Prevent mail bombing

[simonet]

Hi,
there is a method to automatically block a local IP address that send for example 1000 mail in a specified period (es. 60min)?

or

is possible to set a max number of mail that can be sended for each client
(example each client can send 1000 mail in an hour)

or

there is a method to prevent mail bombing?

thanks

[Saturdays]

please check zimbra policyd

Postfix Policyd - Zimbra :: Wiki
Policyd : Accounting