Inserting letter to which you're replying
.........................................
To control how much of the message to which you are replying is
yanked by `C-c C-y' (`mh-yank-cur-msg') into your reply, modify
`mh-yank-from-start-of-msg'. The default value of `t' means that the
entire message is copied. If it is set to `'body' (don't forget the
apostrophe), then only the message body is copied. If it is set to
`nil', only the part of the message following point (the current cursor
position in the message's buffer) is copied. In any case, this
variable is ignored if a region is set in the message you are replying
to. The string contained in `mh-ins-buf-prefix' is inserted before
each line of a message that is inserted into a draft with `C-c C-y'
(`mh-yank-cur-msg'). I suggest that you not modify this variable. The
default value of `"> "' is the default string for many mailers and news
readers: messages are far easier to read if several included messages
have all been indented by the same string. The variable
`mail-citation-hook' is `nil' by default, which means that when a
message is inserted into the letter, each line is prefixed by
`mh-ins-buf-prefix'. Otherwise, it can be set to a function that
modifies an included citation. (1) If you like to yank all the text
from the message you're replying to in one go, set
`mh-delete-yanked-msg-window' to non-`nil' to delete the window
containing the original message after yanking it to make more room on
your screen for your reply.
---------- Footnotes ----------
(1) _Supercite_ is an example of a full-bodied, full-featured
citation package. It is in Emacs versions 19.15 and later, and can be
found via anonymous `ftp' on `archive.cis.ohio-state.edu' in
`/pub/gnu/emacs/elisp-archive/packages/sc3.1.tar.Z'