April 2006
RFC 4469 (Updates: 3501, 3502) : Internet Message Access Protocol (IMAP) CATENATE Extension - P. Resnick, QUALCOMM Incorporated - April 2006
"The CATENATE extension [...] extends the APPEND command to allow clients to create messages on the IMAP server that may contain a combination of new data along with parts of (or entire) messages already on the server".
September 2005
1
(2 marks)