-function! s:KillSignature() abort
- call cursor(1, 1)
- call search('^[>|] \?-- \?$')
- if getpos(".")[1] != 1
- normal d}
- endif
-endfunction
-
-autocmd BufRead /tmp/mutt-* call s:KillSignature()
-autocmd BufRead /tmp/mutt-* setlocal textwidth=72
-autocmd BufRead /tmp/mutt-* setlocal commentstring=>%s
-autocmd BufRead /tmp/mutt-* silent %substitute /^> */>/e | set nohlsearch