A method of providing security to transport e mails is

A method of providing security to transport emails is:

  1. Transport Layer Security (TLS): a cryptographic protocol that provides end-to-end encryption and authentication for email communications.
  2. Secure Sockets Layer (SSL): a predecessor to TLS, still used by some email providers for encrypting email communications.
  3. STARTTLS: an extension to the Simple Mail Transfer Protocol (SMTP) that allows for the encryption of email communications using TLS.
  4. DomainKeys Identified Mail (DKIM): a method of authenticating the sender of an email by using a digital signature.
  5. Sender Policy Framework (SPF): a method of preventing spam by verifying the authenticity of an email sender's IP address.
  6. Domain-based Message Authentication, Reporting, and Conformance (DMARC): a method of authenticating the sender of an email and preventing email spoofing.
  7. PGP (Pretty Good Privacy): a method of encrypting email communications using public-key cryptography.
  8. S/MIME (Secure/Multipurpose Internet Mail Extensions): a method of encrypting email communications using public-key cryptography.
  9. Email Encryption: a method of encrypting email communications using symmetric-key cryptography, where the same key is used for both encryption and decryption.
  10. End-to-End Encryption: a method of encrypting email communications using public-key cryptography, where only the sender and intended recipient have the decryption keys.

These methods provide various levels of security to protect email communications from interception, tampering, and eavesdropping.