--Cisco Common Classification Policy Language. Structured, feature-specific configuration commands that use policy maps and
class maps to create traffic policies based on events, conditions, and actions.
--Extended HELO substitute command for starting the capability negotiation. This command identifies the sender (client) connecting
to the remote SMTP server by using the ESMTP protocol.
--Extended Simple Mail Transfer Protocol. Extended version of the Simple Mail Transfer Protocol (SMTP), which includes additional
functionality, such as delivery notification and session delivery. ESMTP is described in RFC 1869, SMTP Service Extensions.
--Command that starts the SMTP capability negotiation. This command identifies the sender (client) connecting to the remote
SMTP server by its fully qualified DNS hostname.
--Start of an e-mail message that identifies the sender e-mail address (and name, if used), which appears in the From: field
of the message.
--Multipurpose Internet Mail Extension. Standard for transmitting nontext data (or data that cannot be represented in plain
ASCII code) in e-mail, such as binary, foreign language text (such as Russian or Chinese), audio, or video data. MIME is defined
in RFC 2045.
--Recipient e-mail address (and name, if used) that can be repeated multiple times for a likely message to deliver a single
message to multiple recipients.
--Simple Mail Transfer Protocol. Internet protocol providing e-mail services.