I can recieve emails on outlook express but cannot send.1 person needs an answerI do too

Post the complete and exact text of the non-delivery report. A "550" error from the server is a generic "can't deliver" message. The bounce message contains more information that will tell you what the exact problem is.Brian Tillman [MVP-Outlook]--------------------------------https://mvp.support.microsoft.com/profile/Brian.TillmanIf a reply helps, please vote it as helpful. If a reply solves the issue, please mark it as an answer.

Hi 1gadget, ·Do you remember any recent changes made on the computer prior to the issue?·What is the complete error message you are reciving? Try the steps suggested in the below link: Troubleshoot 550, 553, and relay-prohibited errors:http://office.microsoft.com/en-us/outlook-help/troubleshoot-550-553-and-relay-prohibited-errors-HA001112833.aspx (Holds good for Outlook express) Regards:Samhrutha G S - Microsoft Support.Visit our Microsoft Answers Feedback Forum and let us know what you think.