Email Security and Authentication

Validity Blog



May 9, 2025

Keeping the Inbox Safe: Microsoft’s New Bulk Email Rules Explained

Microsoft has finally joined the bulk sender requirement club! After the announcement and implementation of Gmail and Yahoo’s bulk sender requirements, email experts...

By Julie Stuck (Senior Email Strategist)

April 29, 2025

The BIMI Battle: An Analysis of BIMI Adoption and Implementation

Brand Indicators for Message Identification (BIMI) sounds great, right? Your logo, right there in the inbox, helping you...

By Rafael Viana (Sr. Email Strategist)

January 29, 2025

DMARC Adoption: A Deep Dive into the Current State of Email Authentication

Last year, Gmail and Yahoo raised the bar for email authentication by requiring sending domains to have a valid DMARC record

By Rafael Viana (Sr. Email Strategist)

November 25, 2024

The Alphabet Soup of BIMI Requirements: A Guide to VMC, CMC, and Apple Business Connect

Get your soup bowls out! We’re going to stir up the alphabet and get to the bottom of the latest BIMI requirements.   

By Julie Stuck (Email Strategist)

August 28, 2024

Today’s Top Email Security Threats—And How to Fight Back

In today's digital world, email marketing stands out as a powerful and cost-effective channel. It helps businesses foster customer relationships, deliver...

By Rafael Viana (Sr. Email Strategist)

August 1, 2024

How to Set Up an SPF Record in 5 Simple Steps

It might shock you to learn that 80 to 95 percent of all cyberattacks begin with a phishing email. With artificial intelligence...

By Danielle Gallant and Aaron Oppliger

April 29, 2024

What’s New with Google Postmaster Tools?

It’s been an exciting year for email marketing, with Gmail and Yahoo making new changes to help curb spam and enhance...

By Megan Farquharson

November 29, 2023

New Sender Requirements from Gmail and Yahoo: Ready or Not, Here They Come!

The November edition of our monthly State of Email webinar series focused on the new...

By Guy Hanson (Vice President, Partners)

October 26, 2023

Gmail, Yahoo Users Will Be Able to Stop Spam Emails with Just One Click

In a win for the movement against spam-filled inboxes everywhere, major mailbox providers (MPBs) are cracking down. To help recipients...

By Laura Christensen (Sr. Director of Professional Services)