Some of my emails have weird characters like \Impulse\ in it. What is this?
This can occur when your email client does not support HTML (HyperText Markup Language), which is used to code webpages, and sometimes (more and more so) also in emails. Someone has sent you an HTML type email and your email software is either incapable of translating this, or has been set to ignore it (by treating it like it is just text). In some rare cases, badly formatted Spam may also look like this, even though your email client understands HTML. If you prefer to receive text only email, just let the sender know that you cannot receive HTML emails.