5 Email Authentication Edge Cases Basic SPF/DMARC/DKIM Checkers Miss
Five real SPF, DMARC, and DKIM edge cases, shown on public domains, that shallow email security checkers report as passing, and how to catch them.
Erich Kolb
Category
2 articles
What the New Email Authentication Requirements Mean for Your Domain
Google and Yahoo now require DMARC, SPF, and DKIM for all senders. If your domain is not configured correctly, your email lands in spam or gets rejected outright.
Erich Kolb