DKIM fail: Reasons, types, examples, and how to fix it
Learn what a DKIM fail is, the different types of DKIM failures, why they happen, and real-world examples.
How to send secure and encrypted email in Outlook in 2026
Learn how to send secure, encrypted email in Outlook with built-in encryption, sensitivity labels, or S/MIME. Step-by-step instructions for every method.
Yes, you can have multiple DKIM records (learn how to do it)
Yes, you can have multiple DKIM records on one domain, one per selector. Here’s how many you can have, how they work, and how to manage them.
Trust is the new security perimeter in education
Educational institutions depend on trusted email. See how Microsoft and Valimail help prevent spoofing, secure domains, and protect campus communities.
How to move from DMARC p=none to p=reject safely
p=reject is the only DMARC policy that stops spoofing, but you don’t switch overnight. Here’s how to move from p=none to p=reject without blocking real mail.
The state of email authentication adoption in 2026
See how SPF, DKIM, DMARC, and BIMI are shaping email security in 2026, plus the common gaps that leave organizations exposed.
Industry compliance and email authentication requirements (FINRA, HIPAA, GDPR, PCI)
Understand industry-compliant email authentication and how you can translate mailbox-level risks to audit-ready controls.
Email authentication trends to watch in 2027 and beyond
DMARC enforcement is becoming a baseline expectation. Here’s what email authentication will require from your organization by 2027.
How to set up a DMARC record in Microsoft 365 in 2026
Set up DMARC in Microsoft 365 step by step. Covers DNS record creation, policy options, reporting setup, and common Office 365 DMARC issues and fixes.
How email authentication impacts deliverability and campaign performance
Stronger email authentication boosts inbox placement, protects domain reputation, and drives higher opens, clicks, and revenue from every campaign.
Enterprise email authentication at global scale: Navigating compliance and complexity
Global enterprise email authentication at scale: Manage multi-domain complexity with centralized SPF, DKIM, and DMARC governance at scale.
DKIM vs SPF: What’s the difference and do you need both?
What’s the difference between DKIM vs SPF? Both authenticate email, but they work differently. Learn how SPF and DKIM protect your domain and why you need both.