What is Email authentication and difference between DomainKeys and DKIM?
Email authentication gives mailbox providers (like Gmail or Outlook) confidence that the messages they see from senders are authentic and not messages sent by a bad actor. The more confidence a mailbox provider has that the messages you send are legitimate, the more likely that provider is to deliver the message to the inbox. Full use of email authentication tools is best practice for email senders since spammers have become very smart about disguising malicious email under the veil of a trusted brand. Email authentication, or DMARC, gives mailbox providers (like Gmail or Outlook) confidence that the messages they see from senders are authentic and not messages sent by a bad actor. This framework is helpful when trying to prevent important emails from being flagged as spam or junk mail. Email authentication is a security technology that validates the identity of the mail server sending you mail. This is a fancy way of confirming that you are receiving emails from who you think you are receiving emails from, and not someone pretending to be them.
Difference between DomainKeys and DKIM :DKIM (DomainKeys Identified Mail): DomainKeys Identified Mail (DKIM) is an email security standard designed to make sure messages aren’t altered in transit between the