Strange characters in emails from blog

Hello,

The title of my blog is “Robert Dailey’s Blog”, and the apostrophe displays fine most of the time. However, it’s only when I receive an email sent from my blog that I see it look like this:

Robert Dailey's Blog

I’m reading my email through GMail’s web interface, so I’m not sure if this is a problem with gmail or if the email isn’t being formatted correctly to display the apostrophe. Help is appreciated.