RFC 5321 RFC 5322 Letter Envelope 5321.MailFrom 5322.From

RFC 5321 and RFC 5322

It’s important to have a basic understanding of RFC 5321 and RFC 5322 to fully understand DMARC, DKIM and SPF. These two RFC’s describe different types of sender information and …

DMARC processing flowchart

DMARC Explained

Anyone involved with managing Office 365 or other mail systems should definitely have a look at DMARC. DMARC stands for “Domain-based Message Authentication, Reporting and Conformance” and is built upon …