dmarcian, Inc.

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dmarcian, Inc.

A service for email domain owners - we process DMARC-based feedback to give clear visibility of doma dmarcian helps people deploy DMARC.

Enjoy the benefits of improved security, delivery, and organization-wide visibility with DMARC.

05/01/2026

Wondering if an email source supports DMARC? Our continually updated repository features over 1,300 sources—powered by real-time data from our advanced source classification engine. It’s free, and invaluable at any stage of your journey: dmarc.io

02/23/2026

Did you know? The frequency of key rotation depends on key length. 1024-bit keys should be rotated more often than 2048-bit keys, as they are easier to break. The , Malware, Mobile Anti-Abuse Working Group, (M3AAWG) recommends rotating DKIM keys every six months to maintain security.

Learn more about DKIM key rotation methods and find the best approach for you: https://dmarcian.com/rotate-dkim-key/

02/20/2026

Wondering if an email source supports DMARC? Our continually updated repository features over 1,300 sources—powered by real-time data from our advanced source classification engine. It’s free, open to everyone, and invaluable at any stage of your journey. Explore it here: https://dmarc.io/

02/19/2026

Email has long been recognized as the #1 vector for online attacks, and despite years of progress, business email compromise and attacks continue to grow year after year.

The Traditional Email Security Model still assumes trust until something looks suspicious.

That assumption may just be the problem.

In our latest piece, Tim Draegen, primary author of the DMARC specification and founder of dmarcian, covers how DMARC applies ZeroTrust principles to email, and why the email security model needs to evolve: https://dmarcian.com/dmarc-email-security-model/

02/18/2026

The last time we took a look at DMARC adoption for the top 100 global banks, Google and Yahoo hadn’t yet released their ecosystem-shifting sender requirements.

We revisited our review of the DMARC Adoption status of the World's Top 100 banks. We were happy to see more institutions moving into the quarantine and reject categories!

Take a look at our recent analysis:https://dmarcian.com/top-100-banks-dmarc/

02/17/2026

Have you seen our platform lately? 𝗪𝗲'𝘃𝗲 𝘂𝗽𝗱𝗮𝘁𝗲𝗱 𝗼𝘂𝗿 𝗗𝗼𝗺𝗮𝗶𝗻 𝗢𝘃𝗲𝗿𝘃𝗶𝗲𝘄 𝘁𝗼 𝗺𝗮𝗸𝗲 𝗶𝘁 𝗲𝗮𝘀𝗶𝗲𝗿 𝘁𝗼 𝘂𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱 𝗮𝗻𝗱 𝗮𝗻𝗮𝗹𝘆𝘇𝗲 𝗱𝗼𝗺𝗮𝗶𝗻 𝗮𝗰𝘁𝗶𝘃𝗶𝘁𝘆. With improved tools and expanded data, you can uncover insights and take action more efficiently than ever.

𝘏𝘦𝘳𝘦'𝘴 𝘸𝘩𝘢𝘵'𝘴 𝘯𝘦𝘸:

• 𝗦𝗺𝗮𝗿𝘁𝗦𝗼𝗿𝘁 𝗮𝗻𝗱 𝗦𝗺𝗮𝗿𝘁𝘀𝗲𝗮𝗿𝗰𝗵: 𝘈𝘭𝘭𝘰𝘸𝘴 𝘶𝘴𝘦𝘳𝘴 𝘵𝘰 𝘴𝘰𝘳𝘵 𝘢𝘯𝘥 𝘴𝘦𝘢𝘳𝘤𝘩 𝘵𝘩𝘦𝘪𝘳 𝘥𝘰𝘮𝘢𝘪𝘯 𝘨𝘳𝘰𝘶𝘱𝘴 𝘣𝘺 𝘷𝘢𝘳𝘪𝘰𝘶𝘴 𝘤𝘳𝘪𝘵𝘦𝘳𝘪𝘢 𝘴𝘦𝘢𝘳𝘤𝘩𝘪𝘯𝘨 𝘢𝘤𝘳𝘰𝘴𝘴 𝘥𝘰𝘮𝘢𝘪𝘯𝘴, 𝘴𝘶𝘣𝘥𝘰𝘮𝘢𝘪𝘯𝘴, 𝘢𝘯𝘥 𝘨𝘳𝘰𝘶𝘱𝘴 𝘧𝘰𝘳 𝘧𝘢𝘴𝘵𝘦𝘳, 𝘮𝘰𝘳𝘦 𝘤𝘰𝘮𝘱𝘳𝘦𝘩𝘦𝘯𝘴𝘪𝘷𝘦 𝘳𝘦𝘴𝘶𝘭𝘵𝘴.

• 𝗘𝗻𝗵𝗮𝗻𝗰𝗲𝗱 𝗧𝗼𝗼𝗹𝗯𝗮𝗿: 𝘈 𝘴𝘵𝘳𝘦𝘢𝘮𝘭𝘪𝘯𝘦𝘥, 𝘮𝘰𝘳𝘦 𝘪𝘯𝘵𝘶𝘪𝘵𝘪𝘷𝘦 𝘵𝘰𝘰𝘭𝘣𝘢𝘳 𝘧𝘰𝘳 𝘦𝘢𝘴𝘪𝘦𝘳 𝘯𝘢𝘷𝘪𝘨𝘢𝘵𝘪𝘰𝘯 𝘢𝘯𝘥 𝘲𝘶𝘪𝘤𝘬𝘦𝘳 𝘢𝘤𝘤𝘦𝘴𝘴 𝘵𝘰 𝘬𝘦𝘺 𝘢𝘤𝘵𝘪𝘰𝘯𝘴.

• 𝗗𝗼𝗺𝗮𝗶𝗻 𝗚𝗿𝗼𝘂𝗽𝘀 𝗘𝘅𝗽𝗮𝗻𝗱/𝗖𝗼𝗹𝗹𝗮𝗽𝘀𝗲/𝗮𝗻𝗱 𝗥𝗲-𝗢𝗿𝗱𝗲𝗿 𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝗮𝗹𝗶𝘁𝘆: 𝘎𝘪𝘷𝘦𝘴 𝘶𝘴𝘦𝘳𝘴 𝘵𝘩𝘦 𝘢𝘣𝘪𝘭𝘪𝘵𝘺 𝘵𝘰 𝘷𝘪𝘦𝘸 𝘢𝘭𝘭 𝘋𝘔𝘈𝘙𝘊 𝘪𝘯𝘧𝘰𝘳𝘮𝘢𝘵𝘪𝘰𝘯 𝘧𝘰𝘳 𝘢 𝘴𝘱𝘦𝘤𝘪𝘧𝘪𝘤 𝘥𝘰𝘮𝘢𝘪𝘯 𝘪𝘯 𝘰𝘯𝘦 𝘱𝘭𝘢𝘤𝘦, 𝘢𝘯𝘥 𝘳𝘦-𝘰𝘳𝘨𝘢𝘯𝘪𝘻𝘦 𝘥𝘰𝘮𝘢𝘪𝘯 𝘨𝘳𝘰𝘶𝘱𝘴 𝘳𝘦𝘥𝘶𝘤𝘪𝘯𝘨 𝘤𝘭𝘪𝘤𝘬𝘴 𝘢𝘯𝘥 𝘪𝘮𝘱𝘳𝘰𝘷𝘪𝘯𝘨 𝘤𝘭𝘢𝘳𝘪𝘵𝘺.

We're always working to improve your experience and make DMARC accessible for all.

Log in to your dmarcian account to explore the latest features, or start a 30-day free trial: https://dmarcian.com/register/

02/16/2026

Next month, on Marcch 31,2026, the NCSC UK will permanently discontinue it's Mail Check, and Web Check services.

For organisations relying on these services, the National Cyber Security Centre UK recommends transitioning to an alternative provider.

For those still working on making the change, we've compiled what you need to know to transition seamlessly: https://dmarcian.com/ncsc-dmarc-changes-mail-check-alternatives/

02/13/2026

Beyond protecting your clients from phishing with DMARC, MSPs gain full visibility to deploy email tech faster and more accurately, streamling operations and making your service indispensable.

Accessible from our platform, the dmarcian MSP Portal is a dedicated resource center designed with MSPs in mind. It offers quick access to the tools, educational materials, customer-facing presentations, and sales enablement assets you need to more effectively manage and serve your DMARC clients.

Join a collaborative partnership that helps you reduce noise, speed up enforcement, and prove value to your customers.

Get access to the MSP Portal https://dmarcian.com/managed-service-provider-dmarc/ or start a 30-day free trial today.

02/12/2026

Recognizing the need for stronger email and domain protection, Germany’s Federal Office for Information Security (BSI) has declared 2025 the Year of Email Security.

In light of this initiative, we’ve highlighted the BSI’s latest guidance and DMARC troubleshooting recommendations. But that’s not all—our analysis also looks at how Germany’s leading businesses, banks, and breweries measure up in DMARC adoption: https://dmarcian.com/germany-recommends-dmarc/

02/11/2026

The last time we took a look at DMARC adoption for the Fortune 100 Companies, Google and Yahoo hadn’t yet released their ecosystem-shifting sender requirements. We thought we’d check in on the Fortune 100 companies in 2026 to see how they have progressed since , and ’s mandates: https://dmarcian.com/fortune-100-dmarc-policies/

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