Hi Suhail, Thanks for you reply. I have just had chance to take a greater look into my problem and I found that the HTML message was not displaying correctly in MYL because the message did not contain an opening <HTML> and <BODY> tags and neither did it have a closing </BODY> and </HTML> tags.
After adusting the newsletter script to include these tags and the message inbetween mailyoulike handles the output fine. Just looks like if HTML messages are to be received properly by MYL the messages must include a full HTML markup not just the message in HTML.
Anyways my problem is now solved, however maybe worth thinking about incase other systems don't include a opening set of tags and just output the raw HTML for the message.
Hope this makes sense.
Cheers
Anthony