Um serviço de correio eletrônico internet seguro e transparente ao usuário.

Abstract

The Simple Mail Transfer Protocol (SMTP) is the TCP/IP standard for the electronic mail transfer from one computer to another. It does not address security aspects, like catching the message or faking the sender. Today, to avoid non-authorized e-mail access or modification, one needs to use tools external to the e-mail software or to depend on a complex infrastructure for cryptography key distribution. This work specifies the Secure Simple Mail Transfer Protocol (SSMTP), which is an SMTP secure extension. It was designed to be easily integrated within the e-mail software and to run independently of any distribution key supporting service. Besides SSMTP, this work also defines the Local Mail Security Procedures (LMSP) to assure e-mail servers local security.