E mail authentication and similar principles like DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, RUA, RUF, as well as the comparison concerning AntiSpam and DMARC, as well as strategy of DMARC Alignment, are critical in comprehension how email protection and integrity are taken care of. This is an overview of each and every term:E mail Authentication: T