Hi there,
I know this is the postfix list, not the postfwd list, I’ve asked on there too, 
but this list is busier and hopefully someone can help.

I have postfix v2.6.6, and postfwd v1.3.5. I have configured the following rule 
set in postfwd:

[root@monitoringtest ~]# /usr/local/postfwd/sbin/postfwd -f 
/etc/postfix/postfwd.cf -C
Rule   0: id->"davelimit001"; action->"rate(recipient_domain/10/1800/421 4.7.1 
- Sorry, exceeded 10 messages in 30 minutes.)"; 
recipient_domain->"=;dave-byrne.co.uk"
Rule   1: id->"STRESS"; action->"dunno"; stress->"==;yes"
Rule   2: id->"WL_001"; action->"dunno"; client_address->"=;127.0.0.1/32"
[root@monitoringtest ~]#

I am trying to limit the number of mails destined for one specific domain to a 
very small amount, 10 within 30minutes. Any other mails past 10 within 30mintes 
get rejected (not delayed, I don’t want them to send later on, I want them to 
be discarded).

I integrated with postfix:
[root@monitoringtest ~]# cat /etc/postfix/main.cf | tail -n 4
smtpd_recipient_restrictions = permit_mynetworks,
        ...,
        reject_unauth_destination,
        check_policy_service inet:127.0.0.1:10040       #postfwd
[root@monitoringtest ~]#

I then use another external test server, and telnet, to manually send 10, 15, 
20 emails TO: ad...@dave-byrne.co.uk, and they all send… It never rate limits 
them. Why is this?

Interestingly, in /var/log/maillog, I can see this:
Oct 19 09:01:58 monitoringtest postfwd[20426]: [STATS] postfwd 1.35: up since 0 
days, 13:30:00 hours
Oct 19 09:01:58 monitoringtest postfwd[20426]: [STATS] Requests: 0 overall, 0 
last interval, 0.0% cache hits, 0.0% rate hits
Oct 19 09:01:58 monitoringtest postfwd[20426]: [STATS] Averages: 0.0 overall, 
0.0 last interval, 0.0 top
Oct 19 09:01:58 monitoringtest postfwd[20426]: [STATS] Contents: 2 rules, 0 
cached requests, 0 cached dns results, 0 rate limits

It says 2 rules, and 0 rate limits… It should be 2 rules and 1 rate limit. Have 
I configured my rate limit wrong? Below is my rate limit config in postfwd.cf:
#Dave - 10 messages in 1800 seconds (30mins)
id=davelimit001
        recipient_domain=dave-byrne.co.uk
        action=rate(recipient_domain/10/1800/421 4.7.1 - Sorry, exceeded 10 
messages in 30 minutes.)

Any help is greatly appreciated. Thanks.


Best Regards,
Dave Byrne
Head of Technical Projects
Office: 01622 524 200
The Maidstone Studios | Vinters Business Park | New Cut Road | Maidstone | Kent 
| ME14 5NZ

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