ok so every time i send a email with or without attachments i get an instaintanious email in the inbox of my account  with a post master alert saying this message was not sent why does this happen and how can i fix it please help

To diagnose the problem, please send us a copy of the undeliverable message with the full headers included. Here are the steps below on how you can view the full message headers of an e-mail:

1. Click the “Mail” tab located at the left side of the page.
2. Right-click on the undeliverable message.
3. Choose the “View source” option on the dropdown menu. You will be seeing a new window containing the e-mail message headers and its content.

BTW, I've moved your post here at the Mail Delivery Forum.