DKIM alignment: Why your signature failed (and how to fix it)
Learn why your DKIM signatures fail alignment checks and how to fix these issues with this quick-and-easy guide to email authentication.
Three years running: Valimail remains #1 in G2 report for DMARC for the 12th consecutive quarter
Valimail celebrates 3 years of 12 consecutive quarters at #1 on G2’s DMARC Grid. Discover why customers worldwide trust our zero-trust email solutions.
Managing multiple DKIM records: 7 best practices for your domain
Learn the best practices for managing multiple DKIM records for your domain to maximize email security and deliverability.
What are the DMARC policy options, and how do you reach enforcement?
What is a DMARC policy? Learn the difference between p=none, p=quarantine, and p=reject—and how to reach full DMARC enforcement.
9 ways to pass Microsoft’s email authentication requirements
Learn how to meet Microsoft’s strict email requirements with these authentication best practices to boost deliverability and trust.
What Microsoft’s ‘550; 5.7.515’ error really means (and how to fix it)
Learn why Microsoft is rejecting your emails with 550 5.7.515 errors and (more importantly) how to fix it.
Why your emails go to spam: 8 fixes that actually 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 to detect if Microsoft is rejecting your emails (and why)
Learn how to detect if Microsoft is rejecting your emails due to new authentication rules—and how solutions like Valimail Monitor can help you fix it.
A complete guide to email compliance requirements from Microsoft, Google, Apple, and Yahoo
Learn the 2025 email compliance requirements for Microsoft, Google, Apple, and Yahoo. Ensure your emails get delivered with SPF, DKIM, and DMARC.
SPF checker: Find and fix your email delivery issues
Use our free SPF checker to test your email authentication. Find configuration issues, get simple explanations, and fix deliverability problems in seconds.
DKIM setup guide: step-by-step to set it up
Master DKIM setup and safeguard your brand’s email. Get the steps you need for strong authentication and reliable delivery.
How to fix “DMARC policy not enabled” errors
Learn how to fix “DMARC policy not enabled” errors and secure your email domain with proper enforcement in this step-by-step guide.
