diff --git a/vim/.vim/after/ftplugin/mail.vim b/vim/.vim/after/ftplugin/mail.vim
new file mode 100644
index 0000000..fd9624b
--- /dev/null
+++ b/vim/.vim/after/ftplugin/mail.vim
@@ -0,0 +1,6 @@
+" Create the `b:undo_ftplugin` variable if it doesn't exist
+call ftplugined#check_undo_ft()
+
+" Change max length of a line to 72 to follow the netiquette
+setlocal colorcolumn=72
+let b:undo_ftplugin.='|setlocal colorcolumn<'