e-mail security.

[home user]

Good afternoon,

Today, I received a message claiming to be from "noreply(a)barracuda.com". 
  Never heard of them.  The message tells me to click a link in the 
message to view an encrypted message.  Now I know that clicking links in 
e-mail is risky.  How do I safely determine if this is genuine and safe 
without clicking that link?

thanks,
Bill.