Technical Guidance

The Importance of Sources in DMARC

A “source” is what we call any company that offers its clients the ability to send emails with their own domain. This translates to any infrastructure that’s capable of “sending emails on behalf of others.” Bearing this explanation in mind, we can identify several types of sources, the most notable are: ESPs - offer their…
Vaughn Talbert
23 May 2019
Technical Guidance

Understanding Shadow IT

For those who’ve been doing IT long enough to remember using a green display monitor also remember a time when everything was locked down and centralized. During the early 1980s, Local Area Networks became more popular and with them came decentralization, allowing other internal departments within an organization to take control of their IT requirements…
Vaughn Talbert
23 May 2019
Ecosystem NewsInside dmarcianPress Release

dmarcian Named to Internet Society’s Online Trust Alliance Honor Roll

dmarcian has been named to the Internet Society’s latest Online Trust Alliance (OTA) Audit and Honor Roll. The Audit and Honor Roll is the de facto standard for recognizing website excellence in consumer protection, security, and responsible privacy practices for the world’s top companies. “dmarcian and the Online Trust Alliance share a vision for a safer…
Vaughn Talbert
30 April 2019
Technical Guidance

Adding DMARC to Office 365

Microsoft's Office 365 platform supports DMARC (Domain-based Message Authentication, Reporting, and Conformance).  The complete Microsoft guide is listed here.The starting point is to review the SPF and DKIM settings. We would also recommend Microsoft's guide - Set up SPF in Office 365 to help prevent spoofing. How your SPF record is formatted depends on if whether…
Vaughn Talbert
21 March 2019

The History of SPF

Dec 14, 1997 Jim Miller sends Paul Vixie an email with his idea on verifying SMTP MAIL FROM address from means of outbound-smtp MX dns records. Note: This event and the date are not confirmed by public records and are based solely on information provided by Paul Vixie. Mar 27, 2000 – Public mention of the idea to create 'MS'…
Vaughn Talbert
18 March 2019
dmarcian Platform

dmarcian’s Timeline Feature

dmarcian’s platform gathers all of the disparate pieces of information about how your domain is utilized across the Internet (sources sending on your behalf, authorized or not, DNS records across vendors, etc.) and helps you make sense of it all. The Timeline provides a visual representation of your domain's DNS history which makes issues easy…
Vaughn Talbert
18 December 2018
Ecosystem News

DK Hostmaster Workshop & Identifier Alignment

At a recent DK Hostmaster workshop, guest instructor Tim Draegen, founder of dmarcian and one of the primary authors of DMARC, helped attendees better understand how DMARC makes use of authentication to improve email security using the well-known SPF and DKIM mechanisms, how DMARC’s reporting protocols help protect your email domains quickly and precisely, and…
Vaughn Talbert
5 December 2018