Switching IT providers? Get $1,000 toward your contract buyout. See how →
Managed Services · DMARC and SPF/DKIM

DMARC Setup That Stops Domain Spoofing

Attackers send phishing that looks like it came from you. SPF, DKIM and DMARC prove which email is really yours and block the fakes. We set it up and take it all the way to enforcement.

  • SPF records set right
  • DKIM signing
  • Phased DMARC enforcement
  • Monthly reports
  • Serving the DMV Since 2012
  • Clutch Excellent ★ 5.0
  • Every Domain You Own

Your domainProtected by SADOS

  • SPFOnly approved senders allowed
  • DKIMEvery message signed
  • DMARC policyMonitor, quarantine, then reject
  • Sender reportsEvery service using your domain
  • Ongoing updatesRecords kept current as vendors change

Many domains have no DMARC policy at all. See the fix

Who is sending email as you?

Without DMARC, anyone can put your domain in the From line. Switch views to see what changes.

Young woman working on a laptop in a modern office.

6 gaps, spoofable0 gaps, enforced

SpoofingAttackers send mail as your domain.Fake mail rejected at the receiving server.
OpenRejected
SPFMissing or full of old senders.Only approved senders listed.
MessyClean
DKIMMessages go out unsigned.Every message signed and checked.
UnsignedSigned
VisibilityNo idea who sends as you.Reports show every sender, approved or not.
NoneFull
DeliverabilityReal mail lands in spam.Authenticated mail earns trust.
Hit or missTrusted
New vendorsRecords break when tools change.Records updated as you add services.
BreaksMaintained

Illustration of common email authentication gaps, not a customer report.Book a free assessment

What DMARC setup includes

SPF, DKIM and DMARC set up, enforced and kept current by our team.

Want inbound protection too?Email security filters phishing headed to your inbox. DMARC protects your domain going out.

Domain audit

  • Every service sending as you
  • Marketing and CRM platforms
  • Payroll and billing senders
  • Current SPF, DKIM and DMARC

Authentication

  • SPF limited to approved senders
  • DKIM signing on your mail platform
  • DMARC policy published
  • Records for every domain you own

Enforcement

  • Start in monitoring mode
  • Move to quarantine
  • Finish at full reject
  • No legit mail blocked on the way

Reporting

  • Aggregate and forensic reports
  • Monthly health summary
  • New senders flagged
  • BIMI once you reach reject

Setup, enforcement and upkeep in one

Publishing a DNS record is the easy part. Getting to full reject without blocking real mail is the job we take on.

What gets done
Do it yourselfDNS records by hand
Reporting toolShows the data
SADOSSetup through enforcement
Find every sending service
On your own
Yes
Yes
SPF and DKIM set right
If you know how
No
Yes
Phased move to reject
Risky
No
Yes
Reports read for you
No
Dashboards only
Monthly
Records updated for new vendors
On your own
No
Yes
Every domain you own
On your own
Per domain
Yes

Four steps to full enforcement

We tighten the policy step by step, so legit email keeps flowing.

  1. 1

    Domain audit

    We find every service that sends email as your domain.

  2. 2

    Monitor

    DMARC starts in monitoring mode to gather real data.

  3. 3

    Fix and tighten

    SPF and DKIM fixed, then the policy moves to quarantine.

  4. 4

    Enforce

    Full reject once every legit sender passes.

Protection for every domain

Pricing is based on how many domains and sending services you have. Every plan ends at full enforcement.

DMARC Management

Per domain

SPF, DKIM and DMARC set up, enforced and maintained.

Quoteper domain, per month
  • Domain sender audit
  • SPF record cleanup
  • DKIM signing
  • Phased DMARC enforcement
  • Aggregate and forensic reports
  • Monthly health summary
  • Updates for new vendors
  • BIMI when you are ready

DMARC starts with a free domain assessment.

Managed IT for Employees

Risk-Free Trial

Endpoint protection, monitoring and support for every device.

$35per device, per month
  • Sentinel EDR
  • Ransomware protection
  • OS patching and updates
  • 24/7 help desk, Mac and PC
  • 4-hour SLA
See Plans & Pricing

Min. 5 devices. No commitment required.

Try us for 60 days, risk-free

Every managed plan starts with a 60-day risk-free trial. Switching providers? We’ll put up to $1,000 toward buying out your old contract.

It felt like a real partnership from the very start.
SADOS managed customer

5.0 out of 5

Rated on Google and Clutch.

Read Our Reviews

DMARC and SPF/DKIM questions

Common questions about DMARC and SPF/DKIM.

Still unsure? Talk to an engineer

Will DMARC break our email?

No. We start in monitoring mode and find every legit sender before tightening the policy. Enforcement only turns on after every approved service passes, so real mail keeps flowing.

How long does it take to reach full enforcement?

It depends on how many services send email as your domain. A simple setup moves fast. Domains with many marketing, CRM and billing senders take longer, because each one has to pass before we tighten the policy.

Do we need DMARC if we have SPF?

Yes. SPF alone does not tell receiving servers what to do when a check fails, and attackers can still fake the visible From address. DMARC adds the policy and the reports.

What is BIMI?

BIMI shows your logo next to your email in supported inboxes. It needs DMARC at full enforcement first. Once you reach reject with clean results, we can set it up.

Can DMARC stop all phishing?

No. DMARC stops spoofing of your own domain. Look-alike domains need other layers, so we pair DMARC with DNS filtering and email security.

How many domains can you manage?

There is no limit. We set up and watch SPF, DKIM and DMARC on every domain you use, including marketing domains and brands, each tuned to its own senders.

Find out who is spoofing your domain

Book a free DMARC assessment. We audit your domain and plan the path to enforcement.

0