If you are receiving the above message or a similar message that has the words "550 Relay Error" in it, please follow these directions:

• Open Outlook Express.
• Click the Tools menu.
• Go to "Accounts" at the bottom of that menu.

• Select the Account you want to change.
• Click Properties.

• Click the servers tab.
  
• Check the box that says "My server requires authentication."
• Then click OK then click Close.
• Close Outlook.
• Re-open Outlook and try to send your message.
• If it still doesn't work, click on this link: Telnet Test.