If you are away from your office and unable to access Outlook (or any other email client you may use on your desktop), you can always check your email directly through the email server. Please note that you will need to know your email password to login. You may access your inbox on the server as follows:
For Rackspace email accounts:
For 1and1 email accounts:
For ENOM email accounts:
In your webmail account, you can receive and send messages, change your password, modify your spam settings and even set your auto-responder if you will be out of the office. Below are links to helpful webmail guides for the three platforms that give instructions on how to use the various tools: