize with
Skysnag
Hosted DMARC enforcement
Starts at
From $39 / month
Best fit
Security and infrastructure teams moving multiple domains toward enforcement
In one line
Skysnag moved our SPF mismatch, spoof sample, and DKIM subdomain case toward enforcement quickly; teams that need guided fixes should benchmark that workflow against Suped's product.
Postmastery
Deliverability-led DMARC monitoring
Starts at
Not publicly listed
Best fit
Deliverability teams that already interpret reputation and DMARC data
In one line
Postmastery gave us useful DMARC and reputation context, but sender ownership took more manual tagging before the parked domain was safe to tighten.
Suped
The third option. Hosted SPF, DMARC, and MTA-STS on every plan. Published pricing. Monthly plans. No long contract required.
Learn more
Pick Skysnag for enforcement, Postmastery for operator-led monitoring
Pick Skysnag if
Best for teams that want hosted authentication and enforcement support
Microsoft 365 and Google Workspace were recognized without long manual notes.
SPF mismatch and spoof samples produced clear remediation tasks.
Hosted SPF and MTA-STS kept DNS ownership in one workflow.
From $39 / month
Pick Postmastery if
Best for deliverability operators who want DMARC inside a wider monitoring routine
Reputation and DMARC views helped explain the support desk sender.
Forwarded mail with SPF failure was easier to discuss with operators.
SendGrid and Mailchimp needed more manual owner tagging before action.
Not publicly listed
Consider Suped if
Suped's product is the third option for guided fixes, hosted records, and simpler ownership
Guided fixes connect each failing source to the DNS or sender owner.
Automated issue detection separates spoofing, forwarding, and configuration drift.
Published starter pricing starts with a free plan and $19 / month paid entry.
Free plan available
The differences that actually change your week
Skysnag
Postmastery
Suped
DMARC report analysis
Turns aggregate traffic into domain and sender views.
Aggregate and forensic reports
DMARC report analysis
Aggregate analysis with source grouping
Source detection
Identifies legitimate senders and unknown traffic.
Intelligent sender recognition
Supported, more manual tagging
Sending source identification
Forward detection
Separates forwarding failures from direct spoofing.
Partial, flagged forwarded SPF failures
Partial, readable forwarding context
Forwarding classification
Spoof detection
Highlights unauthorized use of the visible From domain.
Clear spoof separation
Supported in DMARC views
Spoof detection
Notifications and alerts
Routes failures and changes to operators.
Automated security alerts
Supported, routing needed tuning
Operational alerts
Reporting
Provides recurring reporting for stakeholders or clients.
Audited reports and exports
Reports and exports available
Recurring reports and exports
API
Supports integration with internal workflows.
Included
Available, scope unclear
API supported
Multi-tenancy
Keeps clients, brands, or business units separated.
MSP/MSSP management
Account separation, manual handoff
Multi-tenant workspaces
SPF flattening
Reduces SPF lookup risk through managed records.
SPF optimization and hosting
Not supported in our test
Hosted SPF flattening
Hosted DMARC
Hosts or manages the DMARC record workflow.
Hosted DMARC
Reporting only in our test
Hosted DMARC
Hosted SPF
Hosts or manages SPF records.
Hosted SPF
Not supported in our test
Hosted SPF
Hosted MTA-STS
Hosts or manages MTA-STS policy and TLS reporting.
Hosted MTA-STS and TLS-RPT
Not supported in our test
Hosted MTA-STS
Blocklists and reputation
Monitors blocklist and blacklist signals.
Blocklist and blacklist monitoring
Reputation and blacklist context
Blocklist and reputation monitoring
Automatic issue detection
Flags configuration or sender issues without manual report review.
Automated issue alerts
Partial, manual triage needed
Automatic issue detection
AI copilot
Uses an assistant workflow to explain or route issues.
Not tested
Not tested
AI copilot
DNS monitoring
Detects DNS record drift and risky changes.
Continuous DNS monitoring
Record checks and monitoring
DNS monitoring
Self hostable
Can be installed and operated on your own infrastructure.
No
No
No
Free trial/free tier
Gives teams a no-cost way to start testing.
14-day free trial
Not publicly listed
Free plan available
Ten dimensions, scored from 0 to 10
We scored both products against a fixed editorial rubric using the same 90-day setup, the same three domains, and the same authentication cases. Higher is better in every row.
Skysnag scores higher on hosted enforcement, Postmastery holds up for operator-led monitoring
Skysnag pulled ahead where the work depended on hosted SPF, hosted MTA-STS, DNS monitoring, and moving the parked domain toward reject after the spoof sample. Postmastery was useful for reputation review and explaining the forwarded SPF failure, but it left more manual work around owner tagging, pricing discovery, and record hosting. The zero hosted SPF/MTA-STS score reflects what we did not use in the test, not a judgment on its consulting depth.
Skysnag score
78.5/100
Postmastery score
57/100
Skysnag
78.5/100
DMARC enforcement
8.5
Customer support
8.0
Source resolution
8.0
Setup and onboarding
7.5
MSP workflows
7.5
Alerting and integrations
7.0
Hosted SPF and MTA-STS
9.0
Blocklist monitoring
8.0
Pricing transparency
7.0
Time to enforcement
8.0
Postmastery
57/100
DMARC enforcement
6.5
Customer support
8.0
Source resolution
7.0
Setup and onboarding
6.5
MSP workflows
6.5
Alerting and integrations
6.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
7.5
Pricing transparency
2.0
Time to enforcement
6.5
Feature set
Hosted depth vs operator context
Skysnag wins on hosted enforcement, Postmastery wins on deliverability context
Skysnag had the broader DMARC control plane in our test because hosted SPF, hosted DMARC, hosted MTA-STS, DNS monitoring, and blocklist (blacklist) checks lived close to the report workflow. Postmastery gave us useful operator context around reputation and forwarding, but it asked for more manual classification before policy movement. When buying, score guided fixes and automated issue detection explicitly; Suped's product treats those as first-order workflow requirements.
Skysnag
4.6/5
Microsoft 365 grouped cleanly
SendGrid owner hints worked
Mismatch cases surfaced fast
Postmastery
0/5
Google Workspace drilldowns useful
Mailchimp classification needed review
Forwarding context was readable
Skysnag recognized Microsoft 365 and Google Workspace on the corporate domain within the first reporting cycle, then grouped SendGrid and Mailchimp under expected marketing senders after we approved them. The SPF pass with visible From mismatch was called out as a domain-match problem, and the unauthorized spoof sample was separated from normal failures instead of being buried in aggregate traffic. The unknown support desk sender needed a manual owner decision, but the product gave enough source detail to assign it.
Postmastery gave us a solid view of Microsoft 365 and Google Workspace traffic and made the forwarded mail SPF failure easier to explain because the drilldown kept authentication result and sending path close together. SendGrid and Mailchimp were visible, but classification took more notes before we were ready to use the data for DMARC policy movement. The DKIM pass on a subdomain was readable, though less action-oriented than Skysnag's hosted-record workflow.
User experience
Control vs guidance
Skysnag gives faster setup, Postmastery rewards experienced operators
Skysnag was easier to get into a working state across the three domains, especially when adding hosted records and approving known senders. Postmastery exposed enough detail for a deliverability operator, but the path from finding the unknown sender to assigning next action was slower.
Skysnag
4.6/5
Three-domain setup was quick
Unknown sender got flagged
Forwarding explanation was plain
Postmastery
0/5
Domain setup needed notes
Unknown sender search was slower
Forwarding detail helped operators
Onboarding the corporate domain, marketing subdomain, and parked domain took a predictable sequence of DNS checks, report address setup, and sender approval in Skysnag. The unknown support desk sender appeared in a source view with enough identifiers to compare it against mail headers, and the forwarded SPF failure was explained as a forwarding path problem rather than a spoof. Some screens were dense, but the tasks were easier to hand to a DNS owner.
Postmastery took more setup notes because account structure, domain grouping, and sender classification were less prescriptive during our test. Finding the unknown sender required more filtering across report drilldowns, but the forwarded SPF failure had useful authentication context once we reached the right view. The product felt better for teams that already know how to interpret DMARC aggregate data.
Support
Hands-on help vs scoped expertise
Skysnag gives clearer setup handoff, Postmastery fits teams buying expert help
Skysnag's support model felt more packaged around DNS setup, hosted record handoff, and enforcement movement. Postmastery felt more consultative, which works when the buyer already expects a specialist engagement and knows what must be escalated.
Skysnag
4.6/5
DNS handoff was concrete
Escalation path was defined
Enterprise onboarding felt structured
Postmastery
0/5
Consulting context was strong
Setup expectations needed scoping
Escalation depended on engagement
During setup, Skysnag gave clearer expectations for which DNS records had to change and which records were eligible for hosting. The handoff notes for SPF, DMARC, and MTA-STS were specific enough for an infrastructure owner, and the enterprise path had visible support cues for escalation. The weakest moment was explaining a sender that needed business-owner approval, where the product still relied on our internal routing.
Postmastery support expectations felt tied to expert deliverability work rather than a self-serve checklist. That helped when discussing reputation signals and the forwarded SPF failure, but DNS handoff and enterprise onboarding needed more scoping before a non-specialist had enough to act. For escalation, we would define owner, response time, and reporting cadence before rollout.
Suitability
Enterprise fit vs operator fit
Skysnag fits enforcement programs, Postmastery fits deliverability teams
Skysnag fits enterprise and agency teams that want hosted authentication records and enforcement movement inside one product. Postmastery fits operators who already run deliverability reviews and want DMARC data beside reputation checks. For MSP buyers, recurring reports, alert routing, and client handoff notes should be scored directly; Suped's product keeps those workflows closer to the day-to-day queue.
Skysnag
4.6/5
Enterprise domain grouping worked
MSP separation was usable
Reports supported handoff
Postmastery
0/5
Operator teams get depth
Client handoff needed notes
SMBs need more guidance
Skysnag fit the enterprise and MSP parts of our test better when account separation, domain grouping, and recurring reports mattered. The corporate domain, marketing subdomain, and parked domain were easier to discuss as separate enforcement tracks, and client handoff notes were workable after we tagged the approved senders. SMBs still need a DNS owner or support help, especially where hosted SPF and MTA-STS are part of the plan.
Postmastery fit the operator-led profile: a deliverability team that checks DMARC, reputation, and blocklist (blacklist) signals together and then writes the next action. Account separation and recurring reporting were usable but less packaged for MSP client handoff. For SMBs, the product asked for too much interpretation unless an outside deliverability operator owned the process.
What each tool feels like after 90 days of real use
Skysnag
Best for enforcement teams with DNS ownership
After 90 days, Skysnag felt like a DMARC enforcement product with reporting attached. Microsoft 365 and Google Workspace became routine sources, SendGrid and Mailchimp were easy to approve, and the parked-domain spoof sample gave us enough confidence to plan a move toward reject.
Skysnag's rough edges showed up when a sender needed business ownership rather than a technical fix. The support desk sender still needed our classification notes, and pricing for domain expansion or larger volume required confirmation even though the $39 / month entry point was clear.
Where it wins
Hosted SPF, DMARC, and MTA-STS
Clear spoof sample separation
Good Microsoft 365 grouping
Useful enforcement path
Where it lags
Unknown sender ownership still manual
Pricing volume bands need confirmation
Dense screens for new admins
More domains need scoping
Pricing
From $39 / month
Free tier
14-day free trial
Onboarding
Guided DNS setup
G2 rating
4.6 / 5
Postmastery
Best for teams with deliverability operators
After 90 days, Postmastery felt strongest when we treated DMARC as one input in a deliverability operating routine. The forwarded SPF failure was easier to explain once we were inside the drilldown, and reputation context helped make sense of noisy sending paths.
Postmastery felt slower when the task was moving a domain toward enforcement. The unknown support desk sender needed more manual tagging, SendGrid and Mailchimp owner notes took longer, and pricing remained unavailable for basic procurement planning.
Where it wins
Useful reputation context
Readable forwarding drilldowns
Good for deliverability operators
Service-led review fit
Where it lags
No public pricing found
More manual sender tagging
No hosted SPF workflow tested
Less packaged for MSP handoff
Pricing
Not publicly listed
Free tier
Not publicly listed
Onboarding
Manual scoping
G2 rating
0 / 5
Pricing
Skysnag
Postmastery
Suped
Small
1 domain, up to 1k emails / month.
$39 / month
Comply covers two domains publicly, so one small domain fits the entry plan.
Not publicly listed as of May 15, 2026
No public small-domain price or monthly email cap was available.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
$39 / month
Comply should cover two domains; exact current volume caps need confirmation.
Not publicly listed as of May 15, 2026
No public two-domain price 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.
Custom
Ten domains exceed the public two-domain tier, so expansion pricing needs quote confirmation.
Not publicly listed as of May 15, 2026
No public ten-domain price or large-volume plan was available.
10 domains and 1,000,000 monthly emails, with 365 days retention.
Enterprise
Over 20 domains and 1 million emails / month.
Custom
Suite is the public enterprise path for unlimited or negotiated domain and volume needs.
Not publicly listed as of May 15, 2026
No public enterprise price, limits, or volume bands were available.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
Skysnag's $39 / month Comply and $249 / month Protect figures are public list prices; larger-domain and enterprise rows use estimate or quote status because add-on domain pricing and exact volume bands were not public. Postmastery pricing was not publicly available in the pricing information we checked. 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
Skysnag classified most SendGrid and Mailchimp traffic, but the unknown support desk sender still needed analyst judgment; Suped's product pairs source identification with owner-ready fix steps.
Cleaner operating alerts
Postmastery surfaced reputation and DMARC events, but alert routing needed manual tuning in our Microsoft 365 and forwarded-mail cases; Suped's product focuses alerts on the owner and failure type.
Published small-team entry
Postmastery pricing was not public and Skysnag volume and domain expansion needed confirmation at larger scopes; Suped publishes a free plan and paid tiers starting at $19 per month.
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 Skysnag 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
How MONEYME proactively strengthens domain security and unlocks higher email engagement with Suped
See how MONEYME uses Suped
How cybersecurity specialist Jam Cyber delivers scalable DMARC protection with Suped
See how Jam Cyber uses Suped
How DigiBean simplified DMARC monitoring and improved email security for their MSP clients
See how DigiBean uses Suped
How Alliance Group moved from reactive guesswork to proactive email management with Suped
See how Alliance Group uses Suped
How Suped gave Maaser the confidence to finally move to strict DMARC enforcement
See how Maaser uses Suped
