Email Authentication

Authenticate first, evaluate second: What DMARC teaches us about AI agent identity

AI-written phishing hits a 54% click rate. Detection alone can’t keep up. Here’s the identity model email solved first, and why AI agents need it now.

9 ways to protect & strengthen your brand identity in 2026

From email authentication to visual consistency, discover practical ways to build and protect your brand identity.

Microsoft + Valimail: Customer trust is the new security perimeter in retail

Protect retail email from AI-powered impersonation. Learn how Microsoft and Valimail secure both inbound threats and outbound domain spoofing.

7 best DMARC tools for MSPs and multi-client management

Not every DMARC platform fits an MSP business model. We compare 7 platforms on multi-tenancy, white-labeling, billing fit, and partner support.

SPF, DKIM, and DMARC authentication: How they work together

Learn what SPF, DKIM, and DMARC do, why you need all three, and how to set each one up on your domain.

Why your emails go to spam: 8 fixes that work

Learn why your emails are going to the spam folder and what you can do to improve your deliverability and get them where they belong: the inbox.

How mergers and acquisitions expose hidden email authentication risks

Mergers and acquisitions create inconsistencies in email authentication and sender identity that create risks for both organizations

How to authenticate third-party email senders without hurting deliverability

The first marketing campaign usually works. So does the new payroll platform. Then the security team moves DMARC to enforcement. Then an invoice, password reset, or support reply disappears. That’s the third-party sender problem in miniature. Organizations want to stop attackers from spoofing their domains without blocking the vendors that keep the business running. The […]