[statusbar] add mailo slot to sb-mailbox

.local/bin/statusbar/sb-mailbox

@@ -16,7 +16,8 @@ do
 	new="$(find "${XDG_DATA_HOME:-$HOME/.local/share}"/mail/$acc/[Ii][Nn][Bb][Oo][Xx]/new/* -type f | wc -l 2>/dev/null)"
 	if [ $new -gt 0 ]; then
 		[ -n "$(echo "$acc" | sed -n '/@etu/p')" ] && box=""
-		[ -n "$(echo "$acc" | sed -n '/@posteo/p')" ] && box=""
+		[ -n "$(echo "$acc" | sed -n '/@mailo/p')" ] && box=""
+		[ -n "$(echo "$acc" | sed -n '/@posteo/p')" ] && box=""
 		unread="$unread/$box$new"
 	fi
 done