Our domain, Mydomain.com, was moved to Office 365 to host our mail. It is the small business version o 365. At the time our website was www.mydomain.com. Our company has changed branding and the website we use is now www.thebigdomain.com. mydomain no longer has content. We want people going to www.mydomain.com to be redirected to www.thebigdomain.com. I changed the A record in 365 to point to the IP address of thebigdomain, but now when you go to mydomain you just get a "HTTP Error 404. The requested resource is not found." error. So I'm at a loss as what to do next.