We all get spam email and it wastes a lot of time for me and probably you as well. One rule I have for myself is not to open the messages on my smartphone. I use a Linux computer so it doesn’t mess up my main communication tool if the message has a payload or it re-directs me to a dangerous web site. You might consider having one computer in your business for opening suspicious emails and web links just for this reason – you don’t want to infect your main computer or a smartphone.