Hi Giuliano!
> deny message = Go away.
> condition = ${if match {$local_part}{\Ninocencia[A-z]{4}\N}{yes}{no}}
> domains = +local_domains
That will do the trick, but there is also a specific ACL condition
just for checking local parts (note the "^"):
deny domains = +local_domains
local_parts = \N^inocencia[a-z]{4}\N
message = No such user here; possible forgery.
Andy