I have received several emails over the past couple of years like the following:
Subject: wihyn j35c
Body: yt
Does anyone know what these people are trying to accomplish? I assume it’s probably some kind of trojan control or something along those lines, but was wondering if anyone had any further info.
Or email sent in a foreign language font, which your computer is displaying as English characters, thus producing ‘weird’ emails. (But those would tend to be longer, like a real email.)
If your email client is set up to read HTML automatically what it does is send a link and the email client reads the HTML and displays it. This allows the sender to see if they email is valid as they can check the website logs.
This is one more reason why you should always disable HTML in emails.