Free DMARC Monitoring
Monitor your domain's email authentication for free. Get a full dashboard, automatic DMARC report processing, security scoring, and alerts across all eight email security protocols. No credit card required.
What You Get for Free
Our free tier is not a time-limited trial. It covers 1 domain with all 8 protocol checks, email alerts, and analysis of up to 250 DMARC-reported emails per month.
1 Domain
Monitor your most important domain at no cost, with no time limit.
All 8 Protocol Checks
SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, DNSSEC, and DANE. The same checks paid plans get.
Security Score & Grade
A single score that tells you where you stand. Track improvements over time.
DMARC Report Processing
We receive and parse your DMARC aggregate reports automatically, up to 250 reported emails per month. See who sends email as your domain.
TLS-RPT Report Processing
Know when sending servers fail to establish encrypted connections to your mail servers.
Email Alerts
Get notified when your security score drops or a DNS change breaks your authentication.
Free DMARC Tools Compared
Several tools offer free DMARC features, but the scope varies widely. Here is how MailShield's free tier stacks up.
| Feature | MailShield Free | Postmark | Cloudflare | dmarcian |
|---|---|---|---|---|
| Dashboard | ||||
| Multi-protocol | ||||
| Report processing | ||||
| Alerts | ||||
| Business use | ||||
| Domains | 1 | 1 | Unlimited* | 1 |
Postmark DMARC: Free weekly email digests, but no dashboard or multi-protocol monitoring.
Cloudflare DMARC: Free for Cloudflare DNS customers only. DMARC-only, no other protocol checks.
dmarcian: Personal/non-commercial tier only. Business use requires a paid plan.
Other tools: Some competitors, such as PowerDMARC, offer a time-limited trial rather than a permanent free tier.
Why Free Matters for Small Business
Small businesses are the most targeted by email spoofing and phishing attacks, yet they are the least likely to have DMARC configured. The reason is simple: most DMARC tools are built for enterprises with enterprise pricing to match.
Without DMARC monitoring, a small business has no way to know if someone is sending email pretending to be their domain. Their legitimate emails may land in spam, and they will never find out why. A single DNS misconfiguration can silently break delivery for weeks.
MailShield's free tier is designed to change that. It is not a stripped-down demo or a 14-day trial. It covers 1 domain with all 8 protocol checks, security scoring, email alerts, and automatic report processing for up to 250 DMARC-reported emails per calendar month. Above that, the dashboard locks until the 1st of the next month (reports are still collected) or until you upgrade. For a small business sending modest volumes, that is often enough, and it never expires.
What Happens When You Outgrow Free
If you manage more than one domain, or your DMARC reports cover more than 250 emails a month, Pro bills every monitored domain from €4/domain/month (annual). Pro also unlocks hosted MTA-STS, hosted BIMI, grouping by customer, role-based access, API, advanced reports, and notification channels.
There is no pressure to upgrade. The free tier does not expire, and we will never remove features from it to push you toward a paid plan.
Start monitoring your domain for free
Add your domain and get a full security assessment in under a minute. No credit card, no trial period, no strings attached.