Because I don’t like opening emails on my machine, I pay for domain web hosting which includes an email server. This way I can open them on their server with their security tools and it is protected by domain business commercial law.
It’s not my first rodeo with emails. This way I need absolutely no antivirus ware or all the updates that go with it on my PC. I can safely open attachments in a very controlled isolated environment before even downloading to my machine to view or check the source code first. It is designed for and a MUST for spam you get on website scripts.