Six Sigma is a methodologyâ This view of Six Sigma recognizes the underlying and rigorous approach known as DMAIC (define, measure, analyze, improve and control).
E-mail protocols [edit]. The Internet Message Access Protocol is an Application Layer Internet protocol that allows an e-mail client to access e-mail on a remote mail server. The current version, IMAP version 4 revision 1 (IMAP4rev1), is defined by RFC 3501. An IMAP server typically listens on well-known port 143.
IMAP is a more recent and more advanced standard for mail storage and retrieval than POP (Post Office Protocol). It allows for messages to be kept in multiple folders, supports folder sharing, and online mail handling, say through a web browser, where email message need not be stored on the user's computer.