slow logins over login_trusted_network

[Wojciech Puchar]

>> how to disable throttling (or better - put other limits) for 127.0.0.1?
>
> https://wiki2.dovecot.org/Upgrading/2.3 - look for "Localhost Auth Penalty"
>
that's certainly this.

but i am not an expert in this passdb system

my current config is

passdb {
  driver=passwd-file
  args= username_format=%Lu /usr/local/etc/dovecot/aliasy
}

passdb {
   driver = pam
   # [session=yes] [setcred=yes] [failure_show_msg=yes] [max_requests=<n>]
   # [cache_key=<key>] [<service name>]
   #args = dovecot
}

userdb {
   # <doc/wiki/AuthDatabase.Passwd.txt>
   driver = passwd
   # [blocking=no]
   #args =

   # Override fields from passwd
   #override_fields = home=/home/virtual/%u
}




where /usr/local/etc/dovecot/aliasy is a list of e-mail names to user 
account names like this

wojtek at puchar.net:::::::user=puchar-wojtek


how to properly do this?