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t. e. In computing, the Internet Message Access Protocol ( IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection. [1] IMAP is defined by RFC 9051 . IMAP was designed with the goal of permitting complete management of an email box by multiple email clients, therefore ...
MIME. Multipurpose Internet Mail Extensions ( MIME) is a standard that extends the format of email messages to support text in character sets other than ASCII, as well as attachments of audio, video, images, and application programs. Message bodies may consist of multiple parts, and header information may be specified in non-ASCII character sets.
S/MIME. 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 RFC 8551. It was originally developed by RSA Data Security, and the original specification used the IETF MIME specification ...
The Simple Mail Transfer Protocol ( SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. User-level email clients typically use SMTP only for sending messages to a mail server for relaying, and typically submit outgoing ...
The basic Internet message format used for email is defined by RFC 5322, with encoding of non-ASCII data and multimedia content attachments defined in RFC 2045 through RFC 2049, collectively called Multipurpose Internet Mail Extensions or MIME. The extensions in International email apply only to email. RFC 5322 replaced the earlier RFC 2822 in ...
Media type. A media type (formerly known as a MIME type) [1] is a two-part identifier for file formats and format contents transmitted on the Internet. Their purpose is somewhat similar to file extensions in that they identify the intended data format. The Internet Assigned Numbers Authority (IANA) is the official authority for the ...
HTTP. HTTP header fields are a list of strings sent and received by both the client program and server on every HTTP request and response. These headers are usually invisible to the end-user and are only processed or logged by the server and client applications. They define how information sent/received through the connection are encoded (as in ...
January 2024) (Learn how and when to remove this message) Content sniffing , also known as media type sniffing or MIME sniffing , is the practice of inspecting the content of a byte stream to attempt to deduce the file format of the data within it.