If a mail is sent as html, the pasted links are not automatically linked in GO email view.
This work for emails sent as text only.
I think this is by design. You must use the "Insert hyperlink" when you compise the email to make the link clickable.
Please see enclosed example.
I was not able to add another attachment..
You can see the example here:
This is an option, but usually a url will be pasted without insert it as hyperlink.
And emails we receive are normally html formatted and the link not surrounded with the link tag.
If it works for text it should be work for html too, in other webmail clients this will work.
It's up to the browser to do this. As far as I know IE and chrome do this, but firefox doesn't.