Re: Galaxy S4: Email icon
Has it always done this, or did it start just recently? In the latter case, you might try just restarting the phone. If that doesn't help, try clearing the e-mail app's cache: From the Home screen, do Menu > Settings > More > Application manager. Scroll the list to the left till you see the All column, scroll down to the e-mail app, tap it, and then tap Clear cache. That could release something problematic that's gotten "stuck." There's also a Clear data button, BUT that might undo a lot of settings; I'm not sure whether it would actually delete e-mails.