DNS

4 free tools for quick email security testing

Dec 1, 20254 min readJack Lilley

Four free tools from Red Sift to audit your email authentication in minutes: Investigate for DMARC, SPF Checker, BIMI Checker, and Blacklist Checker.

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Email Security

DMARC, DKIM, SPF & BIMI: 5-minute playbook for Security and Marketing

Dec 1, 20253 min read

A quick-reference playbook for security and marketing teams covering SPF, DKIM, DMARC, and BIMI — what each does, why all four matter, and how to implement them.

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BIMI

VMC vs CMC: What Are the New BIMI Certificate Requirements?

Jun 17, 20255 min readJack Lilley

BIMI now supports both VMC and CMC certificates. Here's what each requires, how they differ, and which one is right for your organisation.

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BIMI

Gmail Announces CMC Support to Boost BIMI Adoption

Oct 16, 20243 min readJack Lilley

Gmail's addition of CMC certificate support removes a key barrier to BIMI adoption. Here's what it means for senders and how to get set up.

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BIMI

Gmail Expands BIMI with a New Verified Checkmark Icon

May 3, 20232 min readFaisal Misle

Gmail's BIMI support now includes a verified blue checkmark for authenticated senders. Here's what it looks like and how to qualify for it.

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BIMI

Apple Extends BIMI Support to 90% of Consumer Inboxes

Sep 16, 20224 min readFaisal Misle

Apple's expanded BIMI and VMC support means your logo can appear in nearly every major inbox. Here's what changed and how to take advantage.

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BIMI

8 Things to Know About Apple's BIMI Support

Sep 12, 20226 min readChuck Swenberg

Apple's Mail app now supports BIMI, extending logo display to hundreds of millions of inboxes. Here's what it means and what you need to do.

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BIMI

Why Apple's BIMI Support Is a Turning Point for Email Trust

Jun 21, 20223 min readChuck Swenberg

Apple's decision to support BIMI signals a broader shift toward verified sender identity in email. Here's why it matters for the whole ecosystem.

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BIMI

How to Create a BIMI-Supported SVG Logo File

Nov 11, 20215 min readRed Sift

BIMI requires a specific SVG format that most design tools don't export correctly. Here's a step-by-step guide to creating a compliant logo file.

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BIMI

8 Reasons to Add BIMI to Your Marketing Budget

Nov 4, 20217 min readRed Sift

BIMI increases brand recognition and email trust — and it's measurable. Here's the case for treating it as a marketing investment, not just an IT task.

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BIMI

Red Sift Partners with Entrust to Deliver BIMI at Scale

Jul 15, 20213 min readRed Sift

Red Sift has partnered with Entrust to offer a streamlined BIMI solution. Here's what the partnership means and how to get your logo in inboxes.

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BIMI

Red Sift and the BIMI Pilot: What We Learned

Jul 23, 20202 min readRed Sift

Red Sift participated in the early BIMI pilot programme. Here's what we learned about adoption barriers, technical hurdles, and what works.

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