cmc-basics

Email authentication: SPF, DKIM, DMARC, BIMI and MTA-STS

CMC Introduced 2024 BIMI Group Announcement Explained

Understand the 2024 CMC BIMI Group announcement and how it impacts email deliverability. Verify your list with 98.9% accuracy using MailTester’s real-time.

Email authentication: SPF, DKIM, DMARC, BIMI and MTA-STS

What Is a BIMI Common Mark Certificate CMC? 2026

Understand what a BIMI Common Mark Certificate (CMC) is and how it improves brand trust and inbox placement.