How Many From: Addresses Are There?

When first exploring email authentication, even people with a technical background find that there’s a lot of niche terminology that has to be picked up. This post will try to explain the different terms used for addresses that are associated with email messages. How Is An Email Message Like A Postal Letter? When your postman […]

DMARC Required For UK Government Services By October 1st

Government Digital Service (GDS), part of the United Kingdom’s Cabinet Office, is requiring that other government departments adopt DMARC and HTTPS/HSTS to protect their online services by October 1st, 2016. This includes making the strongest DMARC policy (“p=reject”) the default for email services at that time. This will apply to all services operating under the service.gov.uk […]

New Presentation Describing ARC Protocol Available

The Authenticated Received Chain, or ARC, protocol allows authentication results to be conveyed across indirect mailflows. This is intended to allow traditional services like mailing lists, content scanning, and alumni accounts that forward and/or alter messages to continue to operate in an environment where email authentication is increasingly required for timely delivery of messages, but […]

Eleven Commercial Email Gateways Support DMARC

Businesses and other organizations can protect themselves from certain classes of phishing attacks on their employees by using DMARC to filter incoming email messages. But whether the company is large or small, they usually don’t have the expertise or resources to build their own filtering solution. That’s why commercial email gateways that support DMARC are […]

25 Leading Companies That Began Using DMARC in 2015

Each year since the DMARC protocol was first announced, more and more companies have found that it can help them monitor and protect email using their domains. Here are some notable companies or brands that began doing so in 2015, according to data provided by DMARC.org sponsor Farsight Security. Aflac (insurance) American Express (finance) † […]

Best Authentication Practices for Email Senders

Product managers and engineers from some of the world’s largest mailbox providers recently got together to explain coming changes in email authentication at an industry conference. While we can’t share all that was said, we did get permission to share their combined best practice recommendations, which will work as well for a small business as […]

Two ARC Implementations Tested At Interoperability Event

From arc-spec.org: On February 19th representatives from AOL (NYSE:VZ) and Google (NASDAQ:GOOG) successfully tested the first two implementations of the ARC protocol at an interoperability event. LinkedIn (NYSE:LNKD) hosted the in-person, all-day event at their San Francisco offices and facilitated the testing. Also participating were representatives from Cloudmark, Comcast (NASDAQ:CMCSA), DMARC.org, the Trusted Domain Project, […]