Off topic... Postfix question

Thorsten Schocke thorsten.schocke at morlott.de
Sun Mar 2 07:08:07 GMT 2008


Hello,

maybe you're looking for some anvil features:

simultaneous connects from the same IP
smtpd_client_connection_count_limit (amount)
#beware that there might be very dumb implementations for smtp (e.g. 
javamail seems queueless) throwing away the message when this limit 
drops any on-top connection (amount+1) from the same host IP.

mails over time
smtpd_client_connection_rate_limit  (amount)

and making exceptions for this
smtpd_client_event_limit_exceptions (list of type $mynetworks)

all features are listed in http://www.postfix.org/postconf.5.html

cheers
Thorsten


Maxime Gaudreault schrieb:
>
> Hi
>
>  
>
> Does anyone knows how to make postfix prevent mass spam attack ?
>
>  
>
> For exemple: accept a max of * connection / minutes from the same server.
>
>  
>
> *Maxime Gaudreault*
>
> Technicien
>
> _                                                  _
>
> Référence Systèmes inc.
>
> Tél. : 418.650.0997
>
> Téléc. : 418.650.9668
>
> Courriel : _mgaudreault_ at reference.qc.ca 
> <mailto:mgaudreault at reference.qc.ca>
>
> Site Internet : http://www.reference.qc.ca/
>
>  
>
>  
>



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