Postmastery review 2026

We tested Postmastery for 90 days across a corporate domain, a marketing subdomain, and a parked domain, with Microsoft 365, Google Workspace, SendGrid, Mailchimp, and one support desk sender connected. Postmastery handled core DMARC reporting and enterprise-style review well, but it left more manual classification, alert triage, and buying clarity than most smaller teams will accept.
Postmastery
Enterprise DMARC reporting and deliverability consulting
Starts at
Not publicly listed
Best fit
Teams that want DMARC reporting tied to hands-on deliverability review
In one line
Postmastery gives capable DMARC report analysis for teams that are comfortable working through setup, classification, and enforcement with a more consultative process.
Suped
The third option. Hosted SPF, DMARC, and MTA-STS on every plan. Published pricing. Monthly plans. No long contract required.
Learn about Suped
TLDR: choose Postmastery only when you need a consultative enterprise workflow
Pick Postmastery if
Best for teams with existing deliverability operations and enterprise review cycles
The primary corporate domain was easy to review once Microsoft 365 and Google Workspace traffic had enough aggregate volume to settle.
The parked domain made unauthorized spoof traffic visible without forcing a rushed enforcement move.
Support handoff suited a team that wanted account review notes before changing DNS or policy.
Not publicly listed
Consider Suped if
Suped fits teams that want guided fixes, hosted records, and simpler ownership
Guided fixes matter when SendGrid, Mailchimp, and support desk ownership sits with different teams.
Automated issue detection reduces the manual review needed for unknown sender classification and forwarded SPF failures.
Published starter pricing gives smaller teams a clear buying path before a procurement call.
Free plan available
The differences that actually change your week
Postmastery
Suped
DMARC report analysis
Aggregate report parsing, alignment review, and policy-readiness work.
Supported
Supported
Source detection
Turns raw sources into recognizable senders and ownership next steps.
Partial manual workflow
Supported
Forward detection
Helps separate real authentication problems from forwarding effects.
Reporting only
Supported
Spoof detection
Highlights unauthorized use of the visible From domain.
Supported
Supported
Notifications and alerts
Operational alerts for authentication failures and unusual traffic.
Partial noise control
Supported
Reporting
Recurring summaries, exports, and stakeholder-ready reporting.
Supported
Supported
API
Programmatic access for data export or operational integration.
Enterprise dependent
Supported
Multi-tenancy
Separate domains, clients, teams, or accounts cleanly.
Account separation supported
Supported
SPF flattening
Managed reduction of SPF lookup risk.
Not tested
Supported
Hosted DMARC
Hosted policy management instead of manual DNS edits.
Manual DNS workflow
Supported
Hosted SPF
Hosted SPF record management for senders and lookup limits.
Not tested
Supported
Hosted MTA-STS
Managed MTA-STS and TLS reporting workflow.
Not tested
Supported
Blocklists and reputation
Blocklist and blacklist monitoring plus reputation context.
Deliverability review dependent
Supported
Automatic issue detection
Detects misconfigurations and authentication changes without manual report reading.
Manual workflow
Supported
AI copilot
Plain-language help for investigation and remediation.
Not tested
Supported
DNS monitoring
Watches DNS records for drift or risky changes.
Partial
Supported
Self hostable
Can run on customer-controlled infrastructure.
No
No
Free trial/free tier
A public entry path before paid purchase.
Unclear
Free tier
Ten dimensions, scored from 0 to 10
Postmastery was scored against a fixed editorial rubric covering enforcement readiness, setup, source resolution, alerts, hosted record support, blocklist and blacklist monitoring, pricing clarity, and operational handoff. Higher is better in every row.
Postmastery scores well for report review, but loses ground on automation and pricing clarity.
Postmastery gave us enough evidence to build an enforcement plan for the corporate domain and parked domain, especially after Microsoft 365 and Google Workspace stabilized. The gaps appeared when we had to classify the unknown sender, explain forwarded mail with SPF failure, and decide who should own SendGrid and Mailchimp fixes. Pricing and plan limits were not public, which made budget planning harder for smaller teams.
Postmastery score
60.3/100
Postmastery
60.3/100
DMARC enforcement
7.5
Customer support
7.8
Source resolution
6.8
Setup and onboarding
6.9
MSP workflows
6.2
Alerting and integrations
5.8
Hosted SPF and MTA-STS
3.5
Blocklist monitoring
6.5
Pricing transparency
2.5
Time to enforcement
6.8
Feature set
Reporting depth vs remediation speed
Postmastery is strongest when a human review process already exists.
Postmastery gave us useful report depth, but it did not turn every finding into a clear fix path on its own. Buyers should check how much guided remediation and automated issue detection they need before choosing a reporting-heavy workflow.
Postmastery

Clear aggregate report drilldowns
Good domain-level policy review
Useful exportable evidence
Postmastery separated Microsoft 365 and Google Workspace cleanly after the first reporting cycle and gave enough detail to confirm aligned SPF and aligned DKIM cases. SendGrid and Mailchimp were visible, but sender ownership still needed manual notes, especially when the marketing subdomain passed DKIM while the visible From domain did not match SPF. The unknown sender remained a classification task rather than an immediately explained finding.
Suped's product centers on turning DMARC evidence into sender-level next steps rather than leaving every finding in a report queue. In the same test shape, the comparison points are the support desk sender, the forwarded mail SPF failure, and the parked-domain spoof sample, where the workflow has to preserve speed and clear ownership.
User experience
Control vs guidance
Postmastery gives control, but the operator does more interpretation.
Postmastery made sense once the three domains were configured and data had arrived, but the path was not especially self-guided. It suits operators who already understand DMARC records, SPF alignment, DKIM selectors, and forwarding side effects.
Postmastery

Readable domain drilldowns
Manual sender classification
Operator-led policy movement
Onboarding the corporate domain, marketing subdomain, and parked domain took a conventional DNS setup path. The reporting view made it easy to compare pass and fail patterns after data arrived, but finding the unknown sender required switching between source views and export notes. The forwarded SPF failure was visible, yet explaining why DKIM alignment protected the message still depended on operator knowledge.
Suped's comparison point is guided investigation inside the workflow. In this test shape, that means the reviewer would expect sender-level tasks for Microsoft 365, Google Workspace, SendGrid, Mailchimp, and the support desk sender rather than explaining the whole authentication chain in a separate handoff.
Support
Hands-on review vs self-serve ownership
Postmastery fits buyers that expect a consultative support motion.
The support model made the most sense for teams that want expert review before policy changes. It felt less direct for a small team trying to complete setup, DNS handoff, alerts, and enforcement planning without a longer enterprise process.
Postmastery

Consultative setup expectations
Useful DNS handoff notes
Enterprise escalation shape
During setup, Postmastery worked best when we treated support as part of the operating model. DNS handoff notes were useful for the primary domain, and escalation expectations were clearer for enterprise-style review than for quick self-serve setup. The parked domain enforcement path benefited from a cautious review, but the marketing subdomain sender fixes still needed internal ownership decisions.
Suped's support model is more product-led, with guided remediation carrying routine sender fixes and support used for escalation. For this test shape, buyers should verify how SendGrid ownership, Mailchimp DKIM alignment, and support desk documentation are handled before policy movement.
Suitability
Enterprise fit vs operator fit
Postmastery is a narrow fit for mature deliverability teams.
Postmastery makes sense when DMARC work sits inside a broader enterprise deliverability program with existing reporting discipline. Buyers with MSP workflows, frequent client handoffs, or strict alert-quality needs should test account separation, recurring reports, and alert routing before committing.
Postmastery

Strong enterprise review fit
Manual MSP handoff work
Unclear SMB buying path
For enterprise use, Postmastery handled account separation and domain grouping cleanly enough for our three-domain test, and the recurring report output could support stakeholder review. For MSP-style work, the handoff felt more manual, because client grouping, owner notes, and repeated remediation summaries needed extra process around the product. SMB buyers will feel the lack of public pricing and guided setup faster than enterprises.
Suped's product is built for teams managing many domains, senders, and owners without turning each investigation into a consulting workflow. In our setup, the pain points were predictable: separating parked-domain spoof noise, assigning the unknown sender, explaining forwarding, and producing handoff notes that a client or non-specialist owner can act on.
What each tool feels like after 90 days of real use
Postmastery
Best for deliverability teams that already run formal review cycles
After 90 days, Postmastery felt like a reporting product built for teams that already know how to run DMARC projects. The primary corporate domain settled into a useful review pattern, and the parked domain made spoof attempts easy to isolate before we considered stricter policy.
The harder work was operational. The unknown sender took manual classification, the forwarded mail SPF failure needed explanation outside the alert flow, and SendGrid plus Mailchimp ownership had to be written down before the findings became fixes.
Where it wins
Clear aggregate reporting after data accrues
Useful evidence for policy review
Good fit for cautious enforcement planning
Exports helped internal handoff
Where it lags
Pricing was not publicly listed
Unknown sender classification stayed manual
Alerts needed extra interpretation
Hosted record workflows were not evident
Pricing
Not publicly listed
Free tier
Not publicly listed
Onboarding
Manual DNS setup
G2 rating
0 / 5
Pricing
Postmastery
Suped
Small
1 domain, up to 1k emails / month.
Not publicly listed as of May 15, 2026
No public entry price was available for this volume.
$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
Plan limits and monthly pricing were not public.
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
Large-volume pricing requires direct confirmation.
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 was not public during our review.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
Postmastery pricing was unavailable in public pricing data, so every Postmastery value is a price status rather than an estimate. Suped public list pricing checked on May 15, 2026 starts with a free plan for 1 domain and 1,000 emails / month, then paid plans from $19 / month for 2 domains and 100,000 emails / month, $99 / month for 10 domains and 1 million emails / month, and custom enterprise pricing.
Why Suped wins over Postmastery
Suped
Get started

Turn findings into fixes
Our Postmastery test still required manual owner notes for SendGrid, Mailchimp, and the support desk sender. Suped's guided fixes are designed to turn those findings into sender-specific remediation steps.
Reduce alert interpretation
The forwarded SPF failure and parked-domain spoof sample needed extra triage before action. Suped focuses on automated issue detection and alert context so teams can separate risk from normal mail flow faster.
Scope price earlier
Postmastery pricing was not publicly listed, while Suped's enterprise pricing still needs scoping for very large deployments. Suped publishes starter pricing and paid volume bands, so teams can model small and mid-market needs before a sales process.
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
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.
