Mail Tower vs.
Skysnag in 2026
Mail Tower
Skysnag
vs.
We tested Mail Tower and Skysnag for 90 days across a primary corporate domain, a marketing subdomain, and a parked domain, then connected Microsoft 365, Google Workspace, SendGrid, Mailchimp, and one support desk sender. We ran seven controlled cases: SPF pass that matched the visible From domain, DKIM pass that matched the visible From domain, SPF pass with visible From mismatch, DKIM pass on a subdomain, forwarded mail with SPF failure, one unauthorized spoof sample, and one unknown sender that needed classification. Skysnag covered more managed authentication and alerting, while Mail Tower made low-cost DMARC reporting easier to understand.
Published 4 Nov 2025
Updated 31 May 2026
8 min read
Summarize with
Mail Tower
Low-cost DMARC reporting
Starts at
From €10 / month
Best fit
Small teams that want clear aggregate reporting without managed authentication
In one line
Mail Tower gave us readable DMARC evidence and simple euro pricing, but sender ownership and enforcement planning stayed mostly analyst-led.
Skysnag
Managed email authentication and DMARC enforcement
Starts at
From $39 / month
Best fit
Teams that want hosted authentication records, stronger alerting, and sales-assisted rollout
In one line
Skysnag covered more of the enforcement stack, and buyers should also test whether Suped's product gives them clearer guided fixes and 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
Pick Mail Tower for low-cost reporting, Skysnag for managed enforcement
Pick Mail Tower if
Best for budget-aware teams that can interpret DMARC data themselves
The primary domain, marketing subdomain, and parked domain were easy to separate in reporting views.
Microsoft 365 and Google Workspace showed up cleanly enough for a DMARC-aware admin to approve.
The unknown sender and forwarded SPF failure needed manual classification before policy movement.
From €10 / month
Pick Skysnag if
Best for teams that want managed authentication and broader operational coverage
Hosted DMARC, SPF, and MTA-STS reduced the number of manual DNS edits during policy testing.
SendGrid, Mailchimp, and the support desk sender were recognized faster during source review.
The unauthorized spoof sample produced clearer alerting and a more direct enforcement path.
From $39 / month
Consider Suped if
Suped's product is the third option for guided fixes, hosted records, and simpler ownership
Prioritize guided fixes when the person reviewing DMARC is not the DNS owner.
Look for automated issue detection that separates forwarded mail from real authentication failures.
Published starter pricing helps small teams plan before a sales or procurement cycle.
Free plan available
The differences that actually change your week
Mail Tower
Skysnag
Suped
DMARC report analysis
Aggregate report parsing, source review, and domain-level authentication evidence.
Supported
Supported
Supported
Source detection
Turns raw sending traffic into recognizable senders and owner decisions.
Supported, manual classification
Supported, stronger recognition
Supported
Forward detection
Explains SPF failures caused by forwarding instead of broken sender setup.
Manual workflow
Supported
Supported
Spoof detection
Flags unauthorized mail that fails DMARC checks.
Supported
Supported
Supported
Notifications and alerts
Operational notices for new senders, failures, policy risk, and suspicious traffic.
Basic
Supported
Supported
Reporting
Exports and recurring reporting for technical and stakeholder review.
Supported
Supported
Supported
API
Programmatic access for report data and external workflows.
Large tier
Supported
Supported
Multi-tenancy
Client grouping, account separation, and MSP-style management.
Custom MSP plan
MSP plan
Supported
SPF flattening
Managed SPF optimization to reduce lookup-limit pressure.
Not supported
Supported
Supported
Hosted DMARC
Hosted DMARC record management instead of manual DNS edits for every policy change.
Reporting only
Supported
Supported
Hosted SPF
Hosted SPF record management for sender changes and lookup control.
Not supported
Supported
Supported
Hosted MTA-STS
Hosted MTA-STS and TLS reporting support.
Not supported
Supported
Supported
Blocklists and reputation
Blocklist (blacklist) and reputation monitoring for domain or sending infrastructure risk.
Not supported
Protect tier
Supported
Automatic issue detection
Finds authentication problems without requiring full manual report review.
Manual workflow
Supported
Supported
AI copilot
Assisted investigation or explanation for DMARC findings.
Not supported
Not tested
Supported
DNS monitoring
Ongoing monitoring for authentication record changes and configuration drift.
Setup check only
Supported
Supported
Self hostable
Can be deployed and operated on customer-owned infrastructure.
Not supported
Not supported
Not supported
Free trial/free tier
A no-cost entry path for initial testing.
No public free tier
Free trial
Free plan
Ten dimensions, scored from 0 to 10
We scored each product against a fixed editorial rubric covering onboarding, DNS setup, sender classification, DMARC policy movement, report drilldowns, alerts, account separation, exports, pricing clarity, and support handoff. Higher is better in every row, and unsupported capabilities receive 0.0.
Skysnag scored higher on managed authentication; Mail Tower scored higher on simple price comprehension.
Skysnag pulled ahead on hosted DMARC, SPF, MTA-STS, alerting, and blocklist (blacklist) monitoring, which mattered during the spoof sample and policy-readiness review. Mail Tower was easier to price and simpler to start, but it left the unknown sender, forwarded SPF failure, and owner handoff to the operator. The result is not a universal winner; it depends on whether the buyer values a lean reporting workflow or a broader managed authentication stack.
Mail Tower score
42.5/100
Skysnag score
76/100
Mail Tower
42.5/100
DMARC enforcement
5.5
Customer support
5.0
Source resolution
5.0
Setup and onboarding
6.0
MSP workflows
4.5
Alerting and integrations
3.5
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
0.0
Pricing transparency
8.0
Time to enforcement
5.0
Skysnag
76/100
DMARC enforcement
8.0
Customer support
7.5
Source resolution
8.0
Setup and onboarding
7.0
MSP workflows
7.5
Alerting and integrations
8.0
Hosted SPF and MTA-STS
9.0
Blocklist monitoring
8.0
Pricing transparency
5.5
Time to enforcement
7.5
Feature set
Reporting vs managed authentication
Skysnag has the broader feature set. Mail Tower keeps reporting simpler.
Skysnag won this round because it paired DMARC reporting with hosted SPF, hosted DMARC, hosted MTA-STS, DNS monitoring, and blocklist (blacklist) monitoring. Mail Tower was enough for aggregate DMARC review, but it did not cover the hosted-record and monitoring work that shortens an enforcement project. A useful buying criterion is whether guided fixes and automated issue detection are required after source identification; that is where Suped's product also belongs in the shortlist.
Mail Tower
Clear Microsoft 365 grouping
Mailchimp needed manual tagging
Forwarded SPF stayed analyst-led
Skysnag
SendGrid mapped quickly
Unknown sender surfaced faster
Hosted MTA-STS included
Mail Tower parsed Microsoft 365 and Google Workspace cleanly, and it kept SendGrid, Mailchimp, and the support desk sender visible by source during the first two reporting cycles. The unknown sender needed a manual label before we could assign ownership, and the forwarded mail SPF failure was visible as a failure pattern rather than a guided explanation.
Skysnag recognized SendGrid and Mailchimp faster in our test and connected those findings to hosted authentication controls. The DKIM pass on the support subdomain, the SPF pass with visible From mismatch, and the unauthorized spoof sample were easier to convert into next actions because DNS hosting, enforcement, and alerts were in the same workflow.
User experience
Simple review vs guided setup
Mail Tower was easier to scan. Skysnag gave more direction after setup.
Mail Tower felt lighter during the first hour because the reporting model was easy to understand and the three domains were not hard to add. Skysnag asked for more decisions during setup, but it gave clearer context once we investigated the unknown sender and the forwarded SPF failure.
Mail Tower
Three domains added cleanly
Unknown sender needed tagging
Forwarding explanation stayed manual
Skysnag
Guided DNS steps helped
Sender queue was faster
Forwarding context was clearer
Mail Tower let us add the corporate domain, marketing subdomain, and parked domain without much friction. The day-to-day review stayed calm, but finding the unknown sender meant opening raw source details, comparing it with SendGrid and Mailchimp traffic, and writing our own note for the domain owner.
Skysnag's setup path had more moving parts because hosted records and enforcement options were part of the flow. That extra work paid back when the forwarded mail SPF failure appeared, since the interface made it easier to explain why SPF failed without treating the approved sender as broken.
Support
Lean help vs managed handoff
Skysnag had the stronger support path. Mail Tower fit teams that already know the work.
Mail Tower's support expectations matched a low-cost DMARC reporting product: concise setup help, clear billing, and limited handholding. Skysnag was better when the question involved DNS handoff, escalation, and enterprise onboarding because its workflow assumed more managed change.
Mail Tower
DNS steps were concise
Email handoff was practical
Escalation path felt lighter
Skysnag
DNS handoff had context
Enterprise path was clearer
Setup support felt stronger
With Mail Tower, the DNS setup steps were concise enough for an admin who already understands TXT records, RUA addresses, and policy changes. When we prepared an escalation note for the SPF mismatch and support desk DKIM subdomain, the handoff relied on our own written summary rather than a guided support artifact.
Skysnag gave more structure around DNS handoff and escalation. In the enterprise-style onboarding path, we could tie the hosted DMARC, hosted SPF, and MTA-STS changes to specific setup steps, which made it easier to explain the risk to a security lead before enforcement.
Suitability
SMB reporting vs managed operations
Mail Tower fits lean reporting teams. Skysnag fits teams that want managed enforcement.
Mail Tower is the better fit when a small team wants inexpensive DMARC reporting and already has someone to own classification, DNS, and enforcement decisions. Skysnag fits buyers that need account separation, recurring reports, client handoff, and hosted-record operations. If MSP workflows and alert quality decide the purchase, compare how each product routes alerts and handoff notes against Suped's product as a practical buying criterion.
Mail Tower
Budget SMB monitoring fit
Simple domain grouping
MSP handoff felt custom
Skysnag
Enterprise enforcement fit
MSP plan is stronger
Client reports were cleaner
Mail Tower worked for an SMB-style workflow where one admin reviewed the corporate domain, marketing subdomain, and parked domain in a predictable cadence. Account separation and MSP use existed as a custom path, but recurring client reporting and handoff notes felt like work the operator would build around the product.
Skysnag was a stronger fit for enterprise and MSP teams that need domain grouping, centralized client review, and recurring reporting tied to enforcement status. The tradeoff is that pricing and domain expansion need more confirmation once the buyer moves past the public entry tier.
What each tool feels like after 90 days of real use
Mail Tower
Lean DMARC reporting for teams with internal expertise
Mail Tower felt practical once the three domains were sending reports. The corporate domain was the easiest to review, the marketing subdomain needed more attention because of Mailchimp and SendGrid, and the parked domain made spoof testing easy to isolate.
After 90 days, the limitation was not the raw report data. The limitation was the amount of interpretation we had to provide for the unknown sender, the forwarded SPF failure, and the internal handoff before we could recommend moving policy.
Where it wins
Clear low entry price
Unlimited aggregate reports
Simple domain separation
API available on Large tier
Where it lags
No hosted SPF or MTA-STS
Unknown sender classification stayed manual
No blocklist (blacklist) monitoring
No public free tier
Pricing
From €10 / month
Free tier
No public free tier
Onboarding
Three domains in one session
G2 rating
0.0 / 5
Skysnag
Managed authentication for teams that want enforcement help
Skysnag felt more operational than Mail Tower because hosted records, sender recognition, DNS monitoring, and alerts were part of the same path. That helped when SendGrid, Mailchimp, and the support desk sender all needed different treatment.
After 90 days, Skysnag's strongest moments were the unauthorized spoof sample and the hosted-record decisions. Its weakest point was pricing clarity for larger domain counts, because the public page gave entry prices but left expansion details to confirmation.
Where it wins
Hosted SPF and DMARC
MTA-STS workflow included
Stronger sender recognition
Blocklist (blacklist) monitoring
Where it lags
Pricing expands through quotes
Setup has more decisions
AI copilot not tested
Domain add-on pricing unclear
Pricing
From $39 / month
Free tier
14-day free trial
Onboarding
More guided, more involved
G2 rating
4.6 / 5
Pricing
Mail Tower
Skysnag
Suped
Small
1 domain, up to 1k emails / month.
€10 / month
Small Enterprises covers 5 active domains and unlimited aggregate reports.
$39 / month
Comply starts at this price and covers 2 domains; current email caps are not in the main table.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
From €10 / month
The Small tier covers 2 domains, though employee band can move buyers to €20 / month.
$39 / month
Comply covers 2 domains, with volume assumptions needing confirmation.
Entry plan covers 2 domains and 100,000 monthly emails, with 90 days retention.
Large
10 domains, up to 1 million emails / month.
From €20 / month
Medium Enterprises covers 10 active domains and unlimited aggregate reports.
Not publicly listed as of May 15, 2026
Public tiers list 2 domains; 10-domain pricing needs domain expansion confirmation.
10 domains and 1,000,000 monthly emails, with 365 days retention.
Enterprise
Over 20 domains and 1 million emails / month.
From €50 / month
Large Enterprises covers 25 active domains; MSP or larger needs can move to a custom plan.
Custom
Suite is quote-based for unlimited domains and negotiated volume.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
Mail Tower prices are public list prices in euros. Skysnag Small and Medium use the public Comply entry price, Large is not publicly listed for the stated 10-domain case, and Enterprise is quote-based. Pricing was checked as of May 15, 2026; Skysnag volume notes are estimates from public supporting listings where the current main table does not publish caps.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Guided sender ownership
Mail Tower left the unknown sender and forwarded SPF case as analyst work; Suped's product turns those findings into owner-level fixes and DNS next steps.
Sharper alert routing
Skysnag had broader alerts, but our test still required careful routing for hosted-record changes; Suped's product focuses alerts on issues that change enforcement readiness.
MSP handoff clarity
Mail Tower's MSP path is custom and Skysnag's MSP pricing needs quote confirmation; Suped's product has per-domain MSP pricing and client handoff workflows.
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 Mail Tower or Skysnag?
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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