Set up BIMI step by step - the DNS record, the SVG logo rules, VMC vs CMC certificates, and what Gmail, Yahoo and Apple Mail require in 2026 - plus how to get BIMI implemented if you would rather work with a consultant in India.
The complete 2026 guide to Microsoft email deliverability: 15 bounce codes decoded, compauth/SCL headers from real captures, SNDS, escalation paths, and fixes per sender type.
A DKIM replay attack re-sends one validly signed message to millions and it still passes. How replay works, a safe lab to see it, and how DKIM2 fixes it.
A provider dropped an unreadable XML file in your inbox? Here is what a DMARC aggregate report is and how to read one, field by field, with a worked example.
Run a free email domain health check and understand every result. MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI and DNSSEC explained simply, with the...
Learn how to implement SPF, DKIM, and DMARC to protect your domain from email spoofing. Complete step-by-step guide with examples and best practices...
Stay ahead of the 2025 email tracking and privacy regulation changes. Learn how Gmail, Apple, and Microsoft are altering email tracking, why open rates...
Let's learn about ParseDMARC. An open source DMARC analyzer - alternative to commercial DMARC report processing tools.
An SPF (Sender Policy Framework) record is used to indicate which hosts are authorised to send emails for a domain. It is defined in RFC 4408 and...
DMARC stands for “Domain-based Message Authentication, Reporting & Conformance.” DMARC is built upon two other authentication protocols: SPF (Sender...