2009/10/19 Craig Watson <c.wat...@glbb.jp>:
> I have some hosts in mynetworks.  They cannot handle authentication but I
> want to apply the rate limits to them too.  Is there anyway I can allow them
> to relay but apply the rate limits to them?  Below is my current config.

I believe the correct way is to use a policy service:
http://www.postfix.org/SMTPD_POLICY_README.html

> #150 Recipients/Mail mesasge
> smtpd_recipient_limit = 150

I'm not sure if this low limit breaks any RFCs, but in any case a
client can get around this by making another connection. You're
attempting to then rate-limit the connections below, but it's not
really a "good" way of doing it.

> #Exclude these dudes.
> smtpd_client_event_limit_exceptions=111.111.111.111/32, 111.111.111.112/32
> #Limit to 2 Connections Per Client
> smtpd_client_connection_count_limit=2
> #Limit to 10 Connection attempts/Client/anvil_rate_time_unit
> smtpd_client_connection_rate_limit=10
> #Limit to 15 messages every anvil_rate_time_unit
> smtpd_client_message_rate_limit=15
> #Unit Time is 240 Seconds
> anvil_rate_time_unit=240

It doesn't seem to be in the official anvil docs
(http://www.postfix.org/anvil.8.html), but I'm sure Wietse and others
will be happy to jump in and point out that anvil is NOT for
policy-based rate-limiting (so such usage probably won't be supported)
- it's an anti-DoS measure against malicious or runaway clients. It's
also a very crude tool for the job - I can't tell you off the top of
my head just what the limit is you're attempting to enforce there,
maybe it's 2250 per 4min, maybe it's 1500, maybe it's something else.

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