imap_body() returns the body of
the message, numbered
msg_number in the current mailbox. The optional flags are a bit mask with one
or more of the following:
FT_INTERNAL - The return string is in internal
format, will not canonicalize to CRLF.
imap_body() will only return a
verbatim copy of the message body. To extract single parts of
a multipart MIME-encoded message you have to use
imap_fetchstructure() to analyze its structure and
imap_fetchbody() to extract a copy of a single body
component.