[Dovecot] Dovecot Log analysis

Hello,

Before writing them myself, I'd like to figure out if some tools exist (anvil ? ...) and how to use them to extract from dovecot logs things like who is doing what and how hard or how fast in order to do some rate limiting. For instance, I'd like to be able to identify, slow or block users who

. read or write to much / slice of time

. login/logout too often / slice of time

Note : I'm still using the 1.2.x branch.

Thanks

-- Thomas Hummel | Institut Pasteur hummel@pasteur.fr | Groupe Exploitation et Infrastructure