Setting the mail sender's name, fix issue #448

Hi! 

Gmail appears to be not accepting characters like "<" and ">" into the 'From' field (at the Send method).

However, gmail accepts the syntax `From: SOME NAME <SOME@MAIL.COM>` at message body.  

So the fix is just send only the email(without alias and special chars) at Send method.
IMO this shouldn't be the concern of the framework.