separated from webmail mod

onjoin.lua

@@ -0,0 +1,19 @@
+minetest.register_on_joinplayer(function(player)
+	minetest.after(2, function(name)
+		local messages = mail.getMessages(name)
+
+		local unreadcount = 0
+
+		for _, message in pairs(messages) do
+			if message.unread then
+				unreadcount = unreadcount + 1
+			end
+		end
+
+		if unreadcount > 0 then
+			minetest.chat_send_player(name,
+				"(" ..  unreadcount .. ") You have mail! Type /mail to read")
+
+		end
+	end, player:get_player_name())
+end)