Gaurav Maniar founded SimpleDMARC and GavBit. With 5 years in email authentication, penetration testing, and cloud security, he writes hands-on DMARC, SPF, DKIM, and BIMI guides drawn from real-world phishing and spoofing defense work.
The best SPF flattening tools resolve nested `include:` mechanisms into IP addresses so your record stays under SPF's 10 DNS lookup limit. Published pricing runs from $8 to $387 a month, and the cheapest option rarely scales. Here's how nine of them compare, plus when you don't need one at all.
The best free DMARC monitoring tools parse your aggregate report XML and show who's sending as your domain, without a credit card. Tiers differ on three things: monthly volume cap, days of history, and whether a business domain is even allowed. Here's how nine of them compare.
Compare the best DMARC monitoring tools of 2026 — pricing, free tiers, and who each one actually fits, from solo domains to large enterprises.
Digital agencies managing client DMARC face a problem most platforms ignore: you pay more when clients get attacked. Here's a smarter way to manage domain portfolios.
DKIM keys should be rotated periodically to limit exposure if a key is compromised. Here's how to rotate DKIM keys without breaking email delivery.
HIPAA's Security Rule requires technical safeguards that DMARC directly addresses. Here's how DMARC fits into healthcare email compliance and why it matters now.
Your email is authenticated but still failing DMARC? Here's how to diagnose alignment failures, SPF permerror, DKIM selector issues, and forwarding problems.
BIMI lets your brand logo appear in email inboxes. With Microsoft now supporting it, the question isn't whether it works — it's whether the cost justifies it.
DMARC forensic reports give message-level failure detail, but most mailbox providers don't send them. Here's when enabling RUF is worth it and when to skip it.
MTA-STS forces TLS encryption on inbound email — closing the gap DMARC leaves. Learn what it is, how it works, and how to set it up in 30 minutes.
Enterprise DMARC management across multiple domains, audit compliance, and reporting. How storage-based pricing changes the economics for mid-market organizations.
Looking for an EasyDMARC alternative? Compare SimpleDMARC vs EasyDMARC on pricing, features, and MSP support. Storage-based pricing means attack traffic never counts.