After many emails... the final result:
Please create a new mailing list, and make Víctor the owner:
Grupo de Usuarios PostgreSQL de América Central
am-central-pug@postgresql.org
Víctor Ostorga <vostorga@gmail.com>
Please create another new mailing list and make Guido the owner:
Argentina PUG
arpug@postgresql.org
Guido Barosio <gbarosio@gmail.com>
Thanks!
-selena
--
Selena Deckelmann
Open Source Bridge - http://www.opensourcebridge.org
PDXPUG - http://pugs.postgresql.org/pdx
Me - http://www.chesnok.com/daily