[postfix-users] Question about smtp_client_connection_count_limit

[Robert Schetterer]

Georg Käfer schrieb:
> Sympthom:
> 
> my postfix/dovecot server stops connection requests on port 25 if the
> mail reject limit exceeds around 400 per minute.
> 
> Port 25 is available but  no 220 promt is coming. So I assume not enough
> smtp or amavis deamons on port 10024 10025 are available.
> 
> A short postfix reload “solves” the problem, spammer are gone and
> connections are free agai for real users.
> 
>  
> 
> I did review my master.conf an see:
> 
>  
> 
> smtp      inet  n       -       n       -       20      smtpd
> 
>   -o smtpd_proxy_filter=localhost:10024
> 
>   -o content_filter=
> 
>  
> 
> But no smtp_client_connection_count_limit is set (a la):
> 
>  
> 
> smtp      inet  n       -       n       -       20      smtpd
> 
>   -o smtpd_proxy_filter=localhost:10024
> 
>   -o content_filter=
> 
>   -o smtp_client_connection_count_limit=10
> 
>  
> 
>  
> 
> Question:
> 
> I’ve domains where the postfix accepts the smtp directly and I’ve
> domains which have a mailfirewall in front and refuses smtp from all
> other servers (mailfirewall = mx).
> 
> This mailfirewall does also spam and virus checks and sends the “good”
> mails than to my postfix server.
> 
> I assume that the “smtp_client_connection_count_limit” from above
> affects my mailfirewall too.
> 
> How can I exclude my mailfirewall from this
> client_connection_count_limit (or how can I set a seperate limit for my
> mailfirewall) – or makes this no sense and the limit set is best solution?
> 
>  
> 
> For this mailfirewall I’ve condfigured in main.cf:
> 
> check_recipient_access hash:/etc/postfix/recipient_access
> 
>  
> 
> :/etc/postfix/recipient_access:
> 
> mydomain.tld                   check_if_mailfirewall_is_sender
> 
>  
> 
> main.cf:
> 
> check_if_mailfirewall_is_sender =
> 
>  check_client_access hash:/etc/postfix/mailfirewall-ip,
> 
>  check_recipient_access pcre:/etc/postfix/nice_mailfirewall_reject.pcre,
> 
>  reject
> 
>  
> 
>  
> 
> Liebe Gruesse,
> 
> Georg
> 

warum hier in englisch ?
haste dich vertan ?
>  
> 
> 
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> 
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-- 
Best Regards

MfG Robert Schetterer

Germany/Munich/Bavaria