Glossary

Email encryption

Email encryption

Email encryption is the process of encoding email content so it can only be read by authorized parties. It helps protect sensitive information in transit and reduces the risk of interception, tampering, or unauthorized access. 

There are two common forms of email encryption: 

  • Transport Layer Security (TLS): Encrypts the transmission between mail servers.  
  • End-to-End Encryption: Encrypts the message content from sender to recipient, so even the sending and receiving servers can’t read it. This is more common in secure messaging platforms than standard email. 

Encryption is one part of a broader email security strategy that also includes authentication (SPF, DKIM, DMARC), access controls, and secure storage. Check out how Mailgun encrypts emails to protect your personal information. 

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