I'm sorry about the issue. That's correct. Some email address / website set up re-direction, so that it may direct to another email address / website. As long as you type the email address correctly, and that you are able to send email messages to any other email address, then the issue is that this email address / website / server is having issue.
Please let me know if you have any further question or if you need help with any other computer issue. Please reply at the box below. Thank you.