If my website I am trying to mirror is www.example.net all references to this
are changed to relative except for links that do not contain the www

For example
<a 'rel=nofollow' href=http://www.example.net/ 
****converts as expected

<a 'rel=nofollow' href=http://example.net/
*****does not convert to an relative link - stays absolute

I have search the forum and cannot come up with the answer, but find it hard
to believe others are not having the same issue.  Is there a setting that I
have to change?