Features

Outbound Security

DMARC

Active Visibility

Hosted SPF

Flattening & lookups

Hosted DKIM

Selector delegation

BIMI Suite

Brand Verification

Inbound Security

MTA-STS

Enforced Encryption

TLS-RPT

Delivery Reporting

Utilities

Domain Audit

FREE

Full Security

SVG Converter

FREE

BIMI Automation

PricingContact
SentraDMARC

Six protocols, two free tools

The six records that decide whether your mail is trusted, each hosted and kept current. Two of the tools need no account at all.

The six protocols

DMARC

Gain full visibility into who is sending email on your behalf. Stop phishing attacks and improve deliverability.

Open

Hosted SPF

Visualize and validate your Sender Policy Framework records to ensure authorized senders are properly authenticated.

Open

Hosted DKIM

Find the selectors published on your domain, grade the key strength, and catch the testing flag that makes a signature decorative.

Open

BIMI Suite

The one protocol your customers can actually see. Your verified mark sits in the inbox row before the message is opened.

Open

MTA-STS

Enforce encryption for inbound emails. Protect your organization from man-in-the-middle attacks.

Open

TLS-RPT

Monitor email delivery encryption issues. Get reports on TLS connection failures.

Open

Free, no account

Domain Audit

Perform a comprehensive security check of your domain. Identify vulnerabilities and get actionable recommendations instantly.

Open

SVG Converter

Convert your logo into the strict SVG Tiny PS format required for BIMI. Includes automated cleanup and validation.

Open
SentraDMARC

We get your domain ready for DMARC enforcement, so receiving servers reject mail that forges it.

Hosted DMARC, SPF, DKIM, BIMI, MTA-STS and TLS-RPT. You approve each policy step; hosted SPF re-resolves your includes hourly, and the rest we publish and hold so you never edit DNS again.

Solutions & Tools

  • DMARC Analyzer
  • SPF Inspector
  • BIMI Manager
  • SVG Converter
  • MTA-STS Policy

Resources

  • Documentation
  • Engineering Blog
  • About Us
  • Support Center

Legal & Trust

  • Privacy Policy
  • Terms of Service
  • DPA
  • Security
  • security.txt

© 2026 SentraDMARC. All rights reserved.