bind index <Esc>\` previous-unread
bind pager <Esc>\` previous-unread
unset strict_threads
-set editor="vim -c 'set noai' -c 'set ts=8'"
+# tw=78 is for gq and RFC 2822 section 2.1.1.
+set editor="vim -c 'set noai' -c 'set ts=8' -c 'set tw=78'"
set send_charset="us-ascii:iso-2022-jp:utf-8"
set charset="utf-8"
set autoedit