\ 'I':          ':call <SID>NM_search_mark_read_thread()<CR>',
         \ 'a':          ':call <SID>NM_search_archive_thread()<CR>',
         \ 'A':          ':call <SID>NM_search_mark_read_then_archive_thread()<CR>',
+        \ 'D':          ':call <SID>NM_search_delete_thread()<CR>',
         \ 'f':          ':call <SID>NM_search_filter()<CR>',
         \ 'm':          ':call <SID>NM_new_mail()<CR>',
         \ 'o':          ':call <SID>NM_search_toggle_order()<CR>',
         norm j
 endfunction
 
+function! s:NM_search_delete_thread()
+        call <SID>NM_tag([], ['+delete','-inbox','-unread'])
+        norm j
+endfunction
+
 function! s:NM_search_filter()
         call <SID>NM_search_filter_helper('Filter: ', '', '')
 endfunction