[Dovecot] Is there a "connect acl" ?

[Oliver Schulze L.]

Hi,
I have been reading the acl documentation and it seems that a "connect acl"
is not available.

I need to limit the users that can login in an IP number, is that 
posible with
dovecot 1.0? (i.e. only these users can login from the Internet)
Or a new plugin should be written? It is complicated to do that?

Thanks
Oliver

-- 
Oliver Schulze L.   | http://tinymailto.com/oliver  
Asuncion - Paraguay | http://www.solojuegos.mobi