It would have been helpful if you had disclosed what your normal email
method is. If you currently use only webmail (like Hotmail), and you
want to keep it that way, all you can do is copy and paste that link from
Craigslist into your favorite email screen.
If you want to move up to a desktop email program, let us know who
your ISP is, and what the part of your email address after the @
symbol is.