Outlook 2007: How do I turn on links to be active when writing emails?

When I write emails in Outlook 2007 and write a link it looks like it is not active but when I read the email after sending, I can see that the link is active since it is underlined www.example.link but when I write it it is not underlined www.example.link

Why is that and how can I change it so it looks active when writing it?
Some of the people receiving my emails says the links are not active so they have to copy/paste the links into their browser.... ????

You need to make sure you are not sending emails as plain text, I've not got outlook 2007 installed here so I cant give you a step by step instructions to switch it to html.

The following Microsoft page has full instructions - Change the message format to HTML, Rich Text, or plain text - Outlook - Office.com

Thanks but I already use HTML format when sending emails.

Just a small point; do press the space bar or press enter after you've typed the link?

Doing so should convert it to a hyperlink.

Thanks, I do press the space bar or Enter but the link still just looks like normal text with no underscore...