Desktop DMARC Analysis

Drag in your DMARC reports.
Get answers.

Drop in your report files — zip, gz, or xml — and get a single interactive dashboard. Senders identified, spoofing flagged, fixes recommended. No subscription, no third-party servers, no configuration.

trustedmarc.co.uk — Mail Auth Dashboard
Total Messages
124,847
DMARC Pass
121,203
DMARC Fail
3,644
Senders ID'd
8
IP / Sender Messages DMARC SPF DKIM
209.85.220.41
🔵 Google Workspace
87,442
Pass
Aligned
Aligned
149.72.100.5
🟢 SendGrid
24,108
Pass
Aligned
Aligned
198.51.100.42
❓ Unknown
3,644
Fail
Fail
Fail
54.240.27.22
🟠 Amazon SES
9,653
Partial
Aligned
None
87%
of domains have no DMARC protection
$2.7bn
lost to email fraud in 2022 (FBI)
30+
sending services identified automatically
100%
local processing — your data stays yours
Everything you need to
understand your email security

Drop in your report files. Get one dashboard. No configuration, no ongoing subscription to a third-party service.

Sender identification

Automatically identifies Google Workspace, Microsoft 365, SendGrid, Amazon SES, Mailchimp, and 30+ others by name — not just IP address.

Spoofing detection

Flags suspicious IPs with high failure rates, single-day spikes, and total DMARC failure — so you can see who's trying to send as your domain.

Timeline analysis

See pass and fail volumes day by day. Spot the moment something changed — a new sender, a config error, or an attack beginning.

Actionable recommendations

Prioritised, specific guidance — not generic advice. Tells you exactly which records to fix, which senders to configure, and what to do next.

Geolocation and reverse DNS

Every IP is mapped to a country, city, and ISP. Hostnames resolved automatically so you know exactly where traffic originates.

Live DNS record check

Fetches your actual SPF and DMARC records at report time. Immediately see if your DNS configuration matches what your traffic data shows.

From inbox to insight
in minutes

No configuration required. No forwarding your reports to a third party. Just point it at your files.

01

Save your report files

Save the DMARC report attachments from your inbox into a folder. Mix of .zip, .gz and .xml all fine.

02

Select and run

Open the desktop app, select your folder, and click Generate Report. Progress shown in real time.

03

Review your dashboard

A full interactive HTML report opens in your browser — senders, charts, flags, recommendations, and DNS records.

04

Act on the findings

Follow the prioritised recommendations to fix authentication gaps and move towards a p=reject policy.

Built for anyone responsible
for email security
SMBs

Small and medium businesses

You get DMARC reports every day and they sit unread in your inbox. TrustedMARC makes them understandable and actionable without needing to be an email security expert.

IT

IT managers and sysadmins

See exactly which services are sending as your domain, which are failing, and what needs fixing. Export to CSV for your records or share the HTML report with stakeholders.

MSPs

Managed service providers

Run DMARC analysis for all your clients from a single tool. Generate per-domain reports in seconds. No per-client seat fees, no uploading client data to external platforms.

Your data never leaves your machine

Most DMARC tools require you to redirect your reports to their servers permanently. TrustedMARC processes everything locally. The only external calls are optional IP geolocation lookups and DNS queries — nothing proprietary is transmitted. This matters for regulated industries, legal practices, financial services, and anyone handling sensitive communications.

Ready to understand
your email security?

TrustedMARC is currently available as a desktop application for macOS and Windows.