Internet mail protocols

Internet protocol used for relaying e-mails

application layer internet protocol for e-mail retrieval and storage

family of Internet mail protocols

software that transfers electronic mail messages from one computer to another using SMTP

S/MIME (Secure/Multipurpose Internet Mail Extensions) is a standard for public-key encryption and signing of MIME data. S/MIME is on an IETF standards track and defined in a number of documents, most importantly . It was originally developed by RSA Data Security, and the original specification used the IETF MIME specification with the de facto industry standard PKCS #7 secure message format. Change control to S/MIME has since been vested in the IETF, and the specification is now layered on Cryptographic Message Syntax (CMS), an IETF specification that is identical in most respects with PK

extension to plain text communication protocols, which offers a way to upgrade to encrypted connections

computer network protocol

Messaging Application Programming Interface (MAPI) is an API for Microsoft Windows which allows programs to become email-aware. While MAPI is designed to be independent of the protocol, it is usually used to communicate with Microsoft Exchange Server.

extension of Internet protocol

computer program or software agent that receives electronic mail messages

SMTPS (Simple Mail Transfer Protocol Secure) is a method for securing the SMTP using transport layer security. It is intended to provide authentication of the communication partners, as well as data integrity and confidentiality.

set of proprietary protocols designed for the synchronization of email, contacts, calendar, tasks, and notes from a messaging server to a mobile device

generic application messaging protocol intended to replace IMAP and SMTP