if !exists("g:markdown_in_mail")
  setlocal wrap
  setlocal linebreak
  setlocal textwidth=0

  " treat wrapped lines normally
  nnoremap k gk
  nnoremap <Up> gk
  inoremap <Up> <C-\><C-o>gk
  nnoremap j gj
  nnoremap <Down> gj
  inoremap <Down> <C-\><C-o>gj
  nnoremap 0 g0
  nnoremap <Home> g0
  inoremap <Home> <C-\><C-o>g0
  nnoremap $ g$
  nnoremap <End> g$
  inoremap <End> <C-\><C-o>g$
end