If you still have access to your old email account you can ask reinstatement (
http://www.dmoz.org/docs/en/reinstate.html )
and change the email yourself.
If you do not have access to the gmail account anymore then send me a PM through
http://www.dmoz.org/public/profile?editor=pvgool
giving me more prove that you are the editor you claim to be (I am sure you are but we need confirmation)
tell me
your real name
your editor name (leandro)
the categories you were active in
(approximate) date you joined DMOZ
approximate date you timed out
anything else you think is helpfull in determing you are leandro