TCP/IP Tutorial and Technical Overview - IBM Redbooks

► In the authenticated state:
– SELECT name: Select the mailbox named name.
– EXAMINE name: Select the mailbox named name, but in read-only mode.
– CREATE name: Create a mailbox named name.
– DELETE name: Delete the mailbox named name.
– RENAME oldName newName: Change the name of the mailbox named
oldName to newName.
– SUBSCRIBE name: Add the mailbox named name to the subscription list.
– UNSUBSCRIBE name: Remove the mailbox named name from the
subscription list.
– LIST name mailbox: Return a list of all names conforming to the name
string within mailbox. If the name argument is not specified, all available
names are listed.
– LSUB name: Return a list of all mailboxes on the subscription list that
conform to name. If the name argument is not specified, all mailboxes on
the subscription list are returned.
– STATUS name item: Return the status of item for the mailbox named
name.
– APPEND mailbox message: Appends the message text to the given
mailbox as a new message. In the original RFC 3501 definition, only one
message could be APPENDed at a time. However, a MULTIAPPEND
extension was provided in RFC 3502, allowing multiple messages to be
APPENDed at once. It was later extended by RFC 4469 to include a
CONCATENATE option. This option enables a user to APPEND a
message without first having to FETCH it from the server.
► In selected state:
– CHECK: Request a checkpoint of the currently selected mailbox. The
checkpoint is implementation-specific, but typically consists of
“house-keeping” functions such as synchronizing a mailbox between a
client and server.
– CLOSE: Close the currently selected mailbox. This permanently removes
all messages from the mailbox that were previously marked as deleted
and returns the client to the authenticated state.
– UNSELECT: Close the current mailbox without removing messages
previously marked deleted. Note that this command is not defined in the
original RFC 3501 specifications. Its implementation is defined in RFC
3691 and it is optional.
Chapter 15. Mail applications 595