Protect against phishing and BEC attacks with Red Sift OnDMARC

Award-winning, cloud-based DMARC, DKIM and SPF configuration and management.

4.9 star rating

69 reviews

Get started for free Check your email setup now

Protect against phishing and BEC attacks with Red Sift OnDMARC

Award-winning, cloud-based DMARC, DKIM and SPF configuration and management.

4.9 star rating

69 reviews

Get started for free Check your email setup now

Take back control of your email reputation

Get to DMARC enforcement safely and efficiently to stop unauthorized use of your email sending domains.

Protect your reputation

Authenticate legitimate sending services and block unauthorized mail from bad actors impersonating your organization.

Get complete visibility

See all outbound mail sent from your organization, including third-party providers.

Improve deliverability

Boost your email deliverability rates by letting receivers know your emails are authenticated.

Stay compliant

Comply with email security recommendations made by global government bodies such as NIST, NCSC, and the European Commission.

Why 1,000+ organizations choose Red Sift OnDMARC

The fastest path to enforcement

Our customers see a 6-8 week average time to full DMARC enforcement (p=reject or p=quarantine). Our award-winning application helps organizations of all sizes reduce email security risk as efficiently and effectively as possible.

Simplify management of SPF, DKIM, DMARC, and MTA-STS records

Make a one-time DNS change and manage all of your email authentication from OnDMARC’s UI. Save time, avoid manual configuration errors and quickly add, authenticate or remove services.

Overcome the 10 SPF lookup limit

Streamline SPF management and avoid manual DNS changes. No macros means that all legacy email structures, gateways, and receivers will deliver your emails.

Stand out in the inbox with BIMI

Red Sift OnDMARC is the only BIMI solution on the market with integrated VMC provisioning. Improve open rates by 39% and increase brand recall by 44%.

Learn more about BIMI

Identify sources failing authentication with detailed forensic reporting

Forensic reporting meets machine learning to deliver granular information about emails that failed DMARC authentication on the receiver side while protecting user privacy.

Block man-in-the-middle attacks with hosted MTA-STS

Red Sift OnDMARC makes the deployment of the MTA-STS protocol fast and simple so you can secure your inbound email and prevent intercepted messages.

Protect against spam from domain takeovers

Red Sift OnDMARC is the only DMARC application on the market that can identify and stop malicious mail that bypasses DMARC, including spam from domain takeovers and SubdoMailing.

Learn more about DNS Guardian

Gareth Packham

Director of Information Security & Data Protection

“Compared to other vendors, Red Sift demonstrated a genuine desire to help us complete our work and push us over the line. Their pricing was incredibly competitive, and they offered exceptional support throughout the process."

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Youssef Oujdi

Chief Security Officer

“Red Sift’s managed SPF solution doesn’t require the use of macros making it fully compatible with global email systems, whilst removing the known SPF entry restrictions.”

Grant Currie

Business Analyst

"The diligence and support of the whole OnDMARC team has been second to none. Not only have they got back to us really quickly, they’ve usually seen it before and have an answer. I’ve never felt like I had to do this on my own."

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Shan Lee

Information Security Officer

"A big brand should be ensuring email security and deliverability, and I’d certainly recommend OnDMARC as an effective partner."

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Alex Einbinder

Senior Operations of IT

"Red Sift is a leader in email security. It was a requirement for us to work with a service provider that had a proven track record of effectively protecting major organizations from unauthorized parties attempting to use their domain for spoofing."

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Meet Radar, the skilled up LLM integrated with OnDMARC

Find and fix email misconfigurations 10x faster with Radar

Red Sift Radar is the first LLM directly integrated with Red Sift OnDMARC, providing instant, AI-powered diagnoses of email security issues. It identifies misconfigurations in SPF and DMARC records, uncovers unknown senders, and enhances your understanding of DMARC reports.

Learn more about Radar

Red Sift OnDMARC features

Dynamic Services

Manage SPF, DKIM, DMARC, and MTA-STS records from inside the OnDMARC interface without needing to access your DNS.

Dynamic SPF

Easily authenticate SPF across all approved sending services and ensure your organization’s email deliverability is never interrupted.

Integrated BIMI

Streamline and automate the VMC provisioning process to make the journey to BIMI as smooth as possible.

Sender Intelligence

Turn complex forensic DMARC reports into clear, actionable information about your sending sources in order to pinpoint and solve issues within your organization quickly.

Investigate

Verify if your approved sending services are set up correctly and check them against compliance profiles, including Google & Yahoo bulk sending requirements.

Hosted MTA-STS

Host the MTA-STS policy file, maintain the SSL certificate, and flag any policy violations through the TLS report to block emails from being intercepted by cybercriminals.

Latest G2 reviews

Emeric K, Cybersecurity Engineer

Apr 14, 2025

"Red Sift OnDMARC: A Must-Have Solution for Email Domain Security"

Red Sift OnDMARC stands out for its ease of deployment and user-friendly interface, making DMARC policy management accessible even to non-experts. The built-in tools, provide deep visibility into email authentication flows and configuration issues. The customer support is also excellent — responsive and knowledgeable, guiding users effectively throughout the process.

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Jon S, Head of Infrastructure

Apr 9, 2025

"Makes getting to p=reject a breeze."

Red Sift OnDMARC is a simple, easy-to-use platform backed by great technical support. The Investigate function is particularly useful during setup or when adding new services.

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Steven J.

Nov 27, 2024

"A truly excellent product with even more excellent people behind it."

Whether you are a seasoned IT Professional or Newbie, the product is simple and intuitive to use and understand the results and metrics, that their platform gives back. For anything that you don't understand, their support staff will assist and guide you through what's good, what's bad and what to look out for and what not to worry about. They truly are leaders in their space.

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Chris M.

Nov 7, 2024

"Simple way of becoming DMARC Compliant"

Easy to understand console, helpful account manager and technical team, simplifies email security, pretty much set it and forget it.

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Luis C.

Oct 10, 2024

"Red Sift OnDMARC - Great company, with outstanding customer service"

Red Sift OnDMARC is an incredibly effective tool that simply works. It offers a user-friendly interface and provides all the necessary resources to monitor your DMARC environment. As an IT professional navigating a fast-paced world, I find that Red Sift OnDMARC significantly simplifies my life by efficiently managing DMARC for me.

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