(if (imap-capability 'IMAP4rev1)
(format "BODY.PEEK[HEADER.FIELDS %s])" headers)
(format "RFC822.HEADER.LINES %s)" headers)))))
+ (with-current-buffer nntp-server-buffer
+ (sort-numeric-fields 1 1 (buffer-size)))
(and (numberp nnmail-large-newsgroup)
(> nnimap-length nnmail-large-newsgroup)
(nnheader-message 6 "nnimap: Retrieving headers...done")))))