[Dovecot] pop3 rate limit

[michael]

On 2013-12-29 02:05, Christian Rößner wrote:
> Hi,
>
> we have customers with Exchange servers that are polling for new mail
> every minute with dozens of pop3 accounts. I am looking for a
> mechanism to rate limit this per user. So what I am looking for is a
> way to block users from polling, if a user asks for new mail more 
> than
> every 5 minutes (for example).
>
> Is this possible? Can this be achieved within Dovecot or does it need
> external scripting? (I thought about fail2ban, but also want IPv6
> support)
>
> Thanks in advance
>
> -Christian Rößner

See:
www.policyd.org

You'll need to use v2.1 to get IPV6 support.

Michael Hallager