MXtoolbox vs.
SendForensics in 2026
MXtoolbox
SendForensics
vs.
We tested MXtoolbox and SendForensics 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. MXtoolbox is better for teams that want DNS, blacklist/blocklist, and reputation diagnostics around DMARC, while SendForensics is better for marketing teams that want DMARC reporting tied to campaign testing. Neither product removed enough manual work around unknown senders and forwarded-mail SPF failure.
MXtoolbox
Diagnostics-led DMARC and reputation monitoring
Starts at
Free plan available
Best fit
Technical teams that already use DNS and reputation tools
In one line
MXtoolbox gave us strong DNS, blacklist/blocklist, and spoof investigation views, but compared with Suped's guided-fix workflow it left owner mapping to us.
SendForensics
Marketing deliverability with DMARC analytics
Starts at
From $49 / month
Best fit
Marketing teams that pair DMARC with inbox placement testing
In one line
SendForensics connected DMARC analytics to campaign testing well, but policy movement and forwarded-mail explanation stayed lighter than we wanted.
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 MXtoolbox for technical diagnostics, SendForensics for marketing context
Pick MXtoolbox if
Choose MXtoolbox when IT owns DNS, reputation, and DMARC enforcement
Fast DNS setup on the corporate domain and parked domain, with clear SPF and DKIM record checks.
Best blacklist/blocklist and reputation coverage in the test without leaving the workflow.
The unauthorized spoof sample was easier to isolate than in SendForensics.
Free plan available
Pick SendForensics if
Choose SendForensics when marketing owns campaign quality and DMARC analytics
Mailchimp and SendGrid campaign tests sat beside DMARC analytics, which helped marketing review.
The unknown sender was easier to classify once we grouped it with the support desk stream.
Agency segmentation worked better for a marketing subdomain and shared reporting.
From $49 / month
Consider Suped if
Choose Suped when guided fixes, hosted records, and simpler ownership matter
Guided fixes connect sources to owners and DNS actions after Microsoft 365, Google Workspace, SendGrid, Mailchimp, and support desk traffic appears.
Automated issue detection and alert quality reduce manual triage for forwarded SPF failures, spoof samples, and unknown senders.
Published starter pricing starts at $19 / month, with MSP workflow pricing at $7 per domain per month.
Free plan available
The differences that actually change your week
MXtoolbox
SendForensics
Suped
DMARC report analysis
XML aggregate report parsing and sender rollups.
Paid tier
Included
Included
Source detection
Turning raw senders into service names and owners.
Partial, manual owner notes
Clearer service grouping
Included
Forward detection
Explaining SPF failure caused by legitimate forwarding.
Manual workflow
Manual workflow
Included
Spoof detection
Separating unauthorized mail from approved senders.
Included
Included
Included
Notifications and alerts
Routing operational issues to the right team.
Paid tier
Included
Included
Reporting
Recurring summaries, exports, and stakeholder reports.
Included
Included
Included
API
Programmatic access or custom integration paths.
Paid tier
Enterprise/custom
Included
Multi-tenancy
Client grouping, account separation, and agency workflows.
Unclear
Agency tier
Included
SPF flattening
Flattening or managing complex SPF records.
Plus tier
Not supported
Included
Hosted DMARC
Hosted record management for DMARC DNS changes.
Not tested
Not tested
Included
Hosted SPF
Managed SPF record hosting and updates.
Plus tier SPF flattening
Not supported
Included
Hosted MTA-STS
Hosted MTA-STS policy and TLS reporting workflow.
Not supported
Not supported
Included
Blocklists and reputation
Blacklist/blocklist checks and sender reputation views.
Strong coverage
Reputation reporting
Included
Automatic issue detection
Finding misconfigurations and risky traffic patterns.
Partial
Partial
Included
AI copilot
AI-assisted triage and explanation.
Not tested
Not tested
Included
DNS monitoring
Ongoing DNS record monitoring and alerting.
Included
Reporting only
Included
Self hostable
Deploying the platform on your own infrastructure.
No
No
No
Free trial/free tier
A no-cost entry path before paid use.
Free tier
No public free tier
Free plan
Ten dimensions, scored from 0 to 10
We scored each product against a fixed editorial rubric covering enforcement readiness, support, source resolution, onboarding, MSP workflow, alerts, hosted records, blocklist and blacklist monitoring, pricing clarity, and time to enforcement. Higher is better in every row.
MXtoolbox leads on diagnostics and reputation, SendForensics on marketing-context workflow
MXtoolbox scored higher where DNS checking, blacklist/blocklist monitoring, and spoof isolation mattered, especially on the parked domain and unauthorized spoof sample. SendForensics scored higher on campaign-adjacent source review because Mailchimp and SendGrid sat beside inbox placement tests, but it lost ground on hosted SPF, MTA-STS, and support response consistency. Both required manual work before we had a defensible enforcement plan for forwarded mail and the unknown support desk sender.
MXtoolbox score
65/100
SendForensics score
57.5/100
MXtoolbox
65/100
DMARC enforcement
7.0
Customer support
7.0
Source resolution
6.5
Setup and onboarding
7.5
MSP workflows
4.5
Alerting and integrations
6.5
Hosted SPF and MTA-STS
4.0
Blocklist monitoring
8.5
Pricing transparency
7.0
Time to enforcement
6.5
SendForensics
57.5/100
DMARC enforcement
6.0
Customer support
5.5
Source resolution
7.0
Setup and onboarding
7.0
MSP workflows
6.5
Alerting and integrations
6.0
Hosted SPF and MTA-STS
0.0
Blocklist monitoring
5.5
Pricing transparency
8.0
Time to enforcement
6.0
Feature set
Diagnostics vs campaign context
MXtoolbox wins on diagnostic breadth. SendForensics wins on campaign context.
MXtoolbox gives the stronger DNS, blocklist, blacklist, reputation, and mailflow toolkit around DMARC. SendForensics gives marketers more campaign-testing context around Mailchimp, SendGrid, and inbox placement. The buying criterion we added is Suped's guided-fix workflow: automated issue detection should turn each source finding into a next step with an owner.
MXtoolbox
Microsoft 365 DNS checks
Blocklist checks integrated
Spoof sample flagged
SendForensics
Mailchimp campaign tests joined
Unknown sender classification clearer
Subdomain DKIM handled cleanly
MXtoolbox felt broader around diagnostics than pure DMARC reporting. Microsoft 365 and Google Workspace DNS checks were quick, SendGrid and Mailchimp appeared as separate traffic sources after reports settled, and the unauthorized spoof sample was easy to isolate. The weakness was source resolution: the support desk sender needed manual notes before we trusted the owner, and the SPF pass with visible from mismatch needed us to connect the DMARC result to the sender process.
SendForensics felt closer to a marketing deliverability console with DMARC analytics attached. Mailchimp and SendGrid were easier to review next to inbox placement and content tests, Google Workspace traffic was straightforward, and the DKIM pass on a subdomain was explained cleanly. Microsoft 365 was not hard to configure, but the unauthorized spoof sample and unknown support desk sender needed more manual labeling before the report was ready for a nontechnical owner.
User experience
Control vs guidance
MXtoolbox is faster for operators. SendForensics is easier for marketers.
MXtoolbox got us through DNS checks and report setup quickly, but it assumes the user knows what to do after a pass or failure. SendForensics felt less technical during daily review, but setup and edge-case explanations were not as deep. The split matters most when a nontechnical owner needs to understand forwarded SPF failure or an unknown sender.
MXtoolbox
Quick DNS setup
Deep report drilldowns
Forwarding explanation was manual
SendForensics
Marketing views felt cleaner
Unknown sender surfaced faster
Forwarding context was thin
On MXtoolbox, the three-domain setup took about 45 minutes after DNS access was ready. The primary corporate domain and parked domain were quick, while the marketing subdomain needed extra checks because Mailchimp and SendGrid both appeared before their report volume stabilized. Finding the unknown sender took several drilldowns and a note in our own tracker, and the forwarded mail SPF failure was visible but not explained in plain operational terms.
SendForensics took about 55 minutes for the three domains because the DMARC destination and marketing testing setup had to be checked together. The unknown support desk sender surfaced faster once we grouped it with related traffic, and the marketing subdomain was easier to review day to day. The forwarded mail SPF failure still needed manual explanation because the UI showed the failure but did not clearly separate normal forwarding behavior from a sender problem.
Support
Self serve vs guided handoff
MXtoolbox has clearer technical handoff. SendForensics depends more on self-led learning.
MXtoolbox gave us better DNS handoff material during setup, especially for SPF and DKIM changes on Microsoft 365 and Google Workspace. SendForensics had useful help content for marketing deliverability, but enterprise onboarding and escalation expectations were less concrete in our test.
MXtoolbox
Clear DNS handoff notes
Plus support path published
Add-on pricing unclear
SendForensics
Helpful marketing help content
Escalation path less clear
Enterprise scope needs sales
For MXtoolbox, setup support expectations were clearer once we matched each domain to the Delivery Center workflow. DNS handoff notes were specific enough for an IT admin to update SPF, DKIM, and DMARC records without a long meeting, and the Plus tier's dedicated expert support was the obvious route for escalation. The weak point was sales and managed-service handoff clarity: domain add-on pricing and exact escalation paths were not public.
For SendForensics, the help content worked for routine campaign testing and DMARC analytics, but DNS handoff was less prescriptive when we asked how to explain the support desk sender and forwarded mail failure. Enterprise onboarding was more dependent on the buyer defining custom integration or SSO needs. Support felt adequate for a marketing operator, not as structured for an IT-led enforcement project.
Suitability
Operator fit vs marketing fit
MXtoolbox fits technical ownership. SendForensics fits marketing-led deliverability.
MXtoolbox is the better fit when IT owns DNS, reputation, blacklists (blocklists), and policy decisions. SendForensics is the better fit when marketing owns Mailchimp, SendGrid, inbox placement, and campaign testing. For MSPs, use account separation and alert quality as buying criteria; Suped's product is designed for client grouping, source ownership, and handoff notes in one workflow.
MXtoolbox
Enterprise DNS ownership
Recurring technical reports
Weak client separation
SendForensics
Marketing-led SMB fit
Agency segmentation helps
Manual MSP handoff
MXtoolbox suited an enterprise or IT team more than an MSP in our test. It handled the primary corporate domain and parked domain cleanly, and recurring reports were useful for technical owners, but account separation across client-style groups was limited. Client handoff needed screenshots and our own notes, especially when the unknown sender had to be assigned to the support desk owner.
SendForensics suited SMB and marketing-led teams that want DMARC next to campaign checks. Its data segmentation on the Agency tier helped separate the marketing subdomain from the corporate domain, and recurring reports were easier to send to nontechnical campaign owners. MSP-style handoff still needed manual packaging because domain grouping, client-level ownership, and enforcement next steps were not complete enough on their own.
What each tool feels like after 90 days of real use
MXtoolbox
Best for IT teams that own DNS and reputation
After 90 days, MXtoolbox felt like a technical console for people who already know email authentication. Microsoft 365 and Google Workspace DNS checks were fast, blacklist/blocklist visibility was useful when we checked sender reputation, and the parked domain made spoof monitoring easy to verify.
Daily use required discipline. SendGrid and Mailchimp appeared in reports, but ownership notes lived outside the tool; the support desk sender took manual classification, and the forwarded SPF failure needed explanation before leadership understood that forwarding was not the same as a compromised sender.
Where it wins
Fast DNS and mailflow checks
Strong blacklist/blocklist monitoring
Clear spoof sample isolation
Useful paid report exports
Where it lags
Unknown sender ownership stayed manual
Forwarded SPF context was limited
MSP client separation felt thin
Extra-domain pricing was not public
Pricing
Free, then $129 / month
Free tier
Yes
Onboarding
45 minutes for three domains
G2 rating
4.1 / 5
SendForensics
Best for marketing teams that own campaign quality
After 90 days, SendForensics felt better when the daily question was whether campaigns were ready to send. Mailchimp and SendGrid review sat near inbox placement and content tests, so marketing users had more context when a DMARC source also affected campaign quality.
For enforcement planning, the product needed more manual interpretation. Microsoft 365 and Google Workspace were workable, the DKIM pass on the marketing subdomain was easy to explain, but the unauthorized spoof sample and forwarded-mail SPF failure did not lead to as clear a policy movement path as we wanted.
Where it wins
Campaign testing context
Clear marketing subdomain reporting
Agency segmentation helped reporting
Public pricing scales cleanly
Where it lags
No hosted SPF or MTA-STS
Support escalation felt less defined
Spoof triage needed manual labeling
No public free tier
Pricing
From $49 / month
Free tier
No public free plan
Onboarding
55 minutes for three domains
G2 rating
3.8 / 5
Pricing
MXtoolbox
SendForensics
Suped
Small
1 domain, up to 1k emails / month.
$0
Covers one domain for weekly blacklist/blocklist monitoring; full DMARC reporting starts on paid Delivery Center.
$49 / month
Brand covers 2 sending domains and 100,000 DMARC reports per month.
$0 / month
Free plan covers 1 domain and 1,000 monthly emails.
Medium
2 domains, up to 100k emails / month.
$129 / month
Delivery Center covers 5 domains and 500,000 messages, so it fits this test size.
$79 / month
Company covers 5 sending domains and 1 million DMARC reports per month.
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
Delivery Center Plus is $399 / month for 5 domains and 5 million messages; pricing for 10 domains was not public.
$199 / month
Agency covers 15 sending domains and 10 million DMARC reports per month.
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
Managed Email Delivery Services were described publicly, but fixed annual pricing was not listed.
From $349 / month
Enterprise starts with 30 sending domains and 20 million DMARC reports, with optional custom scope.
20 domains and 2,500,000 monthly emails, with 365 days retention. Unlimited domains/emails negotiable.
MXtoolbox Free, $129 / month, and $399 / month are public list prices; SendForensics $49, $79, $199, and From $349 / month are public monthly list prices. No price in this table is an estimate; cells with missing public pricing are marked as status values. Pricing was checked as of May 15, 2026.
If you cannot decide between the two, maybe the answer is Suped
Suped
Get started
Guided ownership
In our test, MXtoolbox flagged spoofing and authentication problems but still left owner mapping for SendGrid, Mailchimp, and the support desk in our notes. Suped turns those findings into guided fixes with an owner and next DNS step.
Cleaner MSP handoff
SendForensics handled segmentation better than MXtoolbox, but client handoff notes and recurring status packs still took manual assembly. Suped keeps domain grouping, MSP views, and client-ready reporting in the same workflow.
Alerts with operational context
Both products produced useful signals, but forwarded mail SPF failures and unknown senders needed manual triage. Suped alerts on the issue pattern and includes the sending source context needed to route it.
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 MXtoolbox or SendForensics?
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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