E mail authentication and related principles like DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, RUA, RUF, as well as the comparison concerning AntiSpam and DMARC, as well as principle of DMARC Alignment, are vital in knowing how email protection and integrity are maintained. Here is an overview of every term:E-mail Authentication: This is a course of a