Original code was nnshimbun.el written by
TSUCHIYA Masatoshi <tsuchiya@namazu.org>.

Shimbun API:

shimbun-open
shimbun-server
shimbun-groups
shimbun-current-group
shimbun-open-group
shimbun-close-group
shimbun-headers
shimbun-reply-to
shimbun-x-face
shimbun-header-insert
shimbun-search-id
shimbun-article-expiration-days
shimbun-article
shimbun-close

Shimbun Header API:

shimbun-header-subject
shimbun-header-set-subject
shimbun-header-from
shimbun-header-set-from
shimbun-header-date
shimbun-header-set-date
shimbun-header-id
shimbun-header-set-id
shimbun-header-references
shimbun-header-set-references
shimbun-header-chars
shimbun-header-set-chars
shimbun-header-lines
shimbun-header-set-lines
shimbun-header-xref
shimbun-header-set-xref
shimbun-header-extra
shimbun-header-set-extra