If you had set this up via the gui you most likely would not have the
problem. You also would not have the problem if you had created the mx to
be for huntingleaseonline.com instead of www.huntingleaseonline.com as it
would be included. Just change your mx record and drop the www.
That is why when set up in the GUI
host: www
domain: domain.com
alias domain.com
email alias www.domain.com
This would handle both domain.com and www.domain.com for both web and
mail. The normal mx record would be for the domain not including the
host. domain.com mx domain.com