Can I Use DMARC If I Have Only Deployed SPF?

A question people asked repeatedly in 2016 was whether or not their organization could deploy DMARC if they only used SPF at present. They knew the recommendation is to use both DKIM and SPF, and were concerned that their organizations couldn’t benefit from DMARC without DKIM. The short answer is that you can use DMARC […]

Updates To Who Is Using DMARC?

On February 25th of this year we published a page listing interesting companies that were using DMARC in some capacity. While not a comprehensive survey, it included well-known companies who had published a DMARC policy in DNS. We recently took a look at that list, and were pleased to see that some updates were in […]

DMARC.org Presenting In Tokyo Nov 28th

DMARC.org Executive Director Steven Jones will be speaking about email authentication at TwoFive, Inc’s Cloud and Messaging Day event in Tokyo on Monday, November 28th. Also appearing will be Heikki Gruner of Cloudmark, and anti-spam campaigner Neil Schwartzman. A panel discussion later in the program will also feature noted email experts Shuji Sakuraba and Ayachika […]

United Kingdom Leading The Way In Email Security

The United Kingdom may have the most forward looking policies and deployment plans of any major government. Last week Chancellor of the Exchequer Philip Hammond announced a £1.9 billion national cyber security strategy that includes a broad series of measures, and will continue a series of improvements in email security that the UK government has […]

Zendesk moves to “p=reject”

Customer service and support platform provider Zendesk has employed DMARC to monitor email activity using their domains for several years. In September, Zendesk switched over 80,000 sub-domains that they use to support their customers to a “p=reject” DMARC policy. This prevents fraudulent email using these sub-domains from reaching consumers, and protects their customers’ and Zendesk’s […]

DMARC Q&A on Litmus Blog

A short time ago Bettina Specht of email marketing and software firm Litmus compiled questions her colleagues and their customers had about DMARC and email authentication. They cover the most common topics and concerns around preventing fraudulent email from affecting your brand and customers. The answers provided by DMARC.org staff have now been compiled into […]

Australian Government Agency Recommends DMARC, DKIM, and SPF

In July the Australian Signals Directorate, part of the Department of Defence, and the Australian Cyber Security Centre issued a report for IT professionals titled, Malicious Email Mitigation Strategies. The report recommends the most effective methods of protecting organizations from email-borne attacks, and includes deploying DKIM, DMARC, and SPF. Furthermore it recommends using DMARC with […]